Climate Change Solutions Update

Author: Pv Magazine

  • How massive subsidies helped drive a 90% collapse in solar costs

    China has heavily subsidized its solar power-related manufacturing industries, investing $17.4 billion from 2010 through 2024, while OECD countries have only invested $3.9 billion over the same period. The price of electricity generated by solar panels has dropped by more than 90% during this time. In 2024, China supported over 500 gigawatts of output, with the U.S. and Europe deploying nearly $150 billion worth of solar power. Solar was the most subsidized industry, with $21 billion representing almost a fifth of the total value over the 2010 to 2024 period. The article also emphasizes the urgent need to address the pressing challenge of managing a warming climate that poses significant harm to humanity, with Americans dying from coal and gas air pollution as a result of solar panel bans, contributing to a global death toll climbing to millions.

    https://www.pv-magazine.com/2026/06/22/the-worlds-magical-21-billion-investment/

  • Chinese scientists unveil cable-supported mounting system for large-scale PV on complex terrain

    Researchers have developed a cable-supported photovoltaic structure (CSPS) for solar projects on challenging terrain, overcoming limitations of traditional ground-mounted PV structures. Inspired by bridge aerodynamics, the system splits a single cable truss into two parallel trusses to enhance torsional load-resisting mechanism. Key design parameters include cable sags, truss height, and cable pretensions, influencing structural behavior and stiffness. The system configuration improves torsional mode frequency and critical flutter wind speed, with added components like purlins and braces enhancing stiffness and vibration control. The study validated the proposed two-parallel cable truss system as a structurally efficient and aerodynamically robust solution for large-span CSPS designs in high-wind environments, providing a practical design framework for future large-scale solar infrastructure in challenging terrain environments.

    https://www.pv-magazine.com/2026/06/22/chinese-scientists-unveil-cable-supported-mounting-system-for-large-scale-pv-on-complex-terrain/

  • JinkoSolar achieves 34.82% efficiency for perovskite-silicon tandem solar cell

    Chinese PV module manufacturer JinkoSolar recently achieved a power conversion efficiency of 34.82% for a perovskite-silicon tandem solar cell, certified by China's Shanghai Institute of Microsystem and Information Technology. This breakthrough, credited to innovations in core technologies, marks progress in the industrialization of next-generation perovskite tandem technology. Longi currently holds the world record for perovskite-tandem solar cell efficiency at 34.85%, achieved in partnership with Soochow University. These advancements in efficiency are crucial for the development of more effective and sustainable solar energy solutions.

    https://www.pv-magazine.com/2026/06/19/jinkosolar-achieves-34-82-efficiency-for-perovskite-silicon-tandem-solar-cell/

  • Huawei’s FusionSolar9.0 solution aims to redefine optimal LCOE for utility-scale solar projects

    Huawei's FusionSolar 9.0 solution addresses key challenges facing utility-scale solar PV projects by improving LCOE through minimizing BOS costs, increasing power density, boosting energy yield, and enhancing reliability with features like self-cleaning and anti-icing technologies. The solution also includes grid forming capabilities that enable the generation of reactive power within 10 ms to cope with transient voltage instability. Smart Virtual Inertia technology can further enhance frequency stability and increase the short-circuit-ratio of PV plants, improving renewable energy transmission capability. Grid-forming inverters not only automatically recover reactive power at night but also provide off-grid power supply during the commissioning phase of a solar farm, using self-generated PV power for equipment testing. These advancements are cost-saving, environmentally friendly, and enable faster grid-connection compared to diesel generators.

    https://www.pv-magazine.com/2026/06/19/huaweis-fusionsolar9-0-solution-aims-to-redefine-optimal-lcoe-for-utility-scale-solar-projects/

  • Korean scientists build shingled solar module for thermoelectric generators

    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.

    https://www.pv-magazine.com/2026/06/17/korean-scientists-build-shingled-solar-module-for-thermoelectric-generators/

  • 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.

    https://www.pv-magazine.com/2026/06/18/solar-tracker-pneumatic-actuator-design-study-improves-efficiency-up-to-66-4/

  • 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/

  • 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.

    https://www.pv-magazine.com/2026/06/16/satellite-breakthrough-enables-accurate-panel-scale-temperature-mapping-for-solar-farms/

  • 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.

    https://www.pv-magazine.com/2026/06/15/pseudo-planar-heterojunction-organic-solar-cell-achieves-world-record-efficiency-of-20-21/

  • 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.

    https://www.pv-magazine.com/2026/06/15/farmers-call-for-on-farm-electricification-and-clean-tech-support/