immo!nvest – Die Plattform für Standorte und Immobilien

Category: Energy

  • Researchers use AI to develop new solar cells

    Researchers use AI to develop new solar cells

    As part of a research project at the Swiss Federal Institute of Technology in Lausanne(EPFL), a method has been developed to search large databases for potential materials for the utilisation of new solar cells. According to a press release, several promising halide perovskites were identified through the use of machine learning (ML). ML is a branch of artificial intelligence in which computers learn from data sets or databases made available to them.

    Perovskites represent a promising new group of materials for future photovoltaic applications due to their simple manufacturing processes combined with low costs. It is important that the new materials have a suitable band gap so that they can utilise solar energy optimally. The band gap has the property of absorbing photons with a certain energy and then converting them into electricity.

    The EPFL team led by Haiyuan Wang and Alfredo Pasquarello developed a machine learning model that was able to identify 14 completely new perovskites from 15,000 materials. These are excellent candidates for future high-efficiency solar cells. The researchers were thus able to show that the use of ML can significantly accelerate the discovery and validation of new photovoltaic materials.

  • Timber as a key building material for the development of urban areas

    Timber as a key building material for the development of urban areas

    Efficient use of energy and climate protection in buildings
    In view of the high energy consumption of buildings and their contribution to CO2 emissions, it is crucial to reduce energy requirements both during the construction phase and during the use of buildings. Thanks to its CO2-storing nature and efficient production methods, timber construction makes a significant contribution to reducing so-called grey energy.

    Modernisation and renovation of the building structure
    Many buildings in Germany are over 25 years old and need to be modernised and renovated in terms of energy efficiency. Timber construction offers innovative solutions here, such as adding storeys for efficient space utilisation and redensification, combined with an improved energy balance. Increasing urbanisation and rural exodus require intelligent building concepts in cities.

    Urbanisation and the role of timber construction
    Timber construction is proving to be the ideal solution for vertical and horizontal redensification. Thanks to its low weight and high degree of prefabrication, timber construction is particularly suitable for use in densely built-up metropolises.

    Timber construction is more than just a traditional construction method – it is an answer to the pressing questions of our time regarding climate protection and sustainability. Similar to concrete and steel at the beginning of the 20th century, timber construction has the potential to solve future construction tasks efficiently and sustainably and thus contribute to a more sustainable design of our urban landscapes.

  • Hybrid construction methods using wood, concrete and steel

    Hybrid construction methods using wood, concrete and steel

    Integration and connection technologies
    A significant challenge in hybrid constructions lies in the integration of different materials. When joining wood and concrete, special fasteners must be used to take into account the different properties of the materials, such as the moisture sensitivity of wood.

    Developing an understanding of mixed-structure components
    Hybrid components combine two or more materials that are carefully selected for their specific properties. An example of this is the combination of concrete, which can absorb compressive forces, and steel, which is responsible for tensile forces. This combination results in innovative constructions that could not be realised with the individual materials alone.

    Applications in the field of prefabricated components
    In the field of prefabricated construction, hybrid construction methods are used in particular for the production of large and heavy components. Here, the components are first manufactured separately and later joined together to form a complete unit. This approach enables a more flexible design and simplifies transport and assembly.

    Revolutionary combinations for ceilings
    Innovative ceiling constructions with a sandwich cross-section use hybrid technologies to produce robust yet lightweight components. This advanced technology allows the integration of installation systems and contributes to the energy efficiency of the building.

    Combining wood and concrete
    The combination of wood and concrete in ceiling structures offers the opportunity to combine the strengths of both materials and compensate for their weaknesses. Wood can take on the load-bearing role, while concrete is used for sound insulation and the integration of heating or cooling systems.

    Innovative advances in the future
    The further development of hybrid construction methods strives to enable more efficient, more cost-effective and more environmentally friendly construction techniques. This includes improved manufacturing processes, increasing load-bearing capacity and speeding up the construction process. Overall, hybrid construction represents a forward-thinking approach to construction that combines the benefits of different materials to create efficient, sustainable and aesthetically pleasing structures.

  • Vaud plans electricity autonomy by 2035

    Vaud plans electricity autonomy by 2035

    The study presented by Isabelle Moret, Head of the Department of Economy, Innovation, Employment and Heritage (DEIEP), shows encouraging results on the photovoltaic potential of the roofs and façades of Vaud cantonal buildings. In the presence of Pierre de Almeida, Director General of Real Estate and Heritage, and Camille Orthlieb, Head of Sustainable Construction at the DGIP, it became clear that the cantonal administration can achieve electrical autonomy by 2035 by producing the equivalent of 23 GWh of electricity annually.

    Comprehensive photovoltaic installation
    Since the early 2000s, almost 19,800 m² of solar panels have been installed on the roofs of the cantonal administration’s buildings. This area is to be increased to around 100,000 m² by 2035. All new buildings will be equipped with photovoltaic systems so that they produce as much or even more energy than they consume. At the same time, a building refurbishment programme aims to reduce electricity consumption by around 30 % through energy optimisation.

    Responsibility and leading by example
    Isabelle Moret emphasises the importance of these measures: “Thanks to the efforts of our teams for the massive expansion of photovoltaic systems, we should achieve electrical autonomy by 2035. The Vaudois state is thus demonstrating its responsibility towards the challenges of sustainability and serving as a role model for energy consumption in the property sector.”

    Financing and project coordination
    Over CHF 18 million will be made available for the implementation of this project in order to finance both the expansion of the solar installations and the reduction in electricity consumption. Implementation requires close collaboration between the Directorate-General for Property and Cultural Heritage (DGIP), the Department for the Preservation of Historical Monuments, the Directorate for Energy (DGE-DIREN) and the Directorate for Resources and Natural Heritage (DGE-DIRNA).

    Future prospects
    In addition to the cantonal administration, the University of Lausanne (UNIL) and the Lausanne University Hospital (CHUV) are also evaluating their photovoltaic potential in order to increase their energy independence. These measures emphasise the canton of Vaud’s commitment to driving forward the energy transition and achieving long-term sustainability goals.

