FY23 carbon intensity restated from 56% to 55% reduction FY23 carbon emissions intensity KPI was restated from 56% (as presented in FY23 Annual Report) to 55% following review of carbon emissions data. Noted in footnote d to the operational KPIs page.
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BT Sport disposed; Sports JV formed with Warner Bros. Discovery Completion of transaction forming 50:50 Sports JV (TNT Sports) with Warner Bros. Discovery, combining BT Sport and Eurosport UK. BT no longer consolidates BT Sport; accounts for 50% ordinary equity interest under equity method. This removed approximately £238m of adjusted revenue and added £71m EBITDA on a pro forma basis.
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100% renewable electricity via PPAs, REGOs, EACs and green tariffs under RE100 BT Group, one of the UK's largest private electricity consumers, achieved 100% renewable electricity globally in November 2020 and maintains this annually. In FY23, 23.3% of worldwide electricity demand was met via corporate Power Purchase Agreements (PPAs) — 25.3% of UK total — including a new 10-year PPA with TRIG from a 35MW Scottish wind farm. The remainder is sourced through green tariffs or unbundled EACs (REGOs, GOs, I-RECs). BT also purchased 2,500 GWh of renewable electricity and continues to seek new PPA and direct-wire opportunities to drive additionality. BT has been a RE100 member since 2014.
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Carbon offsetting and removals approach for residual net-zero pathway BT states that its operational net-zero target (Scope 1&2 by 2031) is dependent on external factors including EV infrastructure availability and viable low-carbon building heating options. As investigations develop, BT acknowledges that 'some form of carbon offsetting will be required to achieve net zero', but has not yet committed to a specific removals strategy. No project-based carbon credits were cancelled in FY23. The firm's approach is currently unsure on whether permanent carbon removals (e.g. DAC, BECCS) will be used at target year.
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Primary: Buildings decarbonisation via Better Workplace Programme consolidation BT is consolidating its UK estate from ~270 office buildings to ~30 modern locations under the Better Workplace Programme. New buildings must achieve BREEAM Excellent or WELL rating. In FY23, the new Bristol Assembly Building was fitted with electric rather than gas heating (saving ~140 tCO2e initially, rising to 500 tCO2e as the estate reduces). Electric boilers were refitted across 19 buildings saving ~193 tCO2e in FY23. Oil and gas heating systems in retained exchange buildings are being replaced with low-carbon alternatives including heat pumps.
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High assurance (AA1000AS) verification of Scope 1, 2 and 3 emissions by LRQA LRQA provided annual independent reasonable assurance (high assurance) against AA1000AS v3 for BT Group's Scope 1, 2 and Scope 3 (cats 1-8, 11, 12) emissions data as reported in CDP submission and Annual Report.
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Primary: Fleet electrification: transitioning 34,000-vehicle fleet to EVs by 2030 The commercial fleet (34,000 vehicles) accounts for ~80% of BT Group's Scope 1 emissions. BT is an EV100 member committed to converting the majority of its fleet to electric or zero-emission vehicles by 2030 where technically and economically viable. In FY23, over 1,000 new EVs were added bringing the total to 2,400 EVs which travelled 7.9 million miles saving 2,200 tCO2e. Openreach is targeting ~4,000 EVs by March 2024. BT engages with UK government via the UK Electric Fleets Coalition to advocate for EV infrastructure and incentives.
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Dependent: Supply chain decarbonisation: SBTi-aligned 42% reduction in Scope 3 cat 1-8 by 2031 73% of BT's end-to-end carbon emissions come from the upstream supply chain. BT has an SBTi-validated target to cut supply chain (Scope 3 cat 1-8) emissions by 42% by March 2031 vs FY17 baseline; currently 20% cut achieved. Key mechanisms include: climate clauses in 11 key supplier contracts, mandatory net-zero SBTi targets for new contracts >£25m, CDP supply chain programme (200+ suppliers reporting), supplier engagement campaigns (140+ suppliers in FY23), and joint operator engagement with Deutsche Telekom, Swisscom and Telefonica on common suppliers.
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Primary: Network energy efficiency: legacy network retirement, cooling upgrades and 5G migration BT's network consumes ~95% of its electricity (c.2.29 TWh UK annually). Key levers include: retiring the analogue PSTN (equivalent to powering 175,000 homes), shutting down the 3G network from early 2024 (3G uses 35% of RAN energy despite <2% of data), and upgrading >12,000 cooling units to Adiabatic systems (saving 329 GWh/year and eliminating F-gas). In FY23, global energy consumption fell 77.7 GWh (2.85%) to 2,645 GWh. 5G is up to 90% more energy efficient than 3G per unit of data.
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Dependent: Customer carbon avoidance: helping customers avoid 60 Mt CO2 by 2030 via FTTP, cloud, IoT, 5G BT has set a target to help customers avoid 60 million tonnes of CO2 by March 2030 through full fibre broadband (FTTP), 4G/5G, cloud computing, IoT and related technologies. In FY23, customers avoided over 935,000 tCO2e. Carbon-saving products generated ~£5.754bn revenue (28% of total); BT aims to grow this to 45% by 2030. New tools launched in FY23 include a Digital Carbon Calculator and Carbon Network Dashboard to help business customers baseline and reduce their ICT carbon footprint.
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