Separate solar RPO queried by Indian minister

India may soon review its Renewable Purchase Obligation (RPO) mechanism to give targets more suited to the environment of each state and offer more flexibility, according to energy minister Piyush Goyal.

The rise and rise of US storage

Energy storage in the US is being propelled forward by falling costs and increasingly favourable markets and policy. But for the full value of storage to be realised, numerous regulatory and fiscal barriers must still be surmounted, writes Matt Roberts, executive director of the Energy Storage Association.

20 energy storage disruptors

Andy Colthorpe and Ben Willis profile some of the companies and technologies making waves in the fast-changing world of stationary energy storage, in a feature article which originally appeared in the seventh issue of PV Tech Power.