  • A balancing act between aesthetics and functionality – façade greening

    A balancing act between aesthetics and functionality – façade greening

    The greening of buildings has been an integral part of architectural design since ancient times, from the Hanging Gardens of Semiramis to the green façades of modern metropolises. Today, green façades are not only used for aesthetic enhancement, but also for practical benefits: They improve the microclimate, provide protection against heat, filter fine dust, promote biodiversity and have a sound-absorbing effect. They also protect the building from the weather and potentially increase the property value.

    Challenges and solutions
    Despite the obvious benefits, there are legitimate concerns about potential damage to the building fabric caused by plant roots or moisture. However, modern greening systems, such as wall-mounted and ground-mounted techniques, offer solutions that minimise the risk. Wall-mounted systems, including linear, modular and flat designs, allow precise control over growth and water supply and are particularly suitable for new buildings. The choice of plants depends on the local conditions and the chosen system, with self-climbers and scaffold climbers being popular options.

    Future prospects
    Careful planning is essential for the successful integration of façade greening into the urban environment. In addition to the aesthetic component, functional aspects such as fire protection and maintenance must also be taken into account. Cooperation between architects, urban planners and building owners plays a decisive role in sustainably utilising the many benefits of façade greening and designing urban living spaces for the future.

  • Innovation and networking in the Swiss electrical industry

    Innovation and networking in the Swiss electrical industry

    The newly launched ineltec 2024 offers a platform for over 140 exhibitors to showcase their latest products and services in the fields of electrical engineering, building automation, e-mobility and more across 11,000 square metres of exhibition space. The trade fair not only attracts a large number of experts, but also decision-makers from the entire industry who are looking for innovative solutions and sustainable technologies. The topics of e-mobility and smart building technologies are a particular focus, as these areas are expected to undergo decisive developments in the coming years.

    Interactive platforms for professional dialogue
    In addition to the traditional trade fair experience, ineltec reloaded also offers digital access via its content platform ineltec.ch, where exhibitors and visitors can network and gather information in advance. In addition, the two marketplaces with bistros and an interaction zone ensure a lively exchange and offer space for daily events such as innovation pitches and moderated discussions. These formats are designed to provide participants with new ideas and practical knowledge for their day-to-day work.

    Focus on young talent and networking
    Another focus of ineltec 2024 is the promotion of young talent and networking among industry participants. The events, such as the start-up pitches and after-work events, not only provide a platform for new ideas, but also offer valuable networking opportunities. The aim is to build a bridge between established companies and innovative start-ups and at the same time actively involve young talent in the industry.

    Future-oriented discussions and further training
    ineltec 2024 also places a strong focus on further training and discussions on key industry topics such as the integration of AI in building automation and the impact of ESG directives on electrical engineering. By participating in these round tables and presentations, trade visitors will gain valuable insights into the future development of the electrical industry and can thus prepare themselves for the challenges ahead.

    Ineltec 2024 promises to be an unmissable event for all electrical industry professionals, providing not only a showcase for technological innovations, but also a central platform for professional exchange and training.

  • Environment, costs and aesthetics: a comparison of concrete and wood

    Environment, costs and aesthetics: a comparison of concrete and wood

    Pro wood: the sustainability and warmth of wood
    Wood, a natural and regenerative material, has been used in construction for thousands of years and is currently experiencing a revival in modern architecture, particularly in the area of sustainability and environmental protection. As it grows, wood binds CO2, which can help to reduce carbon dioxide emissions and thus counteract climate change. In addition, wood offers a warm and inviting aesthetic that is appreciated in many design concepts.

    Pro concrete: robustness and durability
    Concrete, a mixture of cement, water, sand and rock, is characterized by its remarkable strength and durability. It is highly resistant to fire, water and pests, making it a popular building material for a wide variety of structures such as high-rise buildings and bridges. In addition, concrete has excellent sound-absorbing properties and can be shaped into any desired form, which underlines its versatility.

    Contra wood: Wood used in construction is more susceptible to fire, pests and moisture. Special measures are therefore required to protect and maintain it.

    Contra concrete : The production of concrete is very energy intensive and results in a significant amount of CO2 emissions, which raises concerns about its environmental impact.

    The decision between concrete and wood depends on several factors, including the specific requirements of the project, environmental impact, cost and desired aesthetics. Concrete is prized for its strength and durability, while timber offers benefits in terms of sustainability, carbon footprint and natural beauty. Careful consideration of these characteristics is critical to making an informed decision that meets both the short-term needs of the project and the long-term goals of sustainability and environmental protection.

  • IWB leaves the energy crisis behind in terms of profit

    IWB leaves the energy crisis behind in terms of profit

    IWB increased its turnover by 11 per cent to CHF 1,265 million in 2023, a new record. According to a statement from the Basel-based energy supplier, this was due in particular to higher revenue from electricity supply on the free market, the growing solar business and the increase in gas tariffs at the end of 2022. At CHF 128 million, profit returned to the level before the energy crisis. it had totalled CHF 127 million in 2021 and had shrunk to CHF 58 million in 2022.

    However, at CHF 721 million, the procurement costs for energy were only slightly below those of the previous year, when they totalled CHF 738 million. By comparison, procurement costs in 2021 were still at CHF 363 million. The purchase prices for electricity in 2023 were only slightly below the previous year’s level, while those for gas were even higher.

    At 201 million, IWB invested more than ever before in 2023. This was primarily due to the expansion of district heating. IWB plans to expand the district heating network in Basel by 60 kilometres between 2022 and 2037. in 2022 and 2023, 7 kilometres were installed and 630 new connections were sold.

