Solar curtailment on the rise in Poland
Curtailment of renewable energy in Poland rose 36% in the first five months of 2025, threatening the financial viability of solar plants as operators face long delays and reduced compensation for lost output.
What standards for agrivoltaics?
The technology which combines solar PV panels and agriculture is gaining ground. IEC Standards for solar photovoltaic (PV) systems already exist, but more might be required, dealing with some of the more specific issues relating to agriculture.
Chinese researchers build 21.60%-efficient perovskite solar modules via blade coating
A research team led by the Dalian Institute of Chemical Physics in China have used tetramethylammonium chloride in the fabrication of perovskite solar cells and modules, demonstrating that it improved both stability and efficiency results. The group’s 10 cm × 8 cm modules achieved certified 21.60% power conversion efficiency. The novel interfacial modification enabled the use of scalable blade coating to deposit both transport layers and the perovskite layer.
A closer look at France’s largest solar plant
Neoen’s 300 MW Cestas solar park, commissioned in 2015, remains France’s biggest PV plant and the only one in the country that contributes to grid stability, even at night.
Fraunhofer ISE estimates Germany’s agrivoltaic potential at 500 GW
Fraunhofer Institute for Solar Energy Systems (ISE) says Germany could deploy up to 500 GW of agrivoltaic capacity, based on a nationwide assessment of all agricultural land types and site suitability criteria.
Italy launches floating PV tender
The Italian authorities have opened a tender to support the deployment of about 50 MW of floating PV capacity.
Japan’s 24th solar auction concludes with average final price of $0.028/kWh
Japan has allocated 79 MW of PV capacity in its latest procurement exercise. The highest price in the auction was JPY 7.79 ($0.054) /kWh.
Researchers identify optimal level of solar, battery storage for European energy market
Researchers in Hungary have developed a model to calculate the optimal PV and battery storage balance to support the European grid in the next few years. They found that the cost-optimal range is at 530–880 GW of PV, combined with battery storage equivalent to 2.5–7.5% of the total intermittent capacity.
Novel sizing approach for PV, battery storage in smart homes
Scientists in Iran have developed a novel framework to optimize the capacity of PV and battery storage in smart homes, using a two-stage stochastic programming model. They considered the uncertainties in the grid, market price, and PV output, while also looking at different operation cases.
Deye launches C&I power conversion system with battery storage
Deye has developed a new power conversion system (PCS) optimized for solar integration, with modules ranging from 100 kW to 125 kW. The Chinese manufacturer says the PCS supports flexible system design and targets commercial and industrial (C&I) applications.
