How can the annual output for a particular wind turbine be estimated?

The annual output (kWh) of a turbine depends on the average annual wind speed “seen” by the turbine. This depends on the average wind speed for the site, the height of the tower and local site factors (eg is it a grassy hill top).
Accurate estimates can only be achieved by the installation of wind logging equipment for a period of at least a year. However, the cost and time constraints of such monitoring mean that such analysis is usually only implemented for wind farms or large turbines. Initial estimates of site suitability and turbine output can be made using the NOABL wind speed database (see below), corrections for local effects and manufacturers data. Sundog energy can provide such estimates on request.