Many people today are troubled not only by the high price of electricity and other energy sources, but are also looking for ways to live more sustainably and leave as small a footprint on the environment as possible. Solar panels are now fairly common, but what about a home wind turbine? Is it worth it, and how long does it take to pay for itself?
How do home wind turbines work?
Wind turbines use the power of the wind to generate electricity. When the wind blows, the blades spin round and drive a turbine, which produces electricity. The stronger the wind, the more electricity is generated.
There are two types of home-sized wind turbines:
- Pole-mounted: these are free-standing and are installed in a suitably exposed location, with an output of around 6 kW.
- Building-mounted: these are smaller than pole-mounted systems and can be installed on the roof of a house where there is a suitable wind resource. They often have an output of around 2 kW.
Advantages of wind turbines
Although the main advantages of any alternative energy source are probably obvious to everyone, let’s take a quick look at them:
Lower electricity bills
Wind is free, so once you have paid the initial installation and maintenance costs, your electricity costs will fall. Your only remaining costs will be for maintaining your home wind turbine.
A smaller carbon footprint
Electricity generated by wind is renewable energy and does not release any harmful carbon dioxide or other pollutants. Likewise, the waste produced when your wind turbine is manufactured is much lower overall than when fossil fuels are burned.
Storing electricity
If your home has its own battery storage, you can store surplus electricity and use it even when there is no wind.
The cost of a home wind turbine
As with other alternative sources of electricity, wind turbines involve higher purchase and installation costs. However, the return on investment is then very good.
Installation costs
The cost of a system depends on its size and how it is mounted. A building-mounted turbine costs less to install than a pole-mounted one, but these tend to be smaller and less efficient.
A 6 kW pole-mounted system costs approximately 500,000 CZK (about 23,000 USD) for the equipment and installation.
Maintenance costs
Maintenance checks are needed every few years and usually cost around 3,000 to 6,000 CZK (about 140 to 280 USD) a year, depending on the size of the turbine.
A well-maintained turbine should last more than 20 years, but during this time the inverter may need replacing, which costs 30,000 to 60,000 CZK (about 1,400 to 2,800 USD) for a large system. However, this is the only major investment you can expect if the installation is done correctly and professionally.
Savings
A well-sited 6 kW turbine can generate approximately 9,000 kWh a year, which at the current average price of 5.8 CZK (about 0.27 USD) per kWh amounts to 52,200 CZK (about 2,400 USD). We can also expect the price of electricity to stay the same or rise in the future, which would mean the investment pays for itself in approximately 12 years.
Financial support
You can also earn quite good sums for surplus electricity sold to the grid, depending on your contract with the distributor, which further reduces the cost of this investment. Because this is an environmentally friendly way of generating electricity, you can also apply for grants from European funds.
What to do and consider before installation
If you want a small wind power system at your location, you should have a general idea of:
- the wind strength at your location, including an estimate of the system’s annual output, and therefore the right size of turbine and tower,
- zoning requirements and agreements in your area,
- the options for connecting to the electricity grid and selling surplus electricity,
- the economics, payback and incentives for installing a wind system at your location.
If you think through all of these steps and find that a home wind turbine is a good solution for you, remember to contact a professional for the installation, who can advise you on many issues and, above all, will provide a guarantee for the installation.
USD amounts are approximate, converted at the Czech National Bank rate of 21.75 CZK per USD on 9 October 2026.
