Some $2.2trn in capital investment will surge into developing new generation capacity around the world between 2017 and 2021 as the renewable energy build-out “transforms the current power landscape”, according to the latest sector report from Frost & Sullivan.

The analyst group sees solar and wind power additions accounting for capital spends of $603.4bn and $553.7bn, respectively, during this period, with ever-cheaper battery energy storage, an upswing in merger and acquisition activities, and the rise of “disruptive energy start-ups” all contributing to “tremendous growth” in the power sector.