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Wind Tower Height: Resource and Curve Energy

Compare wind speed and kinetic flux at two heights using entered shear, then calculate energy changes from the same resource bins and turbine curve.

Use this result well

Inputs that matter
Reference height above ground (m), Target height above ground (m), Reference wind speed (m/s), Entered shear exponent, and 9 more
Output to expect
Power-law height and kinetic flux, Two-height power-curve energy
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

Power-law height and kinetic flux

Apply an entered wind-shear exponent between two heights and compare kinetic power density. Zero or negative shear is accepted when supported by the observation basis; this ratio is not a turbine-energy gain.

v₂ = v₁(h₂/h₁)^α; kinetic-flux ratio = (h₂/h₁)^(3α).

Two-height power-curve energy

Apply the same entered shear profile to reference-height wind-speed bins, then compare electrical energy from the same turbine curve at the two heights. Include calm and cut-out intervals in both cases.

E₁ = Σ P(vᵢ)hᵢ; E₂ = Σ P(vᵢ(H₂/H₁)^α)hᵢ. Net energy applies availability and additional losses once.

Updated: September 2026

Example Scenarios

Try this example to see the calculation, then enter actual documented values and preserve the measurement conditions. A failed or unresolved comparison is part of the record.

→ 6.997586 m/s at target height

Try this example to see the calculation, then enter actual documented values and preserve the measurement conditions. A failed or unresolved comparison is part of the record.

→ 5,071.060644 kWh change at candidate height

FAQ

Apply an entered wind-shear exponent between two heights and compare kinetic power density. Zero or negative shear is accepted when supported by the observation basis; this ratio is not a turbine-energy gain. Apply the same entered shear profile to reference-height wind-speed bins, then compare electrical energy from the same turbine curve at the two heights. Include calm and cut-out intervals in both cases.

Use the exact equipment data, measurement point, operating conditions and units described in the selected mode. Record source documents, dates and unresolved conditions in Sources and assumptions. Built-in examples illustrate arithmetic; they are not manufacturer ratings or approved designs.

Use Save planning case for an explicit local history entry. Copy MD keeps current inputs and notes; Download CSV exports the result breakdown. Export portable copies before clearing storage and save a separate case after changing equipment, conditions or measurements.

About Wind Tower Height: Resource and Curve Energy

Apply an entered wind-shear exponent between two heights and compare kinetic power density. Zero or negative shear is accepted when supported by the observation basis; this ratio is not a turbine-energy gain. Apply the same entered shear profile to reference-height wind-speed bins, then compare electrical energy from the same turbine curve at the two heights. Include calm and cut-out intervals in both cases.