China’s 600 MW/2.4 GWh storage plant becomes world’s largest CAES site
With 600 MW of installed capacity and 2,400 MWh of storage, the Huai’an Salt Cavern project is now the world’s largest compressed air energy storage (CAES) facility, surpassing the 300 MW/1,500 MWh project commissioned earlier this year that previously held the title.
Sigenergy unveils 2.68 kWh battery for balcony PV
Sigenergy has launched a 2.68 kWh balcony storage system with four MPPTs and up to 4 kW of PV input. The scalable LFP solution offers 800 W grid output, 1.2 kW backup power, and expansion up to 18 kWh per tower.
Greece faces rising renewables curtailment, driving solar-plus-storage
Greece’s solar producers are facing rising curtailments that are cutting revenues and driving interest in energy storage, even as regulatory and financing challenges slow deployment.
Iraq’s largest solar project enters trial operation
Iraq’s Ministry of Electricity says an initial 61 MW from the first unit of a planned 1 GW solar project has commenced. The project is being developed across four 250 MW units, with final commissioning currently scheduled for 2028.
Germany’s Texxecure launches standardized quality rating for PV systems
The Texxecure PV Quality Rating evaluates solar modules, inverters, and entire projects using uniform technical criteria, condensing technical risk into a single AAA-to-D score for developers, investors, banks, and insurers.
Ecoflow debuts 5 kWh residential inverter battery with 100% depth of discharge
EcoFlow has unveiled the single-phase Ocean 2 all-in-one battery inverter at Key Energy in Rimini. The system features a more compact 5 kWh LFP battery stackable up to 30 kWh and offering 100% depth of discharge, 3.4 kW discharge power, and IP66 protection.
Estonia deploys 105 MW of solar in 2025
Estonia’s cumulative solar capacity reached around 1,430 MW by the end of last year. Year-on-year installations slowed as the country’s solar market begins to saturate, with future growth expected to be driven by supplementing solar parks with batteries.
Mitsubishi Electric Trane announces new heat pump line for hydronic heating
The systems deliver outlet water temperatures up to 74 C, operate in ambient temperatures from -25 C to 43 C, and can be cascaded in groups of up to 16 units for larger commercial applications.
Optimizing solar EV stations for maximum impact
A new report from the International Energy Agency Photovoltaic Power Systems Programme (IEA PVPS) Task 17 outlines how photovoltaic systems can be effectively integrated with electric vehicle charging infrastructure through optimized sizing, intelligent control, and site-specific design.
Group Surya commissions 500 MW G12R module line in India
Group Surya has launched a 500 MW G12R solar module production line in Odisha, India, with plans to double capacity to 1 GW within months.
