IoT-controlled jute cooling reduces PV module temperature by 21.4 C
Tunisian researchers have developed an IoT-controlled jute-fabric cooling system that reduced PV module temperature by up to 21.4 C and increased power output by 40.44% in desert conditions. The system uses 86% less water than previous natural-fiber cooling approaches while achieving an 81.3% water recovery rate.
14 minutes ago
Chinese scientists achieve record-breaking 27.35% efficiency for perovskite-organic tandem solar cell
Nanjing University researchers developed a perovskite-organic tandem solar cell using a novel low-bandgap acceptor to boost near-infrared light harvesting and improve photocurrent matching. The device achieved a 27.35% efficiency, while retaining 80% of its initial performance after 744 hours of continuous illumination.
58 minutes ago
Why German energy provider Rabot Energy is selling a 2 kWh AC-only battery, no solar required
Rabot Energy launched Rabot Flow, a 2.12 kWh plug-and-play home battery for German apartment renters that uses dynamic tariffs to charge when grid electricity is cheap and discharge during price spikes. Sold at cost and requiring no electrician or smart meter, the Marstek-based battery promises around €120–€130 in annual savings while helping Rabot boost customer retention and grid flexibility.
2 hours ago
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From more than 50 GW to under 10 GW: Ukraine doesn’t need its old energy system back
Six air-raid alerts on the first day, backup generators on almost every street corner, and discussions about the rapid reconstruction of severely damaged energy infrastructure: my trip to Kyiv and Lviv showed me why decentralized solar and energy storage are far more than climate technologies for Ukraine. They are part of the country’s security architecture. They also underscore why German solar companies should be engaging with Ukraine today.
Sep 09, 2026
Italian solar redrew the day, but gas still sets the price
Solar growth softened Italy’s midday power squeeze in summer 2026, but higher heat-driven demand and weaker hydro and wind left gas to cover most of the 7.9 TWh supply gap. The result was a sharper evening exposure: gas generation surged, prices rose most after sunset, and solar-heavy southern zones increasingly faced midday oversupply and weaker capture rates.
Sep 09, 2026
Reliability risks emerge across BIPV, floating PV and agrivoltaics
A new IEA PVPS Task 13 report identifies distinct reliability risks across BIPV, floating PV and agrivoltaics, from heat and partial shading to wave loads, ammonia exposure and soiling. It argues that existing PV qualification standards do not fully capture these application-specific stresses, requiring adapted testing, design practices and performance metrics.
Sep 09, 2026
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Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls
Hitachi has introduced its Y-series EcoCute CO2 heat pump water heaters in Japan, with 370-liter and 460-liter models set to launch from November 2026.
The upgraded range adds expanded support for daytime electricity tariffs and PV-linked energy management, alongside a five-year manufacturer warranty.
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Socket to the sun
Ten states in the United States have passed laws permitting plug-in solar, with more to follow imminently. Low-income households, renters and temporary workers under pressure from high electricity bills are welcoming plug-in solar as a low-cost, portable and convenient solution. Precise business models have yet to emerge and there are technical and regulatory teething problems to address, as industry figures tell pv magazine.
6 hours ago
Strait and narrow
War in the Middle East and disruption to trade flows through the Strait of Hormuz have hit global energy markets hard, given the region’s importance to oil and gas exports. Fabian Skarboe Rønningen and Nishant Kumar of Rystad Energy examine ongoing impacts of the crisis on global energy import/export flows.
Sep 10, 2026
Fighting coastal corrosion
Salt in the air can wreak havoc with projects that lack the necessary corrosion resistance, proving costly for asset owners or the engineering, procurement and construction (EPC) companies that built them. Alexander Gebert, sales director at Tobsteel, argues that quality stainless steel fasteners can save costs for solar investors and engineering, procurement and construction (EPC) contractors in the long run.
Sep 09, 2026
Polysilicon playbook
Now that the United States has finally announced the outcome of its Section 232 investigation into polysilicon imports, industry analysts and investors alike have been weighing up the expected pros and cons of the policy’s likely impacts, particularly on ingot, wafer and cell manufacturing.
Sep 08, 2026
Heterojunction’s long road to the US solar factory
For a cell technology that has spent much of the past three decades on the verge of a breakthrough, heterojunction (HJT) is enjoying another moment in the spotlight. This time, however, the setting is somewhat unexpected – rather than the established manufacturing centers of China and Southeast Asia, some of the most significant new commitments to HJT are emerging in the United States, Finlay Colville reports.
