Insulation beats solar panels. It’s not only much cheaper to get, but also to maintain.
The body heat of a family of 4 is enough to heat a well insulated house.
Solar panels are there to supply electricity for use. The last step of passive houses are zero-energy houses, which means that they don’t get electricity from the grid.
The body heat of a family of 4 is enough to heat a well insulated house.
Solar panels are there to supply electricity for use. The last step of passive houses are zero-energy houses, which means that they don’t get electricity from the grid.