Home Wind Turbine Calculator
Annual energy estimate for a 1 kW wind turbine via Weibull statistics — honest small-wind math.
Honest small-wind math: a 1 kW turbine at suburban 4.5 m/s mean produces shockingly little — usually a few hundred kWh/yr. Run your numbers before buying; rooftop solar nearly always wins at low wind speeds.
AEP integrates a standard cubic power curve (cut-in 3, rated 12, cut-out 25 m/s) over the Weibull wind distribution fitted to your mean speed and shape factor. Screening accuracy ±10% — bankable studies need the OEM curve and on-site met data.
Engineering estimate from published standards and typical equipment data. Site conditions, equipment datasheets and measured data govern the real result — confirm with a qualified engineer.
Use the free Home Wind Turbine Calculator online — Annual energy estimate for a 1 kW wind turbine via Weibull statistics — honest small-wind math. Runs instantly in your browser: no signup, no upload, mobile-friendly.
About Home Wind Turbine Calculator
Honest small-wind math: a 1 kW turbine at suburban 4.5 m/s mean produces shockingly little — usually a few hundred kWh/yr. Run your numbers before buying; rooftop solar nearly always wins at low wind speeds.
How to use Home Wind Turbine Calculator
- 1Enter the turbine rating and your site's mean wind speed at hub height.
- 2Adjust the Weibull shape factor for your wind regime.
- 3Read AEP, capacity factor and energy per MW installed.
Why use Home Wind Turbine Calculator?
- ✓Weibull statistics — how wind is actually distributed, not just averaged
- ✓Numerical integration over a standard power curve, transparent assumptions
- ✓Regional wind-speed and shape-factor presets
- ✓AEP, CF and per-MW yield for instant comparisons
Frequently asked questions
How is annual energy production estimated from mean wind speed?+
Mean speed alone underestimates badly — energy lives in the distribution's gusty tail. The Weibull fit (mean + shape factor k) reconstructs the full speed histogram, and integrating the power curve over it gives AEP within ±10% of professional screening tools.
What is the Weibull shape factor k?+
It describes wind steadiness: k≈1.6–1.9 means gusty/variable (some temperate sites), k≈2 the common default, k≈2.5–3+ remarkably steady trade winds (Brazil's northeast, parts of Tamil Nadu). Same mean speed, different k, can move AEP 10–15%.
What mean wind speed makes a site viable?+
Rough gates at hub height: below 5.5 m/s rarely pencils for grid-scale; 6.5–7.5 m/s is solid; above 8 m/s excellent. Small wind needs the same speeds at far lower hub heights — which is why most residential sites fail (see the small-wind tools for honest math).
Why does the Home Wind Turbine Calculator differ from my consultant's number?+
Screening vs engineering: this integrates a standardized power curve over fitted statistics; bankable studies use the OEM's exact curve, on-site met-mast data, wake and loss models. Expect ±10% agreement — close enough to rank sites and sanity-check claims, not to finance them.
Embed Home Wind Turbine Calculator on your website
Want Home Wind Turbine Calculatoron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
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