Carbon Tracer

About us

The Carbon Tracer development is a joint project between Western Power Distribution and the Carbon Trust, built by Enigma Interactive.

We wanted to create an application that uses real, live data to calculate what actually contributes to the locally generated energy that powers the electric items in your home.

The Carbon Tracer App is provided free of charge to customers of Western Power Distribution.  It is provided for information purposes only and must not be used as a basis for any commercial decision making  or, in the case of the map representations, for navigation purposes.   The data is provided to give an indication of the Energy mix and carbon intensity at a given time and date including within the historical and forecast information and may not always be completely accurate in all cases.  Reasons for this in the current version of the App include such factors as: generation plants being placed offline or operating at reduced capacity due to commercial constraints or for planned or unplanned maintenance; no inclusion of the precise details of incinerator or battery storage operating timetables, no inclusion of the details of tide tables; Inaccuracies in weather or other forecast information used by the App.

Western Power Distribution

Western Power Distribution is the company responsible for electricity distribution in the Midlands, South West and Wales. Our business serves over 7.8 million customers and we employ over 6,500 members of staff to ensure the highest quality of service.

We are regulated by Ofgem (the Office of the Gas and Electricity Markets) and we are very proud to have been awarded the Government's Charter Mark, now know as the Customer Service Excellence award, since 1992.

Here at Western Power Distribution we believe our excellent customer service record is due to our company ethos to 'Get it right, first time, every time'.



The Carbon Trust

The Carbon Trust is an independent, expert partner of leading organisations around the world, helping them contribute to and benefit from a more sustainable future through carbon reduction, resource efficiency strategies and commercialising low carbon technologies.

We believe in a future where economic prosperity and environmental sustainability go hand in hand

Created in 2001, we have developed into a world-leading and trusted expert in low carbon issues and sustainable strategies. We offer more than 16 years of unparalleled experience in the low carbon sector.

We are impartial and, our clients and parners tell us, rigorous and innovative too. We understand the need for unique solutions, which is why we think global but act local. Every day we work with new technologies, markets and business models yet, in a sector where much is open to opinion, we make the case for change based on evidence and facts. And as an organisation committed to our mission, we reinvest any surplus from our activities.


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Enigma Interactive
Built by

Enigma Interactive

Enigma Interactive, an award winning specialist digital development agency.

Based in Newcastle and London, our in-house team of 35 comprises highly skilled products, designers, developers and digital strategists all of whom are passionate about creating the very best digital experiences.


Smartphones with Carbon Tracing App logo.

Carbon Tracer App

The Carbon Tracer is available on Google Play and the App Store, for Android and Apple devices. Try moving your energy usage based on which hours are greenest or reddest to discover what level of energy efficiency you have!

Update: Please note that we're currently working on adding enhanced substation information to the apps so that they match the website - a new version will be coming soon!

Our app is now available on Google Play and the App Store on Apple Devices