Green Mountain Power, a utility company in Vermont, has begun using Tesla Powerwall energy storage systems in customers’ homes as a frequency regulation resource to benefit the regional grid.

Highview Power is laying claim to the first installation of a long duration liquid air energy storage (LAES) system in the United States.

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.

Sunverge Energy has signed off on deals with three electric utilities in Arizona, Florida and Vermont that will expand the company’s customer base for its storage system and Virtual Power Plant (VPP) platform.

Tesla has announced the first programme to aggregate the capabilities of hundreds of its residential and commercial stationary storage systems in a partnership with Vermont utility Green Mountain Power.

Thus far, the relationship between incumbent utilities and the rise of distributed energy storage has been a difficult one. Cosmin Laslau of Lux Research gives his quick take on one US utility’s plan to stay in the game, offering Tesla Powerwalls to customers in three different ownership models.