Wind fleet age profile
Where and when does the decommissioning cost problem become acute? Derived from public turbine registers and IRENA capacity data, this tool maps the share of installed wind capacity approaching end-of-life by country and US state, and projects annual GW reaching each age threshold through 2035.
Share of fleet at or beyond age threshold
Colour intensity shows the percentage of each market's total installed wind capacity that was commissioned at or before the selected age threshold. Hover over a country or state for details.
GW reaching age threshold per year
Each bar shows the total wind capacity (GW) commissioned exactly the threshold number of years earlier — the cohort entering its end-of-life window in that year. Hover a bar for a market breakdown. Adjust the slider to explore different threshold assumptions.
Data sources and approach
Annual wind capacity additions by country, covering both onshore and offshore wind. No modelling assumptions are applied: all figures represent observed historical deployment records.
- The age threshold represents years since commissioning. A turbine commissioned in 2006 reaches a 20-year threshold in 2026.
- Repowering activity is not deducted. MW shown may include turbines that have already been repowered in situ; actual decommissioning volumes will be lower in markets with active repowering programmes (particularly Germany).
- Offshore wind capacity is included where reported in IRENA data. Offshore fleets are generally younger and face different decommissioning economics than onshore assets.
- Data for China reflects the rapid post-2005 build-out; its pre-threshold fleet is negligible relative to total installed capacity.
- Source vintage: IRENA IRENASTAT 2024; EIA USWTDB Q4 2024. Country totals may differ from other published sources due to inclusion of offshore capacity and rounding.