Frequently Asked Questions
How do you calculate website carbon emissions?
We use the rather wonderful carbon API from WebsiteCarbon. The only difference is we don't check based off green certificates. We calculate where your resources come from and the countries that they are hosted in.
These calculations are based of the 1.8 kWh/GB from a 2017 study On Global Electricity Usage of Communication Technology: Trends to 2030 and you can read up more about calculating website carbon emissions on the WholeGrain Digital blog... thanks Tom (cracking article)!
Why don't you check for green certificates?
We think it's a bit too easy to simply buy a certificate and become a green host. For us it's about where the resources that make up your website come from, what's the energy production like in those countries that run those servers.
Take a look at Electricity map to give an idea of where your power comes from and what is being produced.
When I look in dev tools the values are different to EcoPing, what's going on?
EcoPing gets this information in a very similar way. For us though we wait until networkIdle2 in Chrome has loaded all the resources, and then wait until there are no more than 2 network requests for 500ms and take the values then.
Aren't many cloud services already renewable & carbon neutral?
Companies like Amazon and Google have committed become carbon neutral by 2025 (Amazon) and 2030 (Google) . Current commitments for both seems to be based on renewable energy credits and offsets. There are datacentres running of renewable energy for both Amazon & Google, or like one we use from Microsoft Azure that's based in Washington state which runs off renewable hydroelectric power.