  • Company secures CHF 3 million for compressed air energy storage system

    Company secures CHF 3 million for compressed air energy storage system

    Green-Y Energy AG has successfully completed a financing round led by Swiss capital Global Impact Fund AG totalling CHF 3 million. The company, which specialises in compressed air energy storage and is based in Hasle near Burgdorf, intends to use the additional capital to further optimise its innovative storage technology and drive forward the marketing of the systems, CEO Rafik Barhoumi was quoted as saying in a press release. The solution is considered to be particularly sustainable as it uses compressed air to store photovoltaic electricity and also enables the supply of heating and cooling in buildings and processes.

    After a four-year development phase, a pilot system with a total capacity of 100 kilowatt hours was successfully launched in 2023, according to the press release. This can be used to optimise self-consumption in commercial areas. In residential and office buildings, the system could support space heating, water heating and cooling. Industrial companies could utilise the heat and cold generated in production processes.

    The system makes “economic and ecological sense if the storage of electrical energy is combined with the utilisation of heat or cold. This is why compressed air storage systems are particularly suitable for neighbourhoods, larger office buildings and industry,” says Christian Ochsenbein, an expert in storage technologies and head of the Swiss Battery Technology Center.

  • High-temperature solar power plants for continuous energy supply

    High-temperature solar power plants for continuous energy supply

    The centrepiece of 247Solar’s technology is a high-temperature heat exchanger developed by David Gordon Wilson, Professor Emeritus at MIT. By integrating this heat exchanger into a conventional turbine similar to a jet engine, efficient and emission-free energy generation becomes possible. The turbine utilises hot air, which is heated to around 1,000 degrees Celsius by solar energy, to produce both electricity and heat.

    Solar power plant with integrated energy storage
    An innovative component of this system is combined heat and power generation, supplemented by thermal energy storage. These store heat in solid materials, which can then drive the turbine when solar radiation is not available. This enables a continuous energy supply, regardless of the time of day and weather conditions. The generation capacity of the model presented is 400 kilowatts of electricity and 600 kilowatts of heat.

    The modular design of the system offers a wide range of possible applications, especially for remote or self-sufficient communities. This technology is ideal for combining with other renewable energy sources such as wind power to provide a holistic and sustainable energy supply.

    Bruce Anderson, Managing Director of 247Solar, emphasises that the main aim of developing this system was to overcome the intermittency issues of conventional renewables. The ability to provide uninterrupted energy represents a significant advance in the utilisation of renewable energy sources and could play a key role in the global energy future.

  • Partnership for a sustainable energy supply in Volketswil

    Partnership for a sustainable energy supply in Volketswil

    Energie 360° and Vantage Data Centres have entered into a partnership to set up an energy network. The data centre operator based in the US state of Colorado is planning to build a new data centre campus in Volketswil. According to a press release, the planned utilisation of waste heat at the new site will create the “ideal energy source for an energy network”. “We are delighted about this partnership and the fact that we can make a contribution to the decarbonisation of the energy system,” Wolfgang Zepf, Country Manager of Vantage Switzerland, is quoted as saying.

    Construction of the energy centre is scheduled to begin in summer 2025. From the end of 2028, 70 megawatts of neutral thermal energy are to be generated for 7,000 households in the municipalities of Volketswil, Greifensee, Schwerzenbach and Effretikon.

    Consumers will probably not have to wait that long. In order to be able to supply heat from the energy network as soon as possible, work has begun on creating a climate-friendly interim solution, according to the statement: “In order to utilise synergies with other construction work, Energie 360° is already building part of the transport pipeline between Volketswil and Effretikon. The first properties could be supplied with climate-friendly heat as early as the end of 2026.

  • A new home for families and creativity in Leutschenbach

    A new home for families and creativity in Leutschenbach

    The centrepiece of the housing estate consists of two U-shaped building complexes that are open to the green space and are complemented by pavilion buildings in the inner courtyard. This arrangement creates a lively, communal courtyard that houses kindergartens and communal spaces, making it a social meeting point.

    The housing estate offers a variety of 2- to 6½-room flats as well as special studio and communal flats to fulfil a wide range of living requirements. Particular attention is paid to spacious family flats and creative spaces that enable flexible and innovative living.

    Sustainability and energy efficiency are the focus of the housing estate. By building to Minergie-P-ECO and Minergie-ECO standards and utilising renewable energy sources for heat and electricity, it makes an important contribution to climate protection. The large-scale installation of photovoltaic modules ensures an environmentally friendly power supply.

    The design of the outdoor facilities promotes biodiversity and improves the microclimate in the neighbourhood. The upgrading of the green spaces along the Riedgraben and the “Inner Garden Leutschenbach” connecting the neighbourhood create natural recreational areas that offer residents a high quality of life.

    The Leutschenbach housing estate is an example of the successful combination of urban living, social mixing and ecological responsibility. It plays a key role in the development of Leutschenbach into an attractive and lively neighbourhood that meets the requirements of a modern, sustainable lifestyle.

  • Greencity Vergé sets new standards in sustainability

    Greencity Vergé sets new standards in sustainability

    Vergé is more than just a residential project, it is a response to the pressing issues of urban coexistence and ecological responsibility. Located in the south of Zurich on a former industrial site, Vergé stands for the transition to a new understanding of housing that both takes into account the needs of its older residents and actively contributes to the quality of urban life.

    Vergé’s design combines modern architecture with ecological sustainability. By using renewable and lightweight materials, the project not only sets design accents, but also makes an important contribution to reducing the ecological footprint. The design of the inner courtyard as a social meeting place and the careful selection of planting promote biodiversity and offer residents a place of retreat in harmony with nature.

