Renewable power is now the cheapest new electricity almost everywhere

The cost of electricity from new solar farms has fallen by around ninety per cent since 2010, and onshore wind by more than half, according to the agency that tracks them. [1]

In most markets a new solar or wind plant now undercuts a new coal or gas plant without subsidy.

The grid is the bottleneck

Generation is the easy part. Connecting it needs transmission lines that take a decade to permit, and storage to cover the hours when the sun and wind are absent. The IEA's outlook names grid investment as the constraint that now sets the pace. [2]