CO2 widgets you see on this website and sites around the world are all hosted on servers powered by solar panels at the AISO data center in California, USA. CO2 widgets have been reliably hosted from this data center since 2009.
Mike McGee toured the facility in July 2009 after switching to web hosting services there. The photo below shows Mike with the solar panels and data center in the background. Thanks to Phil Nail, AISO's Chief Technology Officer, for taking the photo and lending his sunglasses.
Mike McGee at the AISO.net data center in Romoland (near Sun City) California, USA.