Two Democratic US senators have tabled legislation that would provide more than $1bn to accelerate research, development, demonstration and deployment of grid-scale energy storage systems.

Senators Al Franken (Minnesota) and Martin Heinrich (New Mexico) say the proposed investment over five years will create high-skill, sustainable jobs, and make the country’s electrical grid cleaner, and more cost-effective, efficient and resilient.

“Energy storage complements renewable resources like wind and solar to increase full-time availability and provide backup power in case of emergencies,” says Heinrich, adding the Advancing Grid Storage Act encourages innovation to promote clean energy storage.