Britain’s T-1 Capacity Auction for delivery in the 2023-24 period saw battery energy storage technology emerge as the third-biggest winner in terms of secured contracts, following gas and nuclear. Batteries accounted for more than a half of the new build capacity.

Researchers in China have successfully prepared cobalt oxide-modified graphite felt as an electrode material for an iron-chromium flow battery. The electrode performance significantly improved due to the effects of cobalt, which in turn boosted the energy efficiency and overall performance of the battery.

There is currently no widely accepted test methodology to assess the safety of second-life lithium-ion batteries (LiBs). However, a UK government study reveals two opposing views on their safety, raising concerns over whether such devices should be deployed in homes under any circumstances.

A new research paper proposes an optimal planning technique to identify the locations and sizes of electric-vehicle (EV) charging stations with controlled charging and hybrid wind and PV systems in a multi-microgrid.

Last year was another landmark 12 months for energy storage, with all indicators pointing to a massive surge in demand. Supply chain instability and inflation saw battery prices rise but the industry demonstrated an ability to swiftly react to geopolitical developments. We look at five trends driving the market.

Singapore-based VFLowTech is manufacturing compact, scalable vanadium redox flow batteries with 24/7 operation over lifespans of 25 years. It is now setting up a 200 MWh production line, with plans to scale up the production of modular, long-duration storage solutions.

Enerpoly produces low-cost, low-maintenance zinc-ion battery storage systems for durations of two to 10 hours. The Swedish battery specialist now plans to develop prototypes of a residential plug-in storage system with rechargeable zinc batteries in Europe, under an EU-funded collaborative project with Austrian startup EET.

Scotland’s Gravitricity is developing gravity-based storage facilities in former mine shafts to stabilize electricity networks at 50 Hz, by responding to full power demand in less than a second. CEO Charlie Blair speaks to pv magazine about the potential and limitations of the tech, and how it compares to lithium-ion battery storage.

Poland’s Unimot Group is expanding its production line for Avia Solar monocrystalline PV modules due to growing demand for products made in Europe.

US residential solar specialist Sunnova is seeking approval from the California Public Utilities Commission (CPUC) for its micro-utility business model, which could potentially disrupt the state’s energy landscape. pv magazine speaks to CEO John Berger about plans to develop self-sustaining microgrids by equipping new homes and communities with solar and storage.