Fragmented, ageing and designed for a bygone era, the US grid is one of the renewables industry’s defining challenges for the decade ahead; the energy transition is hurtling forward and the grid is woefully unprepared.

Transmission networks are increasingly congested, threatening to undercut key new growth markets such as corporate off-take deals. This congestion makes it difficult for regional grids to export power when the supply of wind and solar is high, increasingly pushing wholesale spot markets into negative prices, which in turn makes it harder for existing renewables projects to make money.