    An often underestimated lever lies in the choice of materials for the interior walls. According to Lennart Rogenhofer, Chief Climate Officer at Losinger Marazzi AG, using non-load-bearing interior walls made of lightweight construction instead of concrete can lead to a reduction in CO2 emissions of around 50%. Similar savings can be achieved if a wooden façade is used instead of a concrete and plaster façade. This is in line with the aim of using sustainable and minimally processed raw materials. Losinger Marazzi has also decided to use CO2-reduced concrete in its projects as far as possible. The reduction in grey emissions with a slimmer supporting structure, which minimises the amount of concrete by optimising the slab thicknesses and column grids, is difficult to quantify. Rogenhofer explains: “This is because no ‘non-optimised’ project exists as a comparison.”. Greencity, with the last building site Vergé, impressively demonstrates that the property sector plays a key role in achieving the climate targets. Through the use of heat recovery technologies and integration into the local heating network, the aim is to achieve a largely autonomous energy supply, with certification in accordance with the SNBS Gold Standard.

    By focussing on sustainable and energy-efficient construction, not only can the quality of life of the residents be improved, but a decisive step towards a more sustainable future can also be taken.

    The project is being built by Losinger Marazzi, which has positioned itself as a pioneer in sustainability in the property and construction industry for almost 20 years and is consistently implementing its climate strategy, which follows the strategy of its parent company Bouygues Construction. The company has been SBTi certified since the end of 2023 and remains a leader in sustainability. This certification confirms that the company’s own CO2 reduction targets for direct and indirect corporate emissions (incl. Scope 3) have been calculated in accordance with international standards (GHG Protocol) and are in line with the Paris climate targets. An external, independent auditing company also verifies that the certified companies achieve their targets not through CO2 offsetting, but through actual CO2 reduction. For this reason, a CO2 reduction pathway was already drawn up in 2021 to guide strategic decisions.

  • Installation work for smart meters

    Installation work for smart meters

    Cablex, the Gümligen-based specialist for network infrastructure, has been selected as BKW ‘s contractual partner in a tender. According to a press release, Cablex will be responsible for the so-called smart meter rollout for BKW. This involves the replacement of 400,000 electricity meters with modern smart meters. Cablex, a wholly owned subsidiary of Swisscom, will install 500 new Kamstrup OMNIPOWER smart meters every day. The campaign is intended to contribute to the Energy Strategy 2050.

    Cablex was selected by BKW because the company has expertise in the implementation of nationwide ICT and smart infrastructure projects, including relevant experience with smart meter solutions. According to the press release, the changeover should be less disruptive for customers: the electricity will be switched off for around 15 minutes to replace the meters and the entire installation will take around one hour.

  • New procurement hub for floor coverings opened in Lucerne

    New procurement hub for floor coverings opened in Lucerne

    Mohawk, which claims to be the world’s largest manufacturer of floor coverings and is based in the US state of Georgia, has established a centre of excellence for its procurement activities in Lucerne. According to a press release, the company intends to increase its presence in the DACH countries. With its central location, Lucerne offers favourable opportunities to optimally organise and exploit all supply chains in terms of the movement of goods and services, according to the press release.

    Mohawk has already begun recruiting local employees to build up the team for the new competence centre. This process will continue, according to the press release.

    Mohawk sells its products in 170 countries worldwide, with around 30 per cent of its trade being handled in Europe. Its products include floor ceramics, wood and parquet flooring as well as vinyl products and carpets. The best-known names under the Mohawk umbrella include Marazzi, Ragno, EmilGroup, Kai, Quick-Step, Pergo, Moduleo, Unilin Panels and Unilin Insulation.

  • New commercial property with innovative energy technology

    New commercial property with innovative energy technology

    Immatica AG was granted planning permission for a commercial building on the site of Matica AG in Kaltenbach, to which it belongs, at the beginning of 2024. Matica AG specialises in the manufacture of energy-efficient storage tanks and the construction of special containers. Post AG will be the tenant of the 1,500 square metre new building from the beginning of 2025, as the previous site in Stein am Rhein SH has become too small, according to a press release.

    The flat roof will be equipped with a 1000 square metre photovoltaic (PV) system. A new type of storage technology will also be able to supply the building with solar energy in winter. With a sorption heat pump (SWP), the potential of solar energy can be stored for any length of time using a chemical process. The reversal process produces heat that can be used for heating in winter. The SWP solves several challenges of the energy transition: From the system operator’s point of view, it increases the PV system’s degree of self-utilisation and thus better cushions energy price fluctuations, according to the press release. It also helps to reduce seasonal fluctuations in the electricity grid. This relieves pressure on the grid and reduces the need for grid expansion. The use of the PV system with an annual output of around 215 kilowatt peak could save 33 tonnes of CO2 per year.

    Post AG wants to deliver all its letters in a climate-neutral way by 2030. The electricity generated by the PV system will be used to power all electrical systems in the building as well as the electric charging infrastructure for the electric vehicles. The SWP in Kaltenbach is the second pilot plant to be realised by Matica AG in collaboration with Lucerne University of Applied Sciences and Arts and Helbling Technik AG. In summer 2024, the first system will go into operation at the carcass collection centre in Frauenfeld.

  • Sustainable infrastructure renewal in the canton of Vaud

    Sustainable infrastructure renewal in the canton of Vaud

    The Schaan-based Hilcona Group is planning to invest in modernising the infrastructure at its Orbe site in the canton of Vaud. According to a press release, pipework, chillers and air compressors are to be replaced. The renovation will be carried out in such a way that the waste heat from the chillers will be used to heat water in the company once the construction work is complete. The hot water will be used for the daily cleaning work at Hilcona. According to the company, the new water heating system will save two thirds of the amount of natural gas required. CO2 emissions will also be reduced accordingly.

    “The overhaul of this chiller is another important step on our path to greater sustainability,” Lionel Monteiro from Hilcona’s Engineering department in Orbe is quoted as saying in the press release. “The CO2 footprint of the entire company can be further reduced by utilising waste heat,” adds Andrea Gerber, Head of Sustainability at the Hilcona Group.

  • Leading by example: circular building in the city of Zurich

    Leading by example: circular building in the city of Zurich

    The circular economy is an important lever for achieving the political net-zero targets. Like many other cities around the world, Zurich is also committed to the circular economy: in 2022, a strategy for the circular economy was adopted with “Circular Zurich”. in 2023, Zurich became the first Swiss city to sign the “Circular Cities Declaration”.

