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Energy transition news from EnergyNews.biz: hydrogen, energy storage, SMRs, grids and renewables, every day.

The efficiency limitations of water electrolysis remain one of the largest technical and economic barriers to scaling green hydrogen production. While renewable electricity costs have declined sharply over the past decade, the oxygen evolution reaction inside electrolyzers continues to require high energy input, slowing system efficiency and sustaining dependence on expensive precious metal catalysts such as iridium and ruthenium.

The United States installed 9.7 GWh of new energy storage capacity during the first quarter of 2026, setting a record for the period and reinforcing how rapidly battery deployment is becoming tied to grid reliability concerns, electricity price volatility, and the accelerating power requirements of artificial intelligence infrastructure.