Energy Storage

Scientists in Japan have used a deep reinforcement learning–based AI model to calculate discrepancies between the planned and actual electricity supply volumes in PV-battery systems operating in markets where grid imbalances are penalized. Through a series of simulations, they found that the proposed methodology can reduce imbalance penalties by approximately 47%.

Researchers in Japan have adopted a new calcium-doping strategy to improve the stability and electrochemical properties of NFM, a cathode material used in sodium-ion batteries. The new technique enhances crystallinity and increases the interlayer spacing in NFM, resulting in higher performance compared to NFM treated with conventional processes.

Energy China has signed three EPC contracts worth $2.7 billion for 5 GW of wind and solar projects in Saudi Arabia with partners including PIF and Aramco Power.

Inverters must withstand the high levels of heat generated when operating, otherwise system performance and reliability could be at risk. Cody Schoener of Dow Performance Silicones argues using silicone-based materials for inverters can improve thermal management and fire protection, while offering thermal stability, environmental resistance, electrical isolation and support for operational efficiency.

German researchers say shared-use and digital brokerage models could lift utilization and profitability of supermarket EV charging stations by up to 255%.

Researchers in Canada have proposed using gravity-based energy storage in high-rise buildings, in combination with photovoltaic facades, small wind turbines, and lithium-ion batteries. Their modeling indicated that this hybrid system could achieve a levelized cost of energy ranging from $0.051/kWh to $0.111/kWh.

New research reopens the question around magnesium-based battery viability at room temperatures.

The Chinese manufacturer said its new inverters can deliver 160% overload for 200 ms in off-grid mode, ensuring stable startup of heavy loads. The IP66-rated products feature a maximum efficiency of 97.6% and a European efficiency of 97.2%.

Growing price volatility and the rise of negative pricing across power markets are pushing lenders and developers to rethink risk and revenue structures, focusing on asset flexibility and sustainable business models for storage, including co-location.

The single-phase system delivers an output ranging from 3,680 W to 10,000 W and offers a storage capacity between 4.992 kWh and 19.968 kWh. The new product is based on LFP batteries.