    The intelligent use of resources is particularly important in construction. With the “Charter for Circular Construction”, politicians and businesses set an example in 2023 and made a joint commitment to conserving primary resources and landfill space and reducing CO2 emissions from their own construction activities.

    Initial findings from two pilot projects
    But how do the political commitments affect specific construction projects? What challenges does circular construction pose? And how are the planning and construction processes changing? The City of Zurich’s Office for Buildings is gaining answers to these questions through two pilot projects.

    The city gained initial experience with the procurement, storage and processing of reused building components during the renovation of the Mööslistrasse 2023 kindergarten (Bischof Föhn Architekten, Zurich). Washbasins and toilets were dismantled, cleaned and refurbished on site. Plant troughs from the balconies were reused as outdoor space boundaries. Where possible, the built-in furniture was sourced from the city’s own stock. Thanks to component screening, steel beams, wooden pergolas, fire doors and kitchen elements from other buildings were identified, dismantled and reinstalled. So-called “component hunters” were deployed for everything that was not found in the city’s used parts warehouse.

    The second pilot project, the new “Juch-Areal” recycling centre, is much more comprehensive. The Office for Buildings launched an architectural competition with re-use requirements for the project in 2022. The competition participants were able to use a digital catalogue of components or use other available components from non-urban sources for their designs. The buildings also had to be designed in such a way that they could later be used as a component mine themselves (design for disassembly).

    The projects submitted show that it is possible: Yes, it is possible. The jury was particularly impressed by the high quality of the competition entries, which were created despite – or perhaps thanks to – the new specifications. The building material of the winning project by Graber Pulver Architekten AG (Zurich) dismantles the hall of the previous recycling centre and rebuilds it at the new location with only minor adjustments. Disposed books, magazines and clothes are used as insulation material. Sheets of recycled glass and aluminium, old kitchen covers, doors and table tops protect the façade from the weather. Discarded scaffolding is turned into storage shelves.

    It is in the nature of things that pilot projects precede a standardised introduction on a broad scale. This is also the case with circular construction. The realisation of the two projects in Zurich shows that many questions still need to be clarified: How can components be catalogued? How can availability be checked? Where will they be stored? Who assumes legal liability?

    The planning and construction processes will change as a result of cycle-orientated construction, because the component mines must be known as early as possible, preferably at the beginning of the planning phase. Building Information Modelling (BIM) facilitates the reuse of components, the planning of their dismantlability and the development of future component mines.

    Significant savings in indirect greenhouse gas emissions in the pilot projects
    The pilot projects show that this approach is worthwhile. According to a subsequent calculation, the consistent reuse of building components saved a good 30% of greenhouse gas emissions during the renovation of the Mööslistrasse kindergarten. Current calculations even predict a 40% saving in greenhouse gas emissions for the Juch-Areal recycling centre compared to a conventional new building.

  • Continuation of the Basel region’s energy package planned until 2025

    Continuation of the Basel region’s energy package planned until 2025

    In order to ensure the continuity of the Basel-Landschaft energy package, the cantonal government has proposed an increase in the expenditure authorisation and a supplementary credit for 2024 to the cantonal parliament. This procedure is intended to ensure that the programme to promote energy-efficient building renovations and the use of renewable energies in the building sector can continue seamlessly. A supplementary credit of CHF 2.28 million has been requested for 2024, and the total expenditure authorisation until the end of 2025 is to be increased to CHF 42.16 million.

    The energy package has proven to be particularly effective thanks to the high willingness of building owners to invest. Despite demand stabilising at a high level after a record year in 2022, the subsidy programme remains very effective in an intercantonal comparison. These results were presented in detail in the latest interim report from the cantonal government to the cantonal council.

    Due to the current financial bottlenecks, the cantonal government is planning a moderate reduction in contribution rates from 1 January 2025. This adjustment reflects the above-average rates compared to other Swiss cantons and will be cushioned by the recently introduced energy premium, which offers income- and asset-based support. At the same time, the new national impulse programme, which will be launched at the beginning of 2025, will offer further financial support for the conversion of heating systems and comprehensive renovation of building envelopes.

    For the next planning periods from 2026 to 2030, the Government Council is preparing a separate bill based on the findings of the 2022 energy planning report and other parliamentary mandates. This initiative is intended to further strengthen the focus and effectiveness of the funding programme and adapt it to the dynamic needs of the energy market.

    Finally, based on the Cantonal Energy Act, the interim report emphasises the importance of regularly reviewing and adapting the support measures in order to effectively support CO2 reduction and meet legislative requirements. The cantonal government remains committed to a sustainable and energy-efficient future for Basel-Landschaft.

  • Canton of Zurich promotes electromobility with over 52,500 parking spaces

    Canton of Zurich promotes electromobility with over 52,500 parking spaces

    Since the introduction of the charging infrastructure funding programme, the canton of Zurich has taken decisive steps towards the electrification of transport. The programme, which runs until the end of 2026 and has a funding pot of CHF 50 million, has already secured over CHF 18 million in funding to equip car parks with charging stations. So far, over 52,500 car parks have been equipped for electric vehicles, which is a significant boost for electromobility in the canton.

    Construction Director Martin Neukom is delighted with the great response: “The strong demand for the funding programme confirms our commitment to a sustainable mobility future. The support makes it easier for many people to switch to electric vehicles and helps to reduce dependency on fossil fuels.”

    The programme not only supports private individuals, but also companies and municipalities. Over 800 applications for funding for fleet parking spaces have already been submitted. In addition, more and more municipalities are utilising the funding opportunities to develop their electric mobility concepts. This includes feasibility studies and location analyses for public charging infrastructure. Some municipalities have already expressed an interest in installing public charging stations in blue zones.

