Scientists build PEDOT:PSS-free all-perovskite tandem solar cell with 29.1% efficiency
PEDOT:PSS is commonly used as a hole transport layer in perovskite solar cells because it combines high transparency, good conductivity, and suitable energy-level alignment, but its moisture sensitivity and acidity can damage perovskite layers and limit long-term stability. In contrast, replacing it with a phenothiazine-based self-assembled monolayer allows better interfacial control during crystallization, lowers defect densities, and enables highly efficient all-perovskite tandem devices with a reported efficiency of 29.1%.
26 minutes ago
Spain’s offshore PV potential estimated at 6.48 GW
Spain could host 4.45–6.48 GW of floating offshore solar capacity, covering up to 9% of national electricity demand, according to new research. Using maritime spatial planning scenarios, researchers found potential is concentrated mainly in the Strait of Gibraltar–Alboran Sea, Canary Islands, and, under broader restrictions, the Mediterranean.
16 hours ago
Austria allocates €12 million for solar-plus-storage rebates
Austria will open its second 2026 PV funding round on June 17 with a total budget of €12 million, while continuing incentives for battery storage and European-made components. The first funding round showed strong demand and a clear shift toward PV-plus-storage systems, with around 90% of applications including batteries.
17 hours ago
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Oil in turmoil, solar stays stable
Soaring energy costs have grabbed headlines around the world the past two months, but prices across the solar supply chain are marching to their own beat, writes Hanwei Wu of OPIS. Oversupply in Asia continues to distort markets, with either sharp price falls or tepid price gains.
May 25, 2026
‘If I notice a woman being interrupted or overlooked, I intentionally bring the word back to her’
This week Women in Solar+ Europe gives voice to Josefin Berg, Associate Director – Renewables Markets – Horizons at S&P Global. She warns that the so-called “eclipse” moments, when women are interrupted or overshadowed in discussions, require vigilant, inclusive leadership that actively restores and amplifies overlooked voices.
Jun 12, 2026
Hot weather and clear skies give Europe a bumper May
In a new weekly update for pv magazine, Solcast, a DNV company, reports that Europe’s May weather was marked by a mid-month Arctic cold outbreak followed by a persistent heat dome that brought clear skies, record temperatures, and above-average solar irradiance across much of Central and Western Europe. While the blocking high boosted irradiance by up to 25% in some regions, cloudier conditions on its fringes left areas such as Scotland, Ireland, and Norway with below-average solar resource.
Jun 12, 2026
Visit us at Intersolar Europe
We are participating in Intersolar 2026 again this year! Visit us at our Booth Hall 2 A2.250 to discuss the latest trends within the photovoltaic industry with the pv magazine team.
June 23-25, 2026 | MUNICH, GERMANY
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Heat pumps cheaper to operate than gas boilers in almost all EU countries, IEA claims
Heat pumps could offer annual energy savings up to €800 ($924) in the EU, according to the International Energy Agency (IEA). But deployment is very uneven in both residential and industrial settings, which the IEA attributes to market structures and policy design, which varies from country to country.
UNSW research solves critical electrolyzer bottleneck in green hydrogen production
UNSW researchers have used 3D imaging to see how trapped bubbles affect the efficacy of electrolysers in the production of green hydrogen, smoothing the way for decarbonising hard-to-abate sectors such as steelmaking and heavy-duty transport.
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Highlights
India floats tenders for 1.2 GW of renewables with storage to ensure reliable peak power supply
Solar Energy Corp. of India (SECI) has invited bids for the development of 1.2 GW of interstate transmission system (ISTS)-connected renewable energy projects coupled with energy storage systems (ESS), aimed at delivering 4,800 MWh (1200 MW x 4 hours) of assured peak power daily.
Jun 11, 2026
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Hency Solar
12 hours ago
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19 hours ago
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Oil in turmoil, solar stays stable
Soaring energy costs have grabbed headlines around the world the past two months, but prices across the solar supply chain are marching to their own beat, writes Hanwei Wu of OPIS. Oversupply in Asia continues to distort markets, with either sharp price falls or tepid price gains.
May 25, 2026
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Oil in turmoil, solar stays stable
Soaring energy costs have grabbed headlines around the world the past two months, but prices across the solar supply chain are marching to their own beat, writes Hanwei Wu of OPIS. Oversupply in Asia continues to distort markets, with either sharp price falls or tepid price gains.
May 25, 2026
Austria allocates €12 million for solar-plus-storage rebates
Austria will open its second 2026 PV funding round on June 17 with a total budget of €12 million, while continuing incentives for battery storage and European-made components. The first funding round showed strong demand and a clear shift toward PV-plus-storage systems, with around 90% of applications including batteries.
17 hours ago
Cyprus curtails 65% of solar generation in January–May 2026
Cyprus curtailed 162 GWh of renewable energy in the first five months of 2026, equivalent to over 65% of potential solar generation, as grid constraints and must-run conventional units continue to limit renewable output. Curtailment is increasingly affecting residential PV systems, raising concerns over project viability amid falling wholesale prices and a lack of compensation.
