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Analysis · A closer look

Offshore wind: compare project readiness and output separately

Use dated capacity evidence, operating milestones and a worked output calculation without assuming every announced project will deliver.

Keep the technology and region

The IEA’s 2026 review reports 2025 wind capacity additions of around 160 GW globally. Its EU offshore subset is 1 GW, down from 1.7 GW in 2024. Global wind totals cannot be relabelled as offshore additions. Neither figure establishes a project’s commissioning date or energy output.

A project readiness sheet

StatusEvidence
AnnouncedDeveloper proposal and scope
PermittedCurrent relevant approvals and remaining conditions
Financed and contractedDisclosed commitments and procurement status
Built and connectedInstallation, grid connection and commissioning records
OperatingMeasured output, period and operating boundary

Do not compress these statuses into one pipeline total without preserving their categories. A government programme’s ambition is a separate source type from an operating facility’s measurement. A cancelled or delayed project should not remain described as completed capacity.

A hypothetical energy calculation

For a fictional 500 MW facility with a constant annual capacity factor of 45%, energy is 500 × 8,760 × 0.45 = 1,971,000 MWh, or 1.971 TWh. The capacity factor is an assumption, not a forecast for a named wind farm. Curtailment, outages and delivery-point definitions need to be reflected in an actual estimate.

A headline MW total describes capacity. It cannot alone support a household-serving claim or a cost per delivered MWh. Keep the assumed output, customer demand and period explicit if such a comparison is necessary.

Ask a narrower question

For a connection decision, obtain network and project records. For a procurement decision, obtain the actual contract, schedule and specification. Leave a missing milestone unknown. A sourced global statistic provides context but cannot fill those gaps. We did not inspect or model an offshore development.

Sources and scope

Sources checked October 10, 2026. AI-assisted research and drafting. The examples, calculations and worksheets are Luminesca editorial work; they are not measured trials, first-hand reporting or an independent certification. Retains the earlier correction and verifies the limited capacity source; removes any implication that global growth certifies local project readiness. Report a specific correction with its source.