How much space do I need to reserve for my solar system?

Answer: 
The solar space heating system usually occupies between 20-30% of the roof space assuming the building is a one story building; for other applications (steam, cooling and photovoltaic) Millennium can provide an initial estimate of space required accommodating the project needs during the initial feasibility study for the project. In all cases, Millennium Energy Industries team usually inspects the place prior to propose.
English