Operation & Maintenance

O&M costs are related to a limited number of cost components, including:

• Insurance;

• Regular maintenance;

• Repair;

• Spare parts;

• Administration;

Sub 250kw have annual maintenance costs with an average of around 3 per cent of the original turbine investment. Newer turbines are on average substantially larger, which would tend to lower maintenance costs per kW installed power. For newer machines the estimates range around 1.5 to 2 per cent per year of the original turbine investment.

Most of maintenance cost is a fixed amount per year for the regular service of the turbines, but some people prefer to use a fixed amount per kWh of output in their calculations. The reasoning behind this method is that tear and wear on the turbine generally increases with increasing production.

Wind NI can provide fully managed O&M on our client’s behalf, please contact us for more information.