[21] EU Funding & Tenders Portal, Global Optimization of integrated PhotoVoltaics system for low electricity cost, https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/opportunities/projects-details/31045243/792059/H2020?order=DESC&pageNumber=1&pageSize=50&sortBy=title&keywords=%20photovoltaics&isExactMatch=true.