Power grids: when will wind and solar peak?

Wind and solar peak at 50-55% of power grids, without demand-shifting or storage, before their economics become overwhelmed by curtailment rates and backup costs. More in wind-heavy grids. Less in…

Enhanced geothermal: digging deeper?

Initial costs of enhanced geothermal projects are likely 10-15 c/kWh-th, equivalent to $40/mcfe, but capex deflation can reduce costs by at least 30-50%, possibly more...

…and as pilot projects have de-risked novel well designs. This 18-page report re-evaluates the energy economics of geothermal from first principles. Is there a path to cost-competitive, zero-carbon baseload heat?…

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