Renewables

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.

BBDF 2025’s “From Solar to BESS: Moving from PV Project Development to BESS With and Without Co-location,” has shown the potential for creating new business modules in the renewable energy business via the so-called hybrid power purchase agreements and the co-location of wind and solar energy assets with battery storage.

Scientists in Morocco have developed a method that uses the metadata of PV plants’ infrared images to label them geographically. The automatic database can then be used in deep learning models and significantly reduce the time required for data labeling.

The German authorities have selected 118 MW projects totaling 255 MW in the nation’s latest rooftop PV tender.

The latest Sinovoltaics solar supply chain report about PV manufacturing in India indicates module capacity of 68.4 GW, cell capacity at 24.5 GW, and ingots at 14 GW, with continued growth planned to 2030.

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.