Harnessing the wind to generate electricity

Is Installing a Wind Turbine Worth it?

Written-by

Janet Richardson

Reviewed-by

Richard Burdett

Updated on

Jan 07, 2026

Read Time : 1 Minutes

Is Installing a Wind Turbine Worth it?

Assessing whether installing a wind turbine is viable involves taking into account the wide range of factors that have been listed in the navigation panel to the left.

If the wind speed at the proposed site is less than around 5m/s - which is likely to be the case around most urban and suburban properties - it is advisable to look into other renewable energy options Similarly, if the proposed site is not free from turbulence-causing obstructions such as trees, hills and other buildings, it is unlikely that it will be suitable for wind turbines.

Compared to other renewable energy sources such as solar PV and heat pumps, wind turbines require a large area on which to be built. Again, this is likely to preclude property owners in urban and suburban areas from installing pole-mounted turbines.

Wind Turbine System

In financial terms, the initial capital outlay associated with wind turbines is far higher than that of other renewable energy sources: a typical 5kW wind turbine system costs in the region of £23,500, while a PV solar system of a similar power output can cost around £10,000.

Despite the high initial cost, however, well-placed wind turbines - particularly those in exposed coastal areas and which receive an average wind speed of approximately 6m/s - can generate a significant amount of energy and therefore present an excellent return on investment.

This is down to a combination of electricity bill savings, export payments under the Smart Export Guarantee (SEG), and high electricity prices. If you own a large area of suitable land, wind turbines may provide a significant source of constant income, and if you decide to rent your land, you will generally bear no financial liability.

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Approximate costs and pay-back periods for wind turbines of varying sizes and investments

Small Wind Turbine (10 kW)

Cost: approximately £30,000
Annual Energy Production: up to 25 MWh
Annual Revenue: up to £2,500
Maintenance and Operation Costs: around £500
Net Annual Revenue: around £2,000
Pay-back Period: typically 15 years

Medium Wind Turbine (100 kW)

Cost: approximately £300,000
Annual Energy Production: up to 250 MWh
Annual Revenue: up to £25,000
Maintenance and Operation Costs: around £5,000
Net Annual Revenue: around £20,000
Pay-back Period: typically 15 years

Large Wind Turbine (2.5 MW)

Cost: approximately £3,500,000
Annual Energy Production: up to 6,500 MWh
Annual Revenue: up to £650,000
Maintenance and Operation Costs: around £100,000
Net Annual Revenue: around £550,000
Pay-back Period: indicatively 6.36 years

With careful site assessment, realistic financial expectations and professional advice are essential when deciding whether a wind turbine installation is a suitable and cost-effective option.

The Renewable Energy Hub has a database of Wind Turbine installers that operate in the UK. Click here to search for installation companies that cover your area.