At around 5MW, Apple’s new solar roof could make it among the biggest in the US, power a million AppleTVs

Today’s updated Apple Headquarters Spaceship campus plans include a roof made almost entirely out of solar cells, according to details released today. With a building as large as Apple’s, that puts it in the top corporate solar installations in the world and the biggest in the US.  The current title holder is the 4.26 MW system in Edison New Jersey and another being built by ToysRus in sunny NJ is rated 5.38MW


From today’s plans

From today’s plans, we can estimate the roof surface area to be over 750,000 square feet.  Assuming (conservatively) 2/3rds of that, or 500,000 square feet of that is utilized for solar, that gives Apple close to a 5MW installation on the amin building alone. On average or as a general “rule of thumb” modern photovoltaics (PV) solar panels will produce up to 10 watts per square foot of solar panel area.  Since Cupertino is generally favorable in terms of weather and Apple will obviously use the latest Solar technology developed in the coming years, that could give Apple over 5,000,000 Watts of power to play with.  Additionally, Apple has a few other buildings on campus that could be outfitted with solar roofs. The plans list a photovoltaic roof canopy of 320,000 sq.ft. just on the parking building. Read more