We have one of these at the eBay/PayPal campus in San Jose. It apparently powers almost the entire green building and I haven't heard of any issues yet - though

We have one of these at the eBay/PayPal campus in San Jose. It apparently powers almost the entire green building and I haven't heard of any issues yet - though I imagine the setup here is recent anyway. I am all for green so it's an awesome initiative and I bet the government subsidies don't hurt either.