Photovoltaic Panels
The lower, main section of roof has two adjustable-tilt rows of photovoltaics (each with five panels apiece). These PVs don't track the sun, but they are raised and lowered seasonally to catch the sun's rays at better angles. They generate up to about two kilowatts of electricity. Their average annual output, about one-fourth as large, meets roughly a third of the building's electricity needs, nearly all of which are for the RMI office. Advances in PV technology enable today's panels to be much less conspicuous than these; indeed, modern PVs are designed so well they can be used as wall and roofing material.
Next: Solar Hot Water System