    Carmen Walker Späh, Director of Economic Affairs, emphasises the ecological benefits: “Our funding programme makes a significant contribution to reducing environmental pollution and increasing energy efficiency in the canton. As the transport sector is responsible for around 40 per cent of greenhouse gas emissions in Zurich, this is an important step towards climate-neutral mobility.”

    In view of the high demand, the funding pot could potentially be exhausted before the planned end of 2026. The canton plans to continue to monitor developments closely and provide regular updates on the status of the programme. A detailed presentation of the programme’s results and progress is planned for the second half of 2024.

  • “Fischermätteli” first site with Minergie certificate

    “Fischermätteli” first site with Minergie certificate

    The innovative and long-term residential construction project Fischermätteli was successfully completed by Strüby Unternehmungen in autumn 2023 after a staggered construction period of around three and a half years. The ten apartment blocks with a total of 168 condominiums were built on a former commercial site in Burgdorf BE. Over 6600 m3 of Swiss wood was used in the construction, which serves as a natural CO2 reservoir and has an excellent ecological footprint thanks to the short transport routes.

    One hundred per cent of the energy requirements for the entire site are covered by renewable sources. The electricity comes from the PV systems on the roofs of the buildings, while the heat for heating and hot water comes from a heating centre that runs on Swiss pellets. The well thought-out mobility concept is based on electric mobility, car sharing, bicycles and public transport. A co-working space supports working from home and thus indirectly relieves traffic congestion. In addition, the environmental design based on the sponge city principle ensures natural and efficient cooling in summer and turns the project into a true biodiversity hotspot thanks to the wide variety of native plants.

    Label with high requirements
    In April 2024, the largest real estate project to date was awarded the coveted certificate by the Minergie association: the Minergie-Areal label, having already been awarded the Minergie-A-ECO label. The new standard, which has been in place since September 2023, is supported by various organisations such as the Minergie Association, the cantons, the business community and the Swiss Federal Office of Energy. The Minergie site is characterised by minimal energy consumption, minimised greenhouse gas emissions during construction and operation and maximum self-sufficiency with renewable energies. The buildings have particularly efficient heat insulation and controlled air exchange. In addition, the outdoor space of the Minergie site is designed in such a way that climate resilience and quality of stay are increased, for example through green planting and shading options. Another advantage of the Minergie site is the promotion of climate-friendly mobility.

    The development in Burgdorf BE sets new standards in timber construction for flats. With 168 owner-occupied flats in ten apartment blocks, it is the largest construction project of its kind to combine Swiss timber and the Minergie-A-ECO standard. Sustainability aspects were at the centre of the project right from the start, which earned it the first Minergie-Areal certificate for a completed project.

    Thanks to the elegant timber façades, the ensemble blends in perfectly with its natural surroundings. The clearly defined meeting and play zones with village charm promote relationships between the residents. At the same time, the architecture ensures privacy and creates living spaces with ideal air, light and sound characteristics. Community-enhancing elements such as a spacious communal pavilion and the professional home office zone “fm produktiv” round off the offer.

    The flats offer 2.5 to 5.5 rooms and are designed for singles, couples and families of all ages. The floor plans are flexibly designed so that they can be adapted to future needs. From the ground floor upwards, the building was constructed using timber elements.

    The energy supply is consistently based on renewable sources. The electricity for the approximately 400 residents comes from the PV systems on the roofs of the apartment blocks (700 MWh/year). Heat is generated in a heating centre using Swiss wood pellets.

    The mobility concept focuses on cycling, public transport, electric vehicles and car sharing. Bicycle stands, charging stations, repair and cleaning areas are available. Residents can also use one of the two electric cars from the neighbourhood’s own car-sharing scheme via an app or conveniently use the bus, which runs every half hour from the neighbourhood to Burgdorf. Demand for the condominiums and rental flats was very high right from the start. All 168 flats were sold or rented months before completion. The fair sales and rental prices certainly contributed to the great success, e.g. a flat with 4.5 rooms was already available from CHF 610,000 (minus Minergie subsidies from the Canton of Berne).

  • Emergency power for automatic doors: New battery backup solution

    Emergency power for automatic doors: New battery backup solution

    According to a press release,Dormakaba is launching a fire-tested battery backup for uninterruptible power supply in door automation. The installation kit for rechargeable lithium iron phosphate batteries (LiFEPO4) has been specially developed for the ED 100/250 proprietary product. In the event of a power failure, the battery backup switches on and ensures continuous functionality of the automatic swing door system.

    Extensive scientific tests carried out by the Swedish state research institute Research Institutes of Sweden have ruled out any safety concerns, according to the statement, adding that the solution has demonstrated its added value in terms of safety and reliability “under very demanding test conditions”. This involved integrating an automatic door system on a fully equipped fire door and creating a worst-case scenario.

    “With the launch, we have developed a competitive product that offers customers significant added value in terms of security and sustainability,” Magin Guardiola, Chief Innovation Officer at dormakaba, is quoted as saying. Other advantages cited include lower installation costs and less need for expensive cable connections to external units.

    The locking technology company from Glattal intends to grow in Scandinavia with the building management solution. The product will be launched in Denmark, Finland, Norway and Sweden in April and May.

  • Building materials and recycling industry join forces

    Building materials and recycling industry join forces

    The trade association arv Baustoffrecycling Schweiz and the FSKB Fachverband der Schweizerischen Kies- und Betonindustrie are joining forces for a sustainable future for the construction and recycling industry. They have joined forces to form the Swiss Building Materials Recycling Association, the new association announced in a press release. Baustoff Kreislauf Schweiz represents more than 1000 Swiss gravel quarries, concrete plants and recycling centres and thus covers over 80 percent of companies active in the extraction and recycling of mineral building materials.

    Baustoff Kreislauf Schweiz is convinced that the future belongs to the circular economy. The association wants to use innovative technologies and methods in its own sector to extract mineral building materials in an environmentally friendly way and keep them in circulation. Gravel pits are to be renaturalised as habitats for flora and fauna once gravel extraction has ended. In this way, nature is “naturally integrated into the circular economy”, according to the press release.

