Optimal sizing for AC multi-bus microgrids based on solar, storage
A French–Moroccan research group has developed a two-stage hierarchical techno-economic model to optimize AC multi-bus microgrids in remote areas. This microgrid configuration is more complex than that of standalone systems but offers several advantages in terms of cost efficiency and energy reliability.
Indian scientists create scalable recycling process for solar waste
Researchers at India’s MIT World Peace University have developed a scalable process that recovers valuable materials from retired solar panels and converts residual waste into construction products, promoting a circular solar economy.
Japan launches R&D call for tandem perovskite solar cell mass production
Japan’s New Energy and Industrial Technology Development Organization (NEDO) is accepting proposals for a six-year R&D program to advance large-scale manufacturing technologies and field testing of next-generation tandem perovskite solar cells.
Romania’s grid operator publishes rules for capacity auctions
All generation and energy storage facilities of 5 MW or larger in Romania will be required to secure grid access via annual auctions beginning January 2026. The country’s transmission and system operator, Transelectrica, has published how it plans to implement the auctions.
French startup launches solar-based EV charging optimization system
DejaBlue has developed a plug-and-play energy management system that boosts self-consumption and cuts costs for PV-powered EV charging sites.
Sermatec’s 6.25 MWh battery storage system enters mass production
The Chinese manufacturer reports that it has established automated production lines and a mature supply chain to support large-scale deliveries, with initial shipments scheduled to begin in the fourth quarter of 2025 in China.
Sentorise releases 100 Ah battery for off-grid use
The Chinese storage system manufacturer said its 12.8 V product is designed for RV travelers, off-grid homeowners and marine users. It reportedly provides over 6,000 cycles at 90% depth-of-discharge.
Mitsubishi debuts 640 kW heat pump providing hot water up to 90 C
The ETI-W heat pump, with a coefficient of performance of up to 4.1, utilizes heat emitted from factory production processes as a heat source to supply hot water at up to 90 C. Debuting on the Japanese market, the system targets industrial and commercial applications.
IPVF demonstrates 16.8%-efficient mini bifacial perovskite solar module
The French research institute said the bifacial wide bandgap perovskite technology is to be scaled in size to 60 cm x 30 cm for use in four-terminal perovskite-silicon tandem panels.
Astrobotic, Honda developing vertical solar, storage solution for lunar missions
Pittsburgh-based aerospace company Astrobotic and Honda’s North American subsidiary are working on integrating Astrobotic’s vertical solar array technology with Honda’s regenerative fuel cell system to develop a power and storage solution capable of supporting prolonged exploration of the moon.
