Concentrating photovoltaic (CPV) systems offer a promising pathway for clean and efficient solar power generation by focusing sunlight onto high-efficiency multi-junction solar cells using optical elements such as Fresnel lenses. Fresnel lenses are an efficient tool for concentrating solar energy, which may then be used in a variety of applications. Larger acceptance angles, better concentration ratios with less volume and shorter focal length. Here is the unexpected kicker: a straightforward invention from the 1800s—first conceived for lighthouses to warn ships away from rocky shores—has now taken centre stage in this modern task. That piece of elegant engineering, the Fresnel lens, is, fundamentally, the reason certain solar setups. This work was supported in part by the Guangdong Rural Science and Technology Correspondent Foundation under Grant KTP20200221, in part by the National Natural Science Foundation of China (NSFC) under Grant 11775147, in part by the Guangdong Basic and Applied Basic Research Foundation under Grant. In the latter part of the 20 th century, an engineer named Mark O'Neill was among the first to see these lenses as a solution to the problem of costly photovoltaic cells, which convert sunlight into electricity. With Fresnel lenses to concentrate the light, a smaller cell area can generate the same. This study presents the development and validation of a high-efficiency optical interface designed for ultra-high-concentration photovoltaic (UHCPV) systems, with a focus on enabling clean and sustainable solar energy conversion. The components of the setup include an infrared t ermometer, heat pipes, a thermoelectric module, a platform, a water storage tank, a heat spreader plate, and a Fresnel lens.
