Solar-assisted air-source heat pump for radiant floor heating
Researchers in Canada designed an air-source heat pump integrated with an air-based solar collector and radiant floor heating for cold climates, showing that the proposed system configuratuon could improve the coefficient of performance from 2–4 to 2–6 and reduce significantly annual energy consumption.
ESS Tech to add 8.5 GWh of US-made sodium‑ion batteries to its portfolio
ESS Tech is complementing its iron flow storage offering, which is engeeneered for the 8–24 hour long-duration segment, with sodium-ion battery products aimed at short and medium-duration applications.
Anker Solix launches 7 kWh modular battery with 5 kW bidirectional inverter
The system features AI-driven energy management, 10,000-cycle battery life, and scalable expansion up to 126 kWh.
Gotion unveils 5 MW/18.8 MWh ensclosed battery storage system
While the exact specifications of the new product, such as dimensions and weight, haven’t been disclosed, available imagery suggests potential transportation challenges.
Chile reaches 4.6 GW of energy storage under construction
The March 2026 Energy Sector Construction and Investment Projects Report, released by the Chilean Ministry of Energy, records 38 storage systems under construction, for 4,597 MW and 18,780 MWh.
New partnership advances sodium-ion manufacturing in Spain
In a week marked by the largest sodium-ion battery order to date, widely seen as a watershed moment for the technology’s commercialization at scale, one of Europe’s emerging players, Spain’s Bihar Batteries, is strengthening the outlook for European-made sodium-ion batteries.
Installed BESS capacity in Spain grew by 589% since 2025 blackout
Some of the consequences of the blackout include a 589% increase in installed BESS capacity in Spain between April 2025 and April 2026, the introduction of renewable participation in voltage control, a greater role for gas in the generation mix, and continued progress on interconnections.
The battery cost disconnect
For years, the battery energy storage (BESS) story has followed a familiar script: costs fall, deployment accelerates, economics improve. Even when cell costs rose and system prices briefly flattened during the 2021-22 lithium price spike, the narrative largely held. Paola Perez Peña, senior principal analyst at S&P Global Energy, examines why the latest jump in lithium prices has only had limited impacts on overall BESS costs so far.
CATL raises $5 billion in share sale, Sungrow files for Hong Kong IPO for the second time
CATL has completed a roughly $5 billion share sale in Hong Kong on Tuesday. Meanwhile, Chinese inverter and battery manufacturing giant Sungrow is making a second attempt at an IPO after its initial listing bid, launched in October 2025, lapsed.
China commissions salt cavern hydrogen storage project
China’s first large-scale salt cavern hydrogen storage demonstration project has been commissioned in Henan province. The 1.5 million m³ facility validates geological hydrogen storage technology and supports renewable energy integration.
