German researchers have developed a sodium-ion battery technology using lignin-based hard carbon as the negative electrode, showing no significant degradation after 100 cycles. Lignin, a by-product of the wood and pulp industry, was chosen for its conductivity and electron storage capabilities. The goal is to achieve 200 cycles for the 1-Ah full cell, targeting stationary or mobile storage applications. This project supports independence from critical raw materials and aims to transition to cheaper, more sustainable batteries.
Author: Pv Magazine
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India installs more than 2.08 million rooftop solar systems under PM scheme
Since early 2024, India has installed over 2.08 million rooftop solar systems under the PM Surya Ghar: Muft Bijli Yojana program, with INR 147.7 billion in central subsidies disbursed. The initiative has benefited over 2.6 million households nationwide, with Gujarat leading in implementation. The program provides upfront subsidies for residential consumers to install rooftop solar systems, aiming to generate renewable electricity and reduce carbon dioxide emissions. Deployment of rooftop solar systems across 10 million households could generate up to 1,000 billion units of renewable electricity and reduce emissions by 720 million metric tons over 25 years.
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Onyx Solar BIPV solution turns skyscraper skin into power source
Onyx Solar is installing a custom building integrated PV system at Atlassian's new headquarters in Sydney, featuring 1,794 solar glass 'louvres' that act as a self-shading system to reduce heat gain and enhance energy efficiency. This PV glazed facade allows natural light to enter, reducing the need for artificial lighting and lowering energy consumption. The BIPV system enables the building to generate its own energy while maintaining comfort and aesthetics, with Atlassian aiming for 100% renewable energy operation by 2027.
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The impact of microclimate effects on floating PV plants
French researchers have developed a high-resolution computational framework to model microclimate effects of large floating solar PV systems, ground-mounted installations, and agrivoltaic systems. The model can inform thermal performance, environmental impacts, and optimize designs for utility-scale floating PV. It allows for accurate predictions of heat transfer, ambient temperatures, and water evaporation based on panel configuration and wind conditions. Additionally, researchers are developing CFD models to predict energy output and environmental trade-offs of dual-use photovoltaic systems and FPV evaporation research, as well as an agrivoltaics CFD-plant model to predict crop response below PV canopies. The study involves Ecole nationale des ponts et chaussees, Electricité de France RD, and Université Claude Bernard.
https://www.pv-magazine.com/2026/02/02/the-impact-of-microclimate-effects-on-floating-pv-plants/
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Australian renewables exceed 50% of power supply in Q4
Renewable generation in Australia reached over 50% in the fourth quarter of 2025, leading to lower wholesale power prices and improved grid reliability during extreme weather events. Batteries played a key role in stabilizing energy supply, with record levels of battery output. The Cheaper Home Batteries scheme has spurred rapid battery installations, supporting the growth of renewable energy infrastructure. The transition to a low-cost, clean, firmed renewables powered energy system is crucial for grid reliability, as coal power becomes more unreliable. The unstoppable energy system transformation is highlighted by the increasing frequency of extreme weather events, with renewable energy capacity additions surpassing nuclear additions.
https://www.pv-magazine.com/2026/02/02/australian-renewables-exceed-50-of-power-supply-in-q4/
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UNSW researchers identify new damp heat-induced failure mechanism in TOPCon solar modules
UNSW researchers have identified a new damp-heat degradation mechanism in TOPCon modules, driven by rear-side recombination and open-circuit voltage loss rather than series-resistance increase. The study emphasizes that magnesium in white EVA encapsulants accelerates degradation, guiding improved encapsulant and backsheet selection for more reliable modules in humid environments. The primary driver of degradation is a reduction in open-circuit voltage, particularly attributed to additives containing magnesium in white EVA. Insights from the research have led to design changes that reduce risks in commercial modules, aiming to refine encapsulant and material selection strategies for TOPCon modules, especially in humid climates. Other studies by UNSW have explored the effects of different encapsulants, soldering flux, and contaminants on TOPCon solar cells, as well as the impact of electron irradiation and UV-induced degradation.
