We’ve worked out the carbon footprint of our emails

In our latest blog post we worked out the carbon footprint of our emails.

Recently, one of our members asked us about the carbon impact of sending fancy emails with large images and PDFs attached. We think it’s really important that any business can measure their full CO2 impact, so we love getting questions like this.

After lots of number crunching that we explain here, we worked out the carbon impact of sending Bulb emails (~ 5 million 1MB emails a month) is 63 tonnes of CO2 a year. We’re a carbon neutral company, which means we offset all of our emissions. That includes CO2 created by sending emails.

We think that carbon impact has to be balanced with the role images play in convincing people to switch to (and stay with) a renewable energy supplier. They can make the world of energy more engaging and easier to understand – and they can add some joy. And being with a renewable supplier like Bulb can shrink your carbon footprint by 3.4 tonnes of CO2 a year.

That being said, we’re always trying to do better. Our engineers are looking at ways we can reduce the size of the images and PDFs we send to our members, and we’ll continue to make sure as many of our servers as possible are with companies supplied by renewables.

Did you know the carbon footprint that emails, PDFs and images had? Are there any other aspects of daily life you’d like to better understand the carbon emissions of?

Personally I’m for a larger illustration to brighten someone’s email inbox, but maybe others aren’t… :email: