The North American subsidiary of international investor-owned energy supplier E.ON has begun construction on its first energy storage project.

Commercial energy storage designer Green Charge has teamed with Pacific Gas and Electric (PG&E) to deliver grid services from distributed energy storage in San Jose, California.

Energy storage software and integration specialist Greensmith Energy will partner power firm E.ON Climate and Renewables and the utility Tucson Electric Power (TEP) to provide software control for a utility-scale energy storage system next to a solar array in Arizona.

Unsubsidised, commercial solar-plus-storage projects of the type being executed in Puerto Rico could demonstrate how to overcome many of the challenges imminent for the world’s PV markets, according to one company with experience in the field.

French manufacturer Leclanche will supply battery storage systems to a 13MW capacity storage project with 53MWh of storage duration in Ontario to be used for voltage control and in providing reactive power support to the grid.