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How to design a UL-certified balcony solar kit in the United States
UL Solutions has released new technical guidance and a proposed certification pathway for plug-in balcony solar systems, addressing safety risks and design requirements as US states consider legalizing the technology. The white paper outlines safety considerations such as overcurrent protection, touch safety, and ground-fault protection for consumer-installed solar systems that connect directly to wall outlets. UL developed a new certification pathway, UL 3700, following the passage of Utah's balcony solar legislation, with similar bills under consideration in other states. Potential mitigation measures include dedicated circuits, solar-specific receptacles, and careful design for interactions with ground-fault circuit interrupters. UL emphasizes evaluating safety outcomes over commercial viability for plug-in PV systems.
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Korean scientists build mini perovskite solar module with 22.56% efficiency
Researchers at GIST have developed a perovskite mini-module with 22.56% efficiency by improving the SnO2 electron transport layer with PEI, reducing defects and electron loss. The module retained 94% of its performance after 500 hours, showing potential for scalable, stable perovskite solar cells and modules. The team focused on engineering the interface of the electron transport layer to address non-uniformity issues and improve efficiency and stability. By incorporating PEI into the SnO2 layer, they were able to reduce electron loss, improve electrical environment at the interface, and facilitate smooth electron transport, leading to high-quality perovskite films suitable for mass production.
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Envision claims AI-enabled storage systems can detect battery safety risks days in advance
Envision Energy has introduced a fully integrated energy storage solution that incorporates hardware, software, and market capabilities to enhance battery deployment in evolving energy systems. The company's approach includes cell innovation, power conversion, system controls, artificial intelligence, and electricity trading to connect physical assets with real-time intelligence. Envision's strategy focuses on "physical AI," which integrates AI directly into the operation of storage assets to ensure grid stability, equipment safety, and operational efficiency. The company's Physical AI system, supported by the Dubhe Energy Foundation Model, analyzes real-world energy data to optimize renewable generation, storage, grids, and demand in real time. Envision's AI technologies are embedded across multiple layers of the storage system to support grid functions, operational optimization, market participation, and asset health and safety monitoring. Envision is utilizing AI technology to predict faults in energy storage systems, allowing for proactive maintenance and avoiding emergency shutdowns. The company's AI models can detect voltage irregularities associated with dendrite growth in battery cells, improving operational reliability and safety. Envision believes AI can optimize storage economics by improving price forecasting, reducing operational constraints, and enabling flexible trading strategies. The company sees strong potential for AI-enabled grid-forming storage in commercial and industrial applications, with projects already operating in China and development underway in other markets. Envision plans to deploy its AI-enabled storage solutions globally, co-located with renewable energy generation. Envision is focusing on developing in-house AI models to apply across the renewable energy system, believing that companies with large datasets and proprietary AI models will have an advantage in the sector. They see AI adoption as a widespread trend rather than a competition. Envision's CEO, Huang, emphasized that they don't just use AI, they develop it, and their goal is to build the foundation of a renewable energy system.
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‘Agrivoltaics is not just a land-sharing concept, but a systems-level solution to some of the world’s most pressing challenges’
Researchers have conducted a multidimensional study on agrivoltaics, finding that it could add over 1,800 million tonnes to global crop yields annually and generate over $1 trillion in added global agricultural income. The study looked at the impact of agrivoltaics on sustainability, soil-crop productivity, socioeconomic resilience, solar power generation, spatial efficiency, and species. Agrivoltaics was seen as a systems-level solution to food insecurity, climate stress, land-use conflicts, and economic vulnerability. The study found that agrivoltaics could potentially increase global crop production by 1.8 billion tonnes annually, providing enough calories to feed over 2.1 billion people per year. This innovative approach combines solar energy production with agricultural practices, offering potential solutions for sustainable land use and renewable energy generation, highlighting the importance of exploring new methods like agrivoltaics to address climate change challenges and promote environmental sustainability.