Distributed Storage

Following their review of redox flow battery research, Norway-based scientists told pv magazine that despite its high upfront capital costs and lower energy density relative to metal-ion, the technology can offer safety, reliability, and scalability advantages for standalone, large-scale applications.

On Feb. 1, California’s batteries bridged the solar gap with seamless precision. After discharging through the night until sunrise, they spent the daylight hours charging, then pivoted back to exporting power well past midnight – effectively sustaining the state on solar energy for a full 24-hour cycle.

The US company said its Power Control software is designed to help installers reduce costs and streamline interconnection. Among its features is the ability to control aggregate system exports through software-based limits.

Cross-border VPPAs expose corporates to Basis Risk, causing settlement price gaps and weakening confidence in these hedging tools, contributing to a 35% drop in European PPA signings in 2025 amid complex market conditions. The market is shifting toward more structured, domestic, and hybrid PPAs, supported by BESS and modern IPPs, to better manage risk and realign buyers, sellers, and lenders.

Spain installed 339 MWh of storage linked to PV self-consumption in 2025, up 119% year on year, according to APPA Renovables. The country added 1,214 MW of new self-consumption capacity, bringing the total to 9.6 GW.

The silicon batteries developed by the Spanish startup Silbat are spearheading the Research and Analysis of Long-Duration Energy Storage for Operational Resilience in Critical Military Infrastructures (ARMIC) project, covering Technology Readiness Levels (TRL) 7 to 8.

An international research team has reviewed emerging solid-state and gas-cycle heat pumps capable of reaching temperatures of up to 1,600 K, assessing their challenges, applications, scalability, and technology readiness levels. The researchers say these systems could outperform conventional high-temperature heating technologies by achieving coefficients of performance above 1.

Brazil has opened consultations on its PDE 2035 energy plan, which projects 107 GW of solar by 2035 – including 78 GW of distributed generation – with battery storage reaching 7 GW, or 2% of the power mix.

Research exploring off-grid practices in South Africa has defined three forms of off-gridding, with reasons for being off-grid varying depending on income background, in turn highlighting that decentralized energy transitions can reproduce existing inequalities.

Japanese researchers used supercomputer simulations to reveal how sodium ions form clusters and move within hard carbon anodes, identifying nanopore sizes and transition regions that control diffusion and rate performance in sodium-ion batteries. Their findings offer design guidelines for optimizing hard-carbon anodes to improve energy density, cycling, and commercialization prospects.