Storage

Sungrow Power has revealed its newest hybrid residential energy storage system. Upgrades to its MG Series inverters and a battery will be launched in Q4.

The US-based company says its new AeroTherm G2 uses both electric and heat-pump-based heating. It ranges from 189 L to 303 L in capacity.

For the first five months of 2025, CAISO data showed solar electricity curtailment declined by 12% as a share of generation, falling from 13% to 11.5%, even as solar output grew 18% year over year. During this period, however, curtailment still rose 4.1% in absolute terms, with March showing a 28% increase, matching the prior year’s peak.

The Chinese company says its new storage product is designed for high-load scenarios, including motorhomes and solar setups. It supports up to four batteries in series and four batteries in parallel.

Scientists in China have simulated an advanced adiabatic compressed air energy storage, to which they added an elastic airbag with a heavy load situated above it. The energy, exergy, and economic analysis of the system showed that, due to the constant weight of the heavy load, the airbag’s pressure level remains unaltered during operation.

Financing remains one of battery energy storage system’s (BESS) biggest talking points, as bankability, risk mitigation, insurance, and more.

Tech specialists at the “Technological advancement and risk mitigation” panel identified safety and warranties as the key pillars of quality in the battery storage sector. Speakers discussed how these factors shape component selection and long-term project viability.

The role of solar PV in Indonesia will extend beyond replacing coal-based electricity generation; it will also include the production of e-fuels for hard-to-abate segments, offering an alternative to land-intensive biofuel production. A recent study explores, through various scenarios, the cost-competitiveness of solar PV-based electrification in supporting Indonesia’s renewable energy transition.

Scientists have developed a wireless charging system for electric vehicles, with a three-port DC–DC converter at its core. They have simulated the system and tested a prototype in their lab and have found it achieved an improved efficiency of 88%.

Researchers in China have used electrochemical impedance spectroscopy to analyze the state of health of sodium-ion batteries. Extracting four features from the measurements, they were able to create a machine learning model for a temperature-resistant state of health estimation method.