The world’s largest vehicle-to-grid (V2G) project has been launched at a north London bus garage.

Large wind turbines have blades that need to be angled correctly to capture the optimum generation opportunity, and ultracapacitor maker Skeleton Technologies believes it has developed the answer.

Plans by ScottishPower Renewables to build a 50MW battery next to its Whitelee onshore wind farm have been approved by the Scottish government, with the developer hailing it as a “significant step” towards renewable energy providing the baseload for the grid.

Minnesota electric cooperative Connexus Energy has confirmed recent press reports that it is building 15MW / 30MWh of battery energy storage, while another not-for-profit, Vermont Electric Cooperative, will build a 1.9MW / 5.3MWh system in its service area.

A US state-backed organisation is partnering with the government of Singapore to build and test up to three energy storage systems using a variety of technologies on the island state.

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.