Hormuz blockade leaves offshore wind revival facing a "dark cloud" as LNG costs climb
Europe's offshore wind recovery is colliding with Hormuz-driven LNG cost spikes, squeezing project economics even as investor capital returns.
Oil and LNG tankers resumed switching off AIS transponders when transiting the Strait of Hormuz after Iranian attacks on commercial ships during the week of 2026-07-06, OilPrice.com reported on 2026-07-13. The darkening of vessel signals makes LNG cargoes harder to track and weakens the supply flexibility European gas security depends on.7
ICE Endex TTF front-month stood at €66.50/MWh at Monday's close (2026-08-25), and German baseload power traded at €136.90/MWh in the same session, both markets reflecting a sustained pricing of prolonged Gulf supply disruption. Gas-fired generation remains the marginal price-setter across much of Europe, and each euro of LNG disruption premium feeds directly into power prices.3
Offshore wind developers are caught in the middle. The Hormuz crisis has sent capital back toward renewables — investment firms managing roughly $7.4 trillion in assets completed a UKSIF survey showing 87% of respondents expect global and UK-specific investment in renewable energy projects to rise. But the same supply shock is inflating backup generation and grid-balancing costs that wind projects depend on to make their economics work.2
LNG has no pipeline fallback. Unlike oil, a switch to pipeline flows is not an option when sea lanes close, a gas analyst told Montel on Thursday (2026-05-21). Italy's government decree aimed at cutting energy costs will only partially offset the impact of a prolonged blockade, analysts told Montel, constrained by the scale of the supply shock itself.1,3
Ghost flows have cushioned but not replaced what was lost. Visible commercial traffic through the Strait has plummeted to roughly 15% of pre-war levels, according to JPMorgan. Clandestine flows ran at 2.1–2.9 million barrels per day in May, with the share of outbound laden vessels transiting dark rising to 65.2% that month, Vortexa data showed. Piper Sandler's Jan Stuart estimated about 2.9 million barrels per day moved through in May, including roughly 900,000 barrels of "ghost" transits with AIS signals switched off. "There has been far better [supply]," Stuart said in a CNN report.4
Those clandestine volumes are still a fraction of the 15–16 million barrels per day of pre-war throughput. Lower Chinese imports, strategic reserve releases, cargo rerouting, and some demand destruction have absorbed part of the shock. JPMorgan estimated clandestine flows reached about 2.1 million barrels per day in the final two weeks of May.4
The Oxford Institute for Energy Studies said on Tuesday (2026-06-16) that the disruption is likely to accelerate global electrification by raising fossil fuel costs, underpinning long-term demand for wind capacity. But agency forecasts on the timeline diverge. Fitch Ratings' base-case Brent price of $87 a barrel for 2026 assumes the Strait reopens; J.P. Morgan's base case, outlined by head of global commodities strategy Natasha Kaneva in a report dated Thursday (2026-06-04), also assumed a June reopening. WoodMac found "no consensus" on resolution, with one scenario showing demand growth of 45%. HSBC's note dated 2026-05-06, authored by Senior Global Oil & Gas Analyst Kim Fustier, assumed Hormuz traffic and Gulf output gradually restart.5,6
ICE Brent crude front-month traded at $86.85 a barrel as of 2026-08-26 00:48 UTC, just below Fitch's $87 average assumption — a margin that erodes quickly if clandestine flow volumes slip or the blockade stretches further into the third quarter.5
For wind developers, the near-term squeeze and the long-run opportunity pull in opposite directions. TTF at €66.50/MWh makes gas-fired generation expensive enough to justify wind investment on a levelised cost basis, but it also complicates hedging of construction-period costs. WoodMac's unresolved scenario range leaves project finance assumptions exposed to wide commodity swings, and the 87% expectation of rising renewables investment in the UKSIF survey is not a committed project pipeline. How long Hormuz remains effectively closed is the variable that neither the investment community nor the agencies have been able to call.2,5