Sep 07, 2026
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U.S. deploys 19.2 GW of solar in H1
The latest Solar Market Insight report from SEIA and Wood Mackenzie reveals a massive 61% jump in the year-over-year volume of utility-scale solar installations during the second quarter, but permitting issues and the looming tax credit cliff are expected to keep growth flat.
4 hours ago
Merchant BESS switched on at operational solar site in Romania
Econergy has launched commercial operations at its 70 MW/141 MWh Părău 1 battery project in Romania, paired with an existing 92 MW solar plant to create a 162 MW hybrid site. The fully merchant BESS can charge from the grid during low or negative prices, with Econergy expecting €9.7 million in storage revenue.
24 hours ago
India’s NTPC seeks proposals for sodium-ion battery storage pilots
NTPC is seeking proposals to develop grid-connected sodium-ion battery energy storage pilots at its thermal power plants and office buildings. The projects will assess the technology’s performance, safety, reliability and commercial viability under Indian grid and climatic conditions.
Sep 10, 2026
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Press Release
Hoymiles
20 hours ago
Press Release
Jinko ESS
20 hours ago
Press Release
Dunext
20 hours ago
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Fighting coastal corrosion
Salt in the air can wreak havoc with projects that lack the necessary corrosion resistance, proving costly for asset owners or the engineering, procurement and construction (EPC) companies that built them. Alexander Gebert, sales director at Tobsteel, argues that quality stainless steel fasteners can save costs for solar investors and engineering, procurement and construction (EPC) contractors in the long run.
Sep 09, 2026
Advertisement
Why German energy provider Rabot Energy is selling a 2 kWh AC-only battery, no solar required
Rabot Energy launched Rabot Flow, a 2.12 kWh plug-and-play home battery for German apartment renters that uses dynamic tariffs to charge when grid electricity is cheap and discharge during price spikes. Sold at cost and requiring no electrician or smart meter, the Marstek-based battery promises around €120–€130 in annual savings while helping Rabot boost customer retention and grid flexibility.
2 hours ago
GoSun unveils solar-chargeable electric tractor
GoSun and Moonrider have launched a 27 hp electric tractor powered by a 24 kWh LFP battery, with optional 1.1 kW solar charging. The four-wheel-drive tractor offers about five hours of runtime and features a 750 kg hitch lift capacity, rear PTO and connected functions.
4 hours ago
Rocket Lab launches 31.5%-efficient inverted metamorphic space solar cell
Rocket Lab has released its high-efficiency IMM Apex solar cell, eliminating costly and scarce germanium substrates while achieving 31.5% beginning-of-life conversion efficiency. The cell is reportedly 40% lighter than legacy triple-junction products and is designed as a drop-in replacement, improving spacecraft power-to-weight performance while reducing supply-chain risks.
4 hours ago
Midsummer, Indonesian firm sign deal for CIGS thin-film solar manufacturing plant
Midsummer’s minority stake in a new Indonesian joint venture marks its second copper indium gallium selenide (CIGS) manufacturing partnership abroad, following a similar equipment-and-know-how deal in Colombia and a decision to shelve its own planned Swedish factory.
20 hours ago
Longi, Soochow University unveil 34.0% perovskite-silicon tandem solar cell based on dual-anchored interfacial design
Soochow University and Longi researchers developed a ZrO₂ interfacial strategy that reduces recombination and leakage while improving charge extraction in perovskite-silicon tandem solar cells. The resulting device achieved 2.014 V open-circuit voltage and retained 84% of its initial efficiency after 2,000 hours.
Sep 10, 2026
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Strait and narrow
War in the Middle East and disruption to trade flows through the Strait of Hormuz have hit global energy markets hard, given the region’s importance to oil and gas exports. Fabian Skarboe Rønningen and Nishant Kumar of Rystad Energy examine ongoing impacts of the crisis on global energy import/export flows.
Sep 10, 2026
U.S. deploys 19.2 GW of solar in H1
The latest Solar Market Insight report from SEIA and Wood Mackenzie reveals a massive 61% jump in the year-over-year volume of utility-scale solar installations during the second quarter, but permitting issues and the looming tax credit cliff are expected to keep growth flat.
4 hours ago
Romania allocates €650 million for solar, storage at public buildings
New subsidy schemes in Romania will cover up to 100% of the costs associated with installing solar-plus-storage at public institutions, or with adding storage to existing PV installations. Calls for proposals open tomorrow.
