yCalculator

Wind Turbine Payback Calculator

Last updated: April 2026

Turbine details

Costs and rates

Generation headline

Annual generation

13,140 kWh

Equivalent to 487% of average UK household electricity usage.

Capacity factor

25.0%

Payback

Payback period

14.7 years

Annual benefit

£1,221/year

Lifetime saving

£6,427

Annual breakdown

Bill savings£1,288
SEG income£434
Maintenance cost-£500
Net annual benefit£1,221

Wind speed sensitivity

Wind speedGenerationAnnual benefitPayback
4.0 m/s7,884 kWh£53333.8yr
5.0 m/s <-13,140 kWh£1,22114.7yr
6.0 m/s18,396 kWh£1,9109.4yr

Planning note

Pole-mounted turbines above a certain height usually require planning permission. Check with your local council before purchasing.

How does this compare to solar panels?

A 4kWp solar system in your area generates approximately 3,400 kWh/year at a cost of GBP6,000-GBP8,000. Your 6.0kW turbine generates 13,140 kWh/year.

Use our Solar Panel Calculator

Are domestic wind turbines worth it in the UK?

Domestic wind turbines can be cost-effective in rural, exposed locations with average wind speeds above 5 metres per second. In urban areas or sheltered rural locations, poor wind resource makes turbines uneconomical. Before investing, check your site's wind speed data using the NOABL database.

How much electricity can a home wind turbine generate?

A 6kW pole-mounted wind turbine in a location with 5 m/s average wind speed generates approximately 13,000 kWh per year - enough to cover the typical UK household's entire electricity usage. Generation varies significantly with wind speed because power output rises sharply as wind speed improves.

Do I need planning permission for a wind turbine?

Pole-mounted wind turbines almost always require planning permission. Some building-mounted turbines may qualify as permitted development if they meet specific criteria - but building-mounted turbines in urban areas typically underperform significantly. Always consult your local planning authority before purchasing.

What does this mean?

This calculator is designed to help you understand the likely number before you make a decision or start an application.

Your result should be checked against official UK guidance, especially if your circumstances include dependants, exemptions, prior leave, or a complex immigration history.

Treat the figure as a planning tool rather than legal advice. Where the answer affects an application deadline or major payment, speak to an authorised adviser.

Related Energy calculators

energy home-calculators

Energy Bill Calculator

Calculate your estimated gas and electricity bill based on your usage and current rates

Calculate →

energy home-calculators

Electricity Cost Calculator

Calculate the running cost of any electrical appliance per hour, day, month and year

Calculate →

energy home-calculators

Solar Panel Payback Calculator

Calculate how long solar panels take to pay back their cost and your lifetime savings

Calculate →