Switzerland is pursuing ambitious solar targets and is planning to increase PV electricity production fivefold. On sunny days, however, surpluses overload the grids, which is why the 3% rule allows distribution grid operators to throttle systems by up to 30 percent of their output without compensation. sun2wheel and convoltas are reversing this principle. They bundle PV systems into a virtual power plant and market the flexibility in Swissgrid’s balancing energy market. Instead of suffering losses, operators receive premiums for targeted feed-in reductions.<\/p>\n\n\n\n\n\n
20 percent increase in yield AI-controlled virtual power plant Grid stability meets solar yield What operators of photovoltaic systems previously saw as a nuisance is now becoming a lucrative business. With targeted throttling in the balancing energy market, a multiple of the usual feed-in tariffs can be achieved. The “Profit-Plus” model converts grid overloads into yield plus and accelerates the solar turnaround in Switzerland.<\/p>\n","protected":false},"author":2,"featured_media":146047,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"inline_featured_image":false,"footnotes":""},"categories":[22697,12482,12476,12483,22433],"tags":[12525,12526,12528,55927,55928,55929],"class_list":["post-146046","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company","category-energy","category-immonews","category-proptech-en","category-trends-en","tag-immoinvest-en","tag-immonews-en","tag-news-en","tag-photovoltaik-flexibilitaet","tag-regelenergiemarkt","tag-solarrendite"],"acf":{"bild_mit_ki_erstellt_worden":["Ja"],"lead":"What operators of photovoltaic systems previously saw as a nuisance is now becoming a lucrative business. With targeted throttling in the balancing energy market, a multiple of the usual feed-in tariffs can be achieved. The \"Profit-Plus\" model converts grid overloads into yield plus and accelerates the solar turnaround in Switzerland.","autor":"Quelle Swissbau","ort":"","bildunterschrift":"","bild_im_grid":false,"gallerie":"","newsim":"","zusammenfassung":""},"featured_image_src":"https:\/\/stage.immo-invest.ch\/wp-content\/uploads\/2025\/12\/immo-invest-energie-trends-proptech-unternehmen-schweiz-photovoltaik-flexibilitaet-regelenergiemarkt-solarrendite-336x168.png","_links":{"self":[{"href":"https:\/\/stage.immo-invest.ch\/en\/wp-json\/wp\/v2\/posts\/146046","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stage.immo-invest.ch\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stage.immo-invest.ch\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stage.immo-invest.ch\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/stage.immo-invest.ch\/en\/wp-json\/wp\/v2\/comments?post=146046"}],"version-history":[{"count":0,"href":"https:\/\/stage.immo-invest.ch\/en\/wp-json\/wp\/v2\/posts\/146046\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stage.immo-invest.ch\/en\/wp-json\/wp\/v2\/media\/146047"}],"wp:attachment":[{"href":"https:\/\/stage.immo-invest.ch\/en\/wp-json\/wp\/v2\/media?parent=146046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stage.immo-invest.ch\/en\/wp-json\/wp\/v2\/categories?post=146046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stage.immo-invest.ch\/en\/wp-json\/wp\/v2\/tags?post=146046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
<\/strong>In the current Swissgrid pilot project PV4Balancing, the system has been delivering impressive figures since June 2025. Operators generate around CHF 10 in additional income per installed kilowatt, which corresponds to a 20% increase in yield. Throttling only takes place for 4 to 8 hours a month, mostly at weekends or in changeable weather conditions. “Our customers earn more with flexibility than with pure feed-in,” emphasizes Fabian Gloor. More than 100 large-scale systems have already been contracted.<\/p>\n\n\n\n\n\n
<\/strong>The companies are the first providers to offer PV flexibility outside of the pilot on the balancing energy market. AI-based software recognizes surplus times, controls systems in minutes and integrates medium-sized systems without expensive sensors. “We network PV systems, storage systems and e-charging stations to create a flexible energy system,” explains CEO Sandro Schopfer. In future, small systems for single-family homes will also be included.<\/p>\n\n\n\n\n\n
<\/strong>The solution supports the 3% rule by automatically diverting production peaks to storage systems or e-vehicles. Grid operators receive stability, PV operators additional income and solar production grows without grid overloads. The “profit-plus” model shows how technological innovation<\/span> and market mechanisms are driving the energy transition forward. Flexibility is becoming the new currency that makes solar systems more economical and grid-friendly.<\/p>\n\n","protected":false},"excerpt":{"rendered":"