Live Carbon Ranking

LocationCostCO2e/hour
Iceland (Greenqloud)$0.580.000 kg
London (Rackspace) **$0.960.000 kg
São Paulo (aws)$0.920.060 kg
Oregon (aws)$0.640.112 kg
Bay Area (aws)$0.720.154 kg
Bay Area (Azure)$0.640.154 kg
Amsterdam (Azure)$0.640.241 kg
Tokyo (aws)$0.740.262 kg
Dublin (Azure)$0.640.300 kg
Dublin (aws)$0.720.300 kg
Virginia (aws)$0.640.319 kg
Virginia (Azure)$0.640.319 kg
Chicago (Azure)$0.640.374 kg
Chicago (Rackspace)$0.960.374 kg
Hong Kong (Azure)$0.640.400 kg
Singapore (Azure)$0.640.428 kg
Singapore (aws)$0.720.428 kg
Dallas (Rackspace)$0.960.541 kg
San Antonio (Azure)$0.640.544 kg

Cloud computing uses almost 2x as much power as the whole of the UK. These ratings show you the greenest place to send work right now.

These are the latest modelled CO2 emissions per hour for a m1.xlarge or equivalent for popular cloud locations. Our data and analysis are based on assumptions and represent opinions not facts. We aim to update our models as better data becomes available.

Use Customise to receive a personalised recommendation based on your preferred tradeoff between cost and emissions. Click on a location name to go directly to that provider.

Contact us to request ratings for new locations.

** Rackspace purchase renewable energy certificates for the power used by their London data centre. This means that they use normal grid power, but that they have purchased the right to the renewable energy in that grid.