World’s largest vanadium flow battery goes online in China
A giant solar-plus-vanadium flow battery project in Xinjiang has completed construction, marking a milestone in China’s pursuit of long-duration, utility-scale energy storage.
DJI debuts 2 kWh Power 2000 battery
DJI previously offered a Power 1000 battery, released in 2024, but the company’s new Power 2000 model is uniquely compatible with its ecosystem, plus expansion batteries.
Open-source tools to build self-made management system for surplus PV power
French engineer André Buhart has published the plans and open-source software to create a DIY “solar energy router” to manage PV overproduction. Depending on the configuration, the device can direct excess photovoltaic energy to water heaters, pool motors, or underfloor heating, among others.
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.
Envision proves BESS fire resilience in CSA-certified test
Envision recently completed a large-scale, CSA C800 witnessed burn test of its 5 MWh energy storage system, demonstrating robust thermal containment and adding to industry-wide safety efforts.
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.
Brazilian energy storage regulation due this year, says regulator
Agência Nacional de Energia Elétrica (ANEEL), Brazil’s electricity regulator, will publish initial energy storage regulations in the second half of 2025, with two additional consultation phases set to conclude by 2028, according to rapporteur Daniel Danna.
Mitsubishi testing aquifer thermal energy storage for renewables
The Japanese conglomerate and the Osaka Metropolitan University are testing an aquifer thermal energy storage system that directly uses 10,000 m3 of groundwater stored at 5 C in a cooling well. It is intended to store renewable energy and produce cooling for air conditioning in the summer or heating for the winter.
German batteries stabilizing solar energy prices at expense of own profitability
Analyst Thema Consulting Group has calculated the impact of rapid expansion of battery storage systems in Germany and found they will help stabilize solar prices by reducing the number of negatively-priced-electricity hours – but will cannibalize their own revenue in doing so.
Trinasolar targeting ‘high-value’ markets
Yang Bao, Trinasolar’s president of global sales and marketing, recently spoke with pv magazine about the company’s strategy for the solar and energy storage business.
