As an EPC contractor, Mortenson will play “various roles” in the small but rapidly growing storage market, including building both grid-scale and behind-the-meter storage assets for customers, the Minnesota-based company says.

The move follows the September launch of Mortenson rival RES Americas into the energy storage and distributed solar markets.

At present, battery-based storage systems make the most economic sense in the US when integrated with commercial and industrial buildings, as clients look to avoid the hefty demand charges imposed by utilities.