24 hours ago
Australian farmers call for on-farm electricification and clean tech support
A new report released by clean energy advocacy group Farmers for Climate Action outlines a roadmap to help the agricultural sector accelerate the shift from imported fuel dependence to locally produced, lower-cost, more resilient energy systems.
Jun 15, 2026
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The battery cost disconnect
For years, the battery energy storage (BESS) story has followed a familiar script: costs fall, deployment accelerates, economics improve. Even when cell costs rose and system prices briefly flattened during the 2021-22 lithium price spike, the narrative largely held. Paola Perez Peña, senior principal analyst at S&P Global Energy, examines why the latest jump in lithium prices has only had limited impacts on overall BESS costs so far.
Apr 02, 2026
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Airengy, Hagag Europe to build 5 GWh compressed-air energy storage plant in Romania
Hagag Europe and Airengy’s Romania project will harness the latter’s long duration energy storage AirBattery technology with underground salt caverns to eventually reach 5 GWh storage capacity. Airengy told ESS News commercial operation is likely to begin in early 2028.
22 hours ago
World’s largest solar-hydrogen-storage project goes online in China
CHN Energy has completed construction of a 400 MW solar-hydrogen-storage project in Jiangsu, combining coastal PV, battery storage and green hydrogen production in a single integrated system. The project, which includes a 60 MW/120 MWh battery and a hydrogen facility producing 482 tons annually, is expected to begin full operations after hydrogen commissioning in August 2026.
Jun 15, 2026
Renewables-powered data centers feasible with sevenfold solar and wind overbuild, study finds
A LUT University study finds that data centers could be powered continuously by intermittent renewables like wind and solar when paired with backup generation and demand-side flexibility. However, achieving firm supply would require major overbuild, significant curtailment, and careful siting to keep costs competitive with other baseload sources.
Jun 12, 2026
Port of Valencia deploying PV on breakwaters
The Port of Valencia is deploying solar panels on breakwaters as part of the EU-funded Renewport project to advance renewable energy in Mediterranean ports. The pilot system aims to validate the technical, economic, and environmental feasibility of large-scale vertical photovoltaics.
Jun 12, 2026
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Solar key to space-based AI
Elon Musk, the CEO of both Tesla and SpaceX, raised some eyebrows at this year’s World Economic Forum (WEF) in Davos, Switzerland, when he predicted “that the lowest cost place to put AI will be space and that will be true within two to three years, three at the latest.” pv magazine reported on Musk’s vision on our global website www.pv-magazine.com on Jan. 26, 2026, and exactly one week later SpaceX announced that it was acquiring xAI “to form the most ambitious, vertically integrated innovation engine on (and off) Earth, with AI, rockets, space-based internet, direct-to-mobile device communications, and the world’s foremost real-time information and free speech platform.”
Mar 23, 2026
Scientists build PEDOT:PSS-free all-perovskite tandem solar cell with 29.1% efficiency
PEDOT:PSS is commonly used as a hole transport layer in perovskite solar cells because it combines high transparency, good conductivity, and suitable energy-level alignment, but its moisture sensitivity and acidity can damage perovskite layers and limit long-term stability. In contrast, replacing it with a phenothiazine-based self-assembled monolayer allows better interfacial control during crystallization, lowers defect densities, and enables highly efficient all-perovskite tandem devices with a reported efficiency of 29.1%.
26 minutes ago
Spain’s offshore PV potential estimated at 6.48 GW
Spain could host 4.45–6.48 GW of floating offshore solar capacity, covering up to 9% of national electricity demand, according to new research. Using maritime spatial planning scenarios, researchers found potential is concentrated mainly in the Strait of Gibraltar–Alboran Sea, Canary Islands, and, under broader restrictions, the Mediterranean.
16 hours ago
Pseudo-planar heterojunction organic solar cell achieves world record efficiency of 20.21%
Scientists have created pseudo-planar heterojunction organic solar cells with one of the highest efficiency scores ever for that structure. To do so, they had to overcome solvent-induced swelling and erosion of the donor. Their solution: a novel interfacial buffering strategy.
22 hours ago
Chinese scientists identify degradation pathways in low-silver heterojunction solar cells
Researchers investigated thermal aging in silver-coated copper electrodes for heterojunction solar cells, finding that silver-copper interdiffusion significantly increases contact resistance and degrades electrical performance. The study links microstructural evolution to a shift from sintering-enhanced conductivity to defect-driven network breakdown, providing guidance for improving long-term metallization reliability.
23 hours ago
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Hency Solar
12 hours ago
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19 hours ago
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Tongwei debuts BIFIMAX module for projects requiring high-bifaciality
With 90±5% bifaciality, TNC BIFIMAX 670 W can reduce CAPEX by 0.87 euro cents per Watt. The new solution, designed for high-latitude, high-albedo markets, will be showcased by Tongwei at this year’s Intersolar Europe in Munich.
Jun 11, 2026
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JA to showcase new utility-scale battery and latest-generation TOPCon modules at Intersolar 2026
JA, a global leader in photovoltaic products and integrated energy solutions, will introduce its latest advancements in battery energy storage systems and high-efficiency solar modules at Intersolar Europe 2026, alongside a dedicated sustainability and ESG event.
Jun 10, 2026