We’re focusing on three areas to become a net zero carbon emissions business by 2045: switching on to renewables, decarbonising our buildings and transitioning to a low carbon fleet. 

Our worldwide greenhouse gas emissions

  • BT consumes nearly 1% of the UK’s entire grid electricity supply and have long been a pioneer in the use of renewable supplies. We’re part of the RE100 campaign and we’re using our purchasing power – and our relationships with colleagues, customers and suppliers – to drive the market for renewable power.

    100% of the electricity we directly purchase in the UK from energy suppliers is renewably sourced, of which 16% is from our Power Purchase Agreements. Worldwide, 92% of our total electricity consumed is renewably sourced, an increase from 87% last year. By the end of 2020, we aim to source 100% renewable electricity worldwide, where markets allow.

  • Shrinking carbon emissions from the 6,000 buildings in our UK operations can make a sizeable difference to our footprint. This year, we invested £45.3m in energy management projects in the UK, which cut operating costs and contributed to a global energy reduction of 65GWh of energy.

    Such investments have saved us £343m overall since 2009/10. This year, we replaced over 2,000 cooling systems with those that use water and fresh air instead of greenhouse gases.

  • We have nearly 34,000 vehicles in our fleet, including more than 28,000 used by Openreach engineers to build and maintain our networks across the UK. This fleet – the country’s second largest – makes up two thirds of our operational emissions.

    To shrink the carbon footprint of our fleet, we’re committed to make the transition from conventional diesel and petrol vehicles to those that run on electricity and alternative fuels. We aim to use electric vehicles (EVs) where this is the best technical and economic solution.

    We’re also working to make our existing fleet more efficient. We replace older vehicles on an annual basis with new vehicles which meet the latest EU emissions standards, and coupled with lighter equipment racks, the latest models can cut fuel use and emissions. We’re also using telematics technology to help drivers make fuel go further and we’re trialling specialist ‘green packs’ that use batteries rather than diesel engines to power roadside engineering equipment.

Overall, we cut the total Scope 1 & 2 emissions from our global operations by 18.6% this year to 243Ktonnes of CO2e. Since 2016/17, we’ve reduced our carbon intensity by 42% to 18 tonnes of CO2e per £m value added – on our way to our 87% reduction target for 2030. See supporting data for more on our performance.