Blade Erosion Loss Estimator
AEP impact of leading-edge erosion via power-curve deviation at mid-curve winds.
Leading-edge erosion silently shaves 1โ5% off AEP by degrading the blade aerofoil โ invisible in availability stats, visible in mid-curve power deviation. Compare measured power at 7โ10 m/s against the expected curve; a consistent 3%+ shortfall across that band is the classic erosion signature and usually pays for blade repair within a season.
Between cut-in and rated wind, power grows with the cube of wind speed โ a 10% anemometer error masquerades as a 33% power problem, so verify the met signal before blaming the turbine. Persistent deviation at mid-curve winds usually means pitch error or blade soiling/erosion.
Engineering estimate from published standards and typical equipment data. Site conditions, equipment datasheets and measured data govern the real result โ confirm with a qualified engineer.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates โ verify with a qualified professional before making decisions. Read the full disclaimer.
Use the free Blade Erosion Loss Estimator online โ AEP impact of leading-edge erosion via power-curve deviation at mid-curve winds. Runs instantly in your browser: no signup, no upload, mobile-friendly.
About Blade Erosion Loss Estimator
Leading-edge erosion silently shaves 1โ5% off AEP by degrading the blade aerofoil โ invisible in availability stats, visible in mid-curve power deviation. Compare measured power at 7โ10 m/s against the expected curve; a consistent 3%+ shortfall across that band is the classic erosion signature and usually pays for blade repair within a season.
How to use Blade Erosion Loss Estimator
- 1Enter hub-height wind speed and the measured power at that moment.
- 2Adjust air density for your site and season.
- 3Read the deviation and the verdict; investigate persistent shortfalls.
Why use Blade Erosion Loss Estimator?
- โDensity-corrected expected power โ the correction IEC 61400-12 mandates
- โCubic-region physics: catches the 'small wind error, big power error' trap
- โDeviation verdicts ranked by real-world cause likelihood
- โClass-correct rated power and wind presets
Frequently asked questions
How do I know if my wind turbine is underperforming?+
Compare measured power against the expected curve at the same wind speed and air density โ persistently 5%+ low across mid-range winds is real underperformance. Single points mean nothing (turbulence, averaging); patterns across many 10-minute intervals mean money.
What usually causes power-curve deviation?+
In field order: anemometer/wind-vane error (calibration drift, mounting), pitch miscalibration, blade soiling or erosion, yaw misalignment, and controller derating you forgot about. Hardware failure is the rarest cause โ measure twice before opening the gearbox.
Why correct for air density?+
Power is linear in density: a 45ยฐC afternoon at altitude carries ~12% less air than the 15ยฐC sea-level standard. Skip the correction and healthy turbines look sick every summer. The tool corrects automatically from your density input โ see the air-density tool for site values.
A 10% wind error means how much power error?+
~33% in the cubic region โ power scales with wind speed cubed below rated. This is why power-curve checks fail first on anemometry: verify the wind measurement (calibration, icing, wake) before judging the turbine by it.
Embed Blade Erosion Loss Estimator on your website
Want Blade Erosion Loss Estimatoron your own site? Paste this snippet into any HTML page โ it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/wind-blade-erosion-loss-estimator" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Blade Erosion Loss Estimator โ ToolJolt" loading="lazy"></iframe>Related tools
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