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.
Costa Rica doubles feed-in rates for new distributed solar producers
Costa Rica’s state utility has approved an average 111% rate increase for new distributed generators under revised eight-year contracts.
Chile loses $562 million to rising solar and wind curtailment
Ember says Chile has curtailed 11,900 GWh of renewable generation since 2022 due to grid congestion, costing operators $562 million.
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.
Chile’s energy storage capacity reaches 4.6 GWh
According to data from the Chilean Association of Renewable Energy and Storage (ACERA), the share of non-conventional renewable energy in Chile’s electricity grid rose to 39.5% of total generation in August.
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.
