through the year. It is easy to see the variation of the boiler output
over the rest of year as the heating load is varied.
Table 10 shows the technical data related to the operation of the
optimal system proposed in solution 3. Annual capacity factor for
wind turbine and the biomass boiler are estimated as 31.5% and
25.4%, respectively. Annually, 201.2 MWh of electricity produced by
wind turbine is sold to the grid which can be an income for the
building.