Author
François Saugues
With a background in energy grids (electricity distribution, water, natural gas transport & distribution, I switched to PV in 2008, joining Stäubli to develop and structure the PV connectors activity in France. For several years, my focus is on prescription of good practice & security of PV installations, and their consequences on ROI and TCO.
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Articles written by François Saugues
Global PV oversupply accelerates consolidation, regional price divergence
pv magazine spoke with Edurne Zoco, Head of Technologies and Supply Chains at S&P Global Energy, about global PV supply chain trends, persistent overcapacity and the impact of China’s new efficiency standards on solar manufacturing. She discussed module pricing, shifting trade policies and emerging risks and opportunities in the inverter and battery storage markets.
Oct 09, 2026
AuroraCell launches 9.7 kWh sodium-ion chromium oxide residential battery
The 48 V residential energy storage system uses sodium-ion NCO chemistry and offers 9.7 kWh of rated energy. AuroraCell claims a cycle life of 20,000 cycles at 100% depth of discharge and backs the battery with a 20-year warranty.
Heterojunction solar cell built with biomass lignin-based silver paste achieves 25.96% efficiency
Chinese researchers have developed a biomass lignin-based silver paste for HJT solar cells that reduces reliance on petroleum-based resins and improves electrical performance. The optimized paste increased solar cell efficiency from 25.01% to 25.96% while improving printability, adhesion, and conductivity.
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Mixed self-assembled monolayer enables 18.88% efficiency in 5.2 cm² inverted perovskite solar cell
Researchers in India have developed an inverted perovskite solar cell based on a mixed self-assembled monolayer (SAM) that improves film quality, charge transport, and device stability. The cell achieved an efficiency of 18.88% on an active area of 5.2 cm², with a relative efficiency loss of only around 7% compared with smaller devices.
Indian startup claims over 1,500 cycles for sodium-ion cell with Prussian white cathode
Indian startup Macsen Energy claims its Prussian white-based sodium-ion battery cell has exceeded 1,500 charge-discharge cycles in laboratory testing, retaining 90% of its initial capacity after 1,000 cycles. The company also plans to build a cathode material production facility and battery cell pilot line, with construction set to begin in 2027.
Daikin unveils air-to-air heat pumps for highly insulated homes
The Japanese manufacturer has introduced a new generation of its Ururu Sarara X reversible air conditioners, featuring heating capacities from 2.2 kW to 8.0 kW and a new compressor designed to improve efficiency under low-load operation.
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Chinese scientists build 33.3%-efficient perovskite-silicon tandem solar cell processed in ambient air
Chinese researchers developed a PNCC polymer hole-transport layer that enables efficient and stable perovskite solar cells to be fabricated under ambient conditions. The material was used in a perovskite-silicon tandem cell that achieved 33.3% efficiency and a certified efficiency of 33.0%.
Sungrow raises inverter, storage prices by up to 15%
Sungrow will raise prices for solar inverters and energy storage products by 5% to 15% from Sept. 20, citing rising raw material and component costs. The move, its second price increase this year, reflects broader cost pressures across China’s inverter and storage supply chains.
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Press releases
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NTPC Ltd
Oct 01, 2026
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ABB
Sep 10, 2026