    At the same time, Baustoff Kreislauf Schweiz is focussing on supplying Switzerland with gravel and concrete. The large and localised areas required for the processing of mineral building materials are becoming increasingly scarce due to protection regulations and other uses, explains the association. It therefore wants to work to “ensure that the supply of high-quality building materials to construction sites remains guaranteed in the future and that these are professionally processed for reuse”.

  • SAK and NORM work together for greater energy efficiency

    SAK and NORM work together for greater energy efficiency

    The energy supply company St.Gallisch-Appenzellische Kraftwerke AG(SAK) is entering into a partnership with Norm Technologies(NORM) from Zurich. NORM determines the energy efficiency of buildings as well as their CO2 emissions and refurbishment options. NORM has set itself the goal of reducing greenhouse gas emissions in the building sector.

    “This partnership with NORM is in line with our commitment to promoting innovative solutions that help our customers to increase their energy efficiency and make an active contribution to environmental protection,” said Philipp Inderbitzin, Head of Energy Solutions at SAK, in a press release. The collaboration will enable SAK to offer its customers a holistic energy analysis for their properties.

    The first step of the analysis is carried out digitally and free of charge via the SAK website. In a second step, energy experts prepare a more in-depth analysis and show options for a customised renovation roadmap. With NORM’s expertise, SAK can advance its goal of achieving net-zero greenhouse gas emissions by 2040, which in turn supports the goals of the Swiss Climate and Innovation Act, the press release explains. In return, “working with an established partner like SAK enables us to come one step closer to our vision of decarbonising the real estate sector”, according to NORM founder Gian Reto à Porta.

  • Realisation of an extensive solar project at the production site of a pharmaceutical manufacturer

    Realisation of an extensive solar project at the production site of a pharmaceutical manufacturer

    The pharmaceutical manufacturer Takeda is currently building a photovoltaic system at its production site in Pierre-à-Bot in Neuchâtel. The solar panels are being installed on an unused plot of land and on the roofs of the car parks. The system will have a capacity of 3.7 megawatts per year and generate 4 gigawatt hours of electricity. This corresponds to 25 per cent of the annual demand. Commissioning is planned for the beginning of October 2024. The investment amounts to CHF 5 million.

    With this solar project, the Japanese pharmaceutical and vaccine manufacturer with its Swiss headquarters in Opfikon is making an important contribution to decarbonisation, according to its press release. “We are delighted to have been able to realise this ambitious project,” said Violaine Blétry-de Montmollin, city councillor for Neuchâtel. “It fits in perfectly with our energy concept.”

    Takeda is aiming to achieve net zero emissions worldwide by 2035 for its own activities. As part of this, the company is currently pursuing around ten projects at its site in Neuchâtel. In addition to electrification, they are dedicated to heat recovery, the avoidance of fossil fuels and refrigerants and biodiversity.

    Takeda acquired the production site in Neuchâtel five years ago as part of the takeover of its Irish competitor Shire. The site, which employs almost 700 people from 20 different countries, has specialised in the manufacture of medicines for the treatment of blood clotting disorders (haemophilia) for 25 years. They are supplied to over 80 countries.

  • Basel region becomes a hub for hydrogen

    Basel region becomes a hub for hydrogen

    H2-HUB Switzerland, a business association based in Basel and founded in February, wants to turn the Basel region into a hydrogen hub for the country. According to a press release, green hydrogen is to be produced using solar, water and wind energy and distributed throughout Switzerland. This should support the goal of making Switzerland climate-neutral.

    “The EU has been driving forward the development of a hydrogen economy for years,” said Dirk Mulzer, COO of Industrielle Werke Basel(IWB), in the press release. “Funding programmes have already been initiated throughout Europe. Switzerland must not miss the boat.”

    In February 2024, IWB, the petrol station operator Fritz Meyer AG/AVIA, GETEC, Port of Switzerland, the energy company VARO and the Basel Chamber of Commerce therefore founded the H2-HUB Switzerland association in Basel. The aim of the association is to develop the Rhine ports of Muttenz BL and Birsfelden BL as a centre for the production, import and distribution of hydrogen for Switzerland.

  • A step towards a fossil-free future

    A step towards a fossil-free future

    The city of Zurich’s energy planning envisages making better use of renewable energy sources in future. With an approval rate of 88 per cent, the voters of Zurich said yes to the CHF 128 million project loan for the Altstetten and Höngg energy network.
    The urban areas of Altstetten and Höngg offer ideal conditions for an energy network. They have a high heat consumption density and are close to the heat source, the Werdhölzli sewage treatment plant. The commissioning of the Altstetten and Höngg energy network makes it possible to utilise the previously unused heat potential of the Werdhölzli wastewater treatment plant.

    The temperature of the treated wastewater is between 11 degrees Celsius in winter and around 25 degrees Celsius in summer. Entsorgung + Recycling Zürich treats up to 80 million cubic metres of wastewater every year. Before the purified water flows into the Limmat, it passes through the waste heat utilisation building, where the heat is extracted. In the energy centre, heat pumps raise the temperature to the level required for useful heat.

    Another heat supplier is the sewage sludge utilisation plant, which is also located on the site. The waste heat generated during the incineration of the sewage sludge is a valuable source of energy. Verbund utilises both the direct excess heat from the sewage sludge utilisation plant and the condensation heat from the exhaust gases. As the sewage sludge utilisation plant has temperatures of 70 to 80 degrees Celsius, it can be fed directly into the system without having to go through a heat pump.

    In addition, the waste heat from ice production at the ZSC Lions’ new Swiss Life Arena is fed into the anergy network. From summer 2022, the Swiss Life Arena’s energy centre will produce cooling for the connected properties, which will be used to cool the offices and commercial premises. The cooling is produced using highly efficient heat pumps.

    The Altstetten and Höngg energy network consists of various sub-perimeters. The Höngg and Altstetten Nord areas are largely connected to the energy network. In the Höngg-Zentrum and Altstetten Ost areas, implementation will take place from 2023 to 2032.

