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Regional wind briefing: offshore wind offers seasonal value but costs and supply chains remain barriers
Summary
A civilian energy manager briefed WICMAC on regional generation trends: winter peaking increases the value of offshore wind off Washington’s coast, onshore coastal wind and batteries could also help — but transmission limits and nascent global supply chain for floating offshore turbines raise costs and timing uncertainty.
David Nightingale presented a technical briefing on March 18 about regional power generation trends and implications for future wind development. He emphasized that the Northwest’s highest demand peaks in winter make seasonal resource timing critical: onshore Columbia Basin wind typically peaks in spring/summer, while offshore resources off Washington’s coast show stronger winter performance that could help winter reliability.
Nightingale laid out the tradeoffs: onshore wind and utility‑scale…
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