Researchers from the Korea Institute of Energy Research have developed a shingled photovoltaic module that can be combined with thermoelectric generators (TEGs) for efficient waste-heat energy recovery. The shingled cell technology increases light absorption and module reliability by eliminating soldered ribbons and reducing thermal stresses, improving efficiency and long-term reliability compared to standard interconnection approaches. The module architecture benefits TEG integration by increasing operating voltage, reducing output current, and minimizing resistive losses, ultimately enabling more efficient power extraction in PV-TEG hybrid systems. A custom experimental platform was developed to accurately characterize PV, TEG, and combined PV-TEG devices under controlled thermal and optical loading, revealing that optimal designs with low current and high voltage operation can significantly reduce power loss, with the new solar module concept showing promising results for field-scale thermoelectric coupling.
Author: Pv Magazine
-
Solar tracker pneumatic actuator design study improves efficiency up to 66.4%
A study in Iraq tested solar tracker pneumatic actuator design, resulting in efficiency increases of 62.3% and 66.4% on test panels for dual-axis solar trackers in harsh climates. The actuators, utilizing double-acting pneumatic cylinders, were found to be well-suited for urban, rural, and rugged isolated solar applications. Additionally, air spring actuation is being highlighted for its cost-effectiveness and simplicity, recommended for urban and rural solar projects in Australia as the country advances into the solar era.
-
Satellite breakthrough enables accurate panel-scale temperature mapping for solar farms
A Chinese research team has developed a novel panel surface temperature retrieval model using moderate-resolution thermal infrared satellite imagery to accurately estimate the surface temperature of photovoltaic panels in utility-scale solar farms. The method accounts for the three-dimensional structure of PV arrays, changes in panel area with viewing angle, and the low emissivity of PV panels. By separating PV modules from inter-row gaps within each satellite pixel, the researchers were able to isolate the radiative signal attributable to the PV modules, resulting in a more accurate retrieval of panel surface temperature. Improvements in satellite-derived thermal data accuracy have led to a 3-5% decrease in bias in photovoltaic (PV) power simulation, with a focus on understanding and incorporating shaded gaps between rows of panels. The new approach was presented in the International Journal of Applied Earth Observation and Geoinformation by scientists from various institutions in China.
-
Perovskite tandem PV for agrivoltaics
Researchers from Cornell University conducted a life-cycle assessment on integrating advanced perovskite tandem PV into agrivoltaic lettuce production in the US, comparing different technologies with conventional silicon PV. The study evaluated greenhouse gas emissions, water impacts, and potential benefits of agrivoltaics, showing that retrofitting US lettuce farmland with agrivoltaics could have significant environmental benefits. Next-generation agrivoltaics have the strongest potential in water-scarce regions like California's Southern Desert and Arizona, with responsible design transforming farmland into a platform for integrated food production, clean energy generation, and water conservation. The research, presented in a paper titled "Advancing Food-Energy-Water Sustainability with Scalable Perovskite Tandem Agrivoltaics" published in Nexus, highlights the potential of agrivoltaics to simultaneously produce food, generate clean electricity, reduce emissions, conserve water, and ease land-use competition.
https://www.pv-magazine.com/2026/06/17/perovskite-tandem-pv-for-agrivoltaics/
-
Pseudo-planar heterojunction organic solar cell achieves world record efficiency of 20.21%
A research team from China has proposed a novel interfacial buffering strategy for pseudo-planar heterojunction (PPHJ) organic solar cells (OSCs) to improve device stability and fabrication reliability. By incorporating a highly crystalline polymer called D18 as a buffer layer between the donor and acceptor layers, the PM6/D18/L8-BO-based device achieved a superior power conversion efficiency of 19.80%, surpassing conventional devices. Further modifications with a non-fullerene small-molecule acceptor led to an efficiency of 20.21%, one of the highest reported for PPHJ OSCs. The study, published in the Chinese Journal of Polymer Science, offers practical insights for enhancing device performance and morphology regulation in organic solar cells with controlled vertical phase separation morphology.
-
World’s largest solar-hydrogen-storage project goes online in China
China Energy Investment Corp (CHN Energy) has completed construction of the Guohua Rudong solar-hydrogen-storage integrated project in Jiangsu province, which includes a 400 MW coastal PV plant, a 60 MW/120 MWh battery energy storage system, and a green hydrogen production facility. This project, China's largest integrated solar-hydrogen-storage project, is expected to generate 468 GWh of electricity annually and aims to establish an integrated system linking renewable power generation, energy storage, hydrogen production, and downstream hydrogen use. Additionally, the project incorporates coastal ecological restoration measures and is part of China's third batch of large-scale wind and solar power bases.
-
Australian farmers call for on-farm electricification and clean tech support
The Farmers for Climate Action (FCA) report, Energy Sovereignty for Regional Australia, advocates for the switch to locally produced, lower cost energy and sustainable biofuels in the agricultural sector. It emphasizes the need for accelerating electrification of farm equipment, such as irrigation and processing machinery, to reduce costs and increase energy security. The report calls for sensible tax policy reform to drive electrification technology while protecting farmers and associated industries. Highlighting the feasibility of using solar PV and battery storage for electric tractors, the report suggests policy support and incentives to accelerate the shift towards more sustainable practices in agriculture. Overall, the shift towards clean energy and electric machinery is seen as a major opportunity to cut costs and increase resilience in the agricultural sector.
-
SNEC 2026 wrap-up: Storage, AI and back-contact are reshaping solar
SNEC 2026 showcased a shift in the solar industry towards a broader system conversation, focusing on storage, dispatchability, and grid stability, with solar-plus-storage systems taking center stage. The emergence of bifacial solar cell technology and artificial intelligence integration are driving the industry towards application-specific designs and higher-value frontiers. Despite challenges, the industry is evolving towards becoming a systems industry integrated with storage and software, with future competition focusing on efficiency, cost, dispatchability, system integration, service capability, and lifecycle performance. Solar is transitioning from a manufacturing industry to a systems industry, making it more complex and interesting to follow.
-
Solar-powered floating shellfish farming tested in French lagoon
A French consortium has launched the SolarinThau project in Thau Lagoon, southern France, which integrates floating solar panels with oyster farming to support the local shellfish industry and tackle energy and environmental issues. The prototype platform will undergo an 18-month trial period from July 2026 to December 2027 to assess its technical, environmental, and economic viability. The project is led by a consortium with funding from the French government and the Occitanie Region, showcasing a promising initiative in sustainable energy solutions.
-
Fraunhofer ISE achieves 34.4 efficiency for III-V germanium solar module
Germany's Fraunhofer Institute for Solar Energy Systems ISE has set a new record for power conversion efficiency of its III-V germanium solar module, increasing it from 34.2% to 34.4% using "shingle-matrix" technology and space-grade solar cells. This achievement was made possible by adapting triple-junction solar cell technology to the terrestrial solar spectrum and utilizing anti-reflective front glass structures supplied by Temicon. The key factor in this breakthrough was the use of shingle-matrix technology for interconnecting the solar cells, eliminating solder-coated copper ribbons, reducing shading, and increasing active area utilization. In addition, in July 2025, Fraunhofer ISE achieved 40% efficiency for an indoor III-V solar cell based on an indium gallium phosphide absorber, showcasing their commitment to advancing solar energy technology for a more sustainable future.