21 hours ago
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Socket to the sun
Ten states in the United States have passed laws permitting plug-in solar, with more to follow imminently. Low-income households, renters and temporary workers under pressure from high electricity bills are welcoming plug-in solar as a low-cost, portable and convenient solution. Precise business models have yet to emerge and there are technical and regulatory teething problems to address, as industry figures tell pv magazine.
6 hours ago
Advertisement
Merchant BESS switched on at operational solar site in Romania
Econergy has launched commercial operations at its 70 MW/141 MWh Părău 1 battery project in Romania, paired with an existing 92 MW solar plant to create a 162 MW hybrid site. The fully merchant BESS can charge from the grid during low or negative prices, with Econergy expecting €9.7 million in storage revenue.
24 hours ago
India’s NTPC seeks proposals for sodium-ion battery storage pilots
NTPC is seeking proposals to develop grid-connected sodium-ion battery energy storage pilots at its thermal power plants and office buildings. The projects will assess the technology’s performance, safety, reliability and commercial viability under Indian grid and climatic conditions.
Sep 10, 2026
Applications & Installations
Sponsored
Sodium-ion storage powers fully off-grid solar home in Germany
A homeowner in Augsburg has paired 270 kWh of BIWATT sodium-ion storage with 49 kWp of solar, creating a fully off-grid household energy system with local distributor SALZSTROM providing the solution.
Sep 09, 2026
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IoT-controlled jute cooling reduces PV module temperature by 21.4 C
Tunisian researchers have developed an IoT-controlled jute-fabric cooling system that reduced PV module temperature by up to 21.4 C and increased power output by 40.44% in desert conditions. The system uses 86% less water than previous natural-fiber cooling approaches while achieving an 81.3% water recovery rate.
14 minutes ago
Chinese scientists achieve record-breaking 27.35% efficiency for perovskite-organic tandem solar cell
Nanjing University researchers developed a perovskite-organic tandem solar cell using a novel low-bandgap acceptor to boost near-infrared light harvesting and improve photocurrent matching. The device achieved a 27.35% efficiency, while retaining 80% of its initial performance after 744 hours of continuous illumination.
58 minutes ago
Iron-mediated cathode enables 206 Wh/kg sodium-ion pouch cell
Chinese researchers have developed an iron-mediated strategy that improves the reversibility and stability of lattice-oxygen redox reactions in sodium-ion battery cathodes. A 15.8 Ah pouch cell using the cathode achieved an energy density of 206 Wh/kg, with lattice-oxygen redox reversibility reaching 99%.
4 hours ago
Two-step process turns end-of-life PV backsheets into supercapacitor electrodes
Chinese researchers have developed a two-step process to recycle waste TPT solar backsheets into hierarchical porous carbon for supercapacitor electrodes. The resulting material achieved a specific capacitance of 469 F/g and retained 92.4% of its initial capacitance after 10,000 cycles.
Sep 10, 2026
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Press Release
Hoymiles
20 hours ago
Press Release
Jinko ESS
20 hours ago
Press Release
Dunext
20 hours ago
Applications & Installations
Sponsored
Sodium-ion storage powers fully off-grid solar home in Germany
A homeowner in Augsburg has paired 270 kWh of BIWATT sodium-ion storage with 49 kWp of solar, creating a fully off-grid household energy system with local distributor SALZSTROM providing the solution.
Sep 09, 2026
Technology & Products
Sponsored
Great Power successfully completes full-scale fire test
Great Power has completed a full-scale fire test of its 5 MWh energy storage system, with no fire propagation to adjacent containers, no structural collapse, and no thermal runaway observed in any adjacent module.
Sep 08, 2026
Technology & Products
Sponsored
Journey Ahead: JA Roadshow 2026 to spotlight integrated energy solutions
As energy resilience rises on the agenda across Europe, JA’s first roadshow, Journey Ahead: JA Roadshow 2026, will bring the company’s expanding PV and energy storage portfolio directly to customers, demonstrating how integrated technologies can support greater grid resilience and meet evolving energy needs.
Aug 31, 2026
Applications & Installations
Sponsored
Two years at 5,200 meters: POWEROAD BESS proven in extreme altitude
At 5,200 meters above sea level, where extreme weather, unstable grid conditions, and limited site access make energy reliability a constant challenge, POWEROAD has achieved more than 800 days of stable operation for its Everest Base Camp energy storage project.
Aug 24, 2026
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