  • CoolCity lake water network, an urban powerhouse

    CoolCity lake water network, an urban powerhouse

    As temperatures rise, Zurich is seeing an increase in the use of air conditioning systems, which significantly increases the city’s energy requirements. CoolCity is responding to this trend with an ambitious concept designed to sustainably cover the energy requirements for heating and cooling.

    A strategically positioned energy centre
    A 4,000 m² energy centre is being built in the heart of Zurich, in the ewz Selnau substation. This serves as a central interface for the efficient distribution of heating and cooling and is a key element of the city’s energy supply network. The project guarantees an optimum temperature supply for its users: 67°C for heating and around 12°C for cooling, directly from the lake water. Temperatures adjusted on site by heat pumps and cooling systems ensure maximum efficiency and comfort.

    A sustainable energy distribution system
    At the heart of CoolCity is a sophisticated system of primary and secondary circuits. This structure enables the flexible provision of heating or cooling and is supplemented by energy-saving freecooling in summer. It is not only a project for the present, but also a forward-looking step towards Zurich’s goal of achieving net-zero emissions by 2040. The use of deep water from Lake Zurich to heat and cool buildings reduces CO² emissions by an average of 80 per cent compared to fossil fuels.

    Overcoming challenges
    Despite widespread approval, ecological, legal and technical challenges must be overcome during realisation. Close collaboration between the experts at ewz, Anex and other stakeholders is essential in order to develop innovative solutions for civil engineering and the continuous energy supply.

    CoolCity is scheduled to go into operation in stages from 2031. This will allow the system to be adaptively optimised to meet Zurich’s changing needs. Through this development, Lake Zurich will take on a dual function: in addition to a local recreation area, it will become the basis for a sustainable energy supply for the city.

    CoolCity symbolises Zurich’s pioneering spirit and its efforts to create innovative solutions for a sustainable future. Through the intelligent utilisation of lake water for the city’s energy supply, the project sets new standards in ecological urban development.

  • Switzerland Innovation Park Biel introduces advanced CO₂ emissions management

    Switzerland Innovation Park Biel introduces advanced CO₂ emissions management

    At a time when reducing CO₂ emissions is a top priority, Switzerland Innovation Park Biel/Bienne (SIPBB) is launching a pioneering solution on the market. With the introduction of this technology, SIPBB is setting new standards in emissions management. This software uses real data instead of industrial averages to calculate the carbon footprint of products, enabling companies to reduce their emissions in a targeted manner.

    The implementation in the SIPBB offers industrial companies the opportunity to precisely quantify and verify the CO₂ values of each product. This is a crucial step in meeting the challenges of digital transformation and strict climate targets. Two specific use cases have been realised that show how the tool effectively links companies’ emissions with those from their supply chain to enable an accurate determination of their true carbon footprint.

    The SIPBB’s Swiss Smart Factory in Biel offers interested parties the opportunity to test the application and effectiveness of the Siemens solution under real-life conditions. Dr Dominic Gorecky, Director, explains: “Customers can directly experience how the technology not only generates verifiable CO₂ certificates, but also creates the basis for sustainable production processes.” A practical example of this is drone production, which demonstrates how the tool enables sustainable production from conception to the supply chain.

    In addition, interested industrial companies can book Marketplace services for various use cases and follow the certification process and data management. Stefan Schnider, Country Head of Siemens Digital Industries in Switzerland, emphasises: “The ‘Sustainability Journey’ is an integral part of our offering in the Swiss Smart Factory and is offered as a half-day workshop.”

    Connecting the operating technology in production and the IT systems to SiGREEN is essential to ensure an efficient flow of data and automated collection of CO₂ emissions at product level. The necessary expertise in data integration is provided by NTT Com and NTT DATA, who are long-standing partners in the field of IT/OT convergence.

    This SIPBB initiative, developed in close cooperation with Siemens Switzerland and other partners, marks an important step forward in the endeavour to reduce industrial emissions and helps Switzerland to make further progress towards its ambitious climate targets. A detailed presentation of the project is planned for the second half of 2024.

  • World’s largest electric melting furnace for stone wool in operation

    World’s largest electric melting furnace for stone wool in operation

    After a two-year construction period, the world’s largest electric melting furnace for stone wool was inaugurated today in Flums. This milestone marks a significant development for the Swiss stone wool producer Flumroc and emphasises its commitment to pioneering technologies. The new furnace runs entirely on electrical energy from Swiss hydropower, reducing CO2 emissions from the melting process by 80 per cent. This corresponds to an annual saving of around 25,000 tonnes of CO2, comparable to the emissions of 5,500 oil-fired households.

    The opening ceremony was attended by more than 100 guests from the worlds of politics and business, including Federal Councillor Albert Rösti, who emphasised the importance of this investment for energy efficiency and environmental protection. He emphasised that such projects are crucial for reducing CO2 emissions and protecting the environment.

    The electric melting furnace customised for the production facilities in Flums positions Flumroc as a pioneer in the stone wool industry. Damian Gort, Managing Director of Flumroc, explained: “With the world’s largest electric melting furnace, we are realising a technological feat that significantly improves the eco-balance of our products and makes an important contribution to an energy-efficient and sustainable building stock.”

    The investment in the Flums site reinforces Flumroc’s commitment to regional production and ecological sustainability. “It is neither sensible nor ecologically justifiable to transport the voluminous product over hundreds of kilometres. Only through domestic production can we really guarantee a closed cycle,” says Gort. Flumroc has been producing stone wool in Flums for over 70 years and, with 225 employees, is one of the most important employers in the region.

    The use of the new electric melting furnace makes Flumroc’s production process much more sustainable. Compared to conventional insulation materials, Flumroc’s Swiss stone wool now has the lowest greenhouse gas emissions from production to disposal. This consolidates Flumroc’s position as an environmentally conscious producer in the building materials industry.