One of the largest wind power projects planned for the US Atlantic, the $10bn Coastal Virginia Offshore Wind (CVOW) array being developed by utility Dominion Energy, could overshoot its capital expenditure forecast by over 20%, potentially breaching budgetary thresholds set by the commonwealth, according to regulator the Virginia State Corporation Commission (SCC).

This would raise serious questions about the commercial viability of the 2.6GW mega-development, which has already awarded $6bn in supplier contracts and seen investment commitments from sector giants including Siemens Gamesa, which has pledged to build a $200m