Greenhouse Gas Emissions

(1) GHG emission figures expressed in tonnes of carbon dioxide equivalents (tCO₂e) whereby emissions of carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), the fluorinated gases (HFC, PFC, SF₆) are shown in terms of the equivalent emissions from CO₂. A breakdown of emissions by GHG is available at www.pennon-group.co.uk/sustainability/greenhouse-gas-emissions

(2) n/a Scope 3 GHG emissions not calculated for discontinued business.

(3) Based on relevant Group revenue for 2020/21. e.g. revenue for Continuing Group only where related to Continuing Group GHG emissions.

(4) Group including discontinued business includes Viridor GHG emissions for Scope 1 (471,777 tCO₂e) and Scope 2 (3,263 tCO₂e) . These figures have been independently assured by DNV

* For ‘Water’ measure Ml = measured water into supply. For ‘Wastewater’ measure Ml = full measured flow to treatment

Scope 1 (direct GHG emissions) GHG activities owned or controlled by our organisation that release emissions straight into the atmosphere. For Pennon, primary Scope 1 GHG emission sources during 2020/21 include GHG emissions from stationary plant, fugitive emissions from air conditioning plant and wastewater treatment and transport related GHG emissions from our own vehicles and fleet and for the discontinued business combustion related emissions from ERFs and fugitive emissions from landfill.

Scope 2 (indirect GHG emissions) GHG emissions released into the atmosphere associated with our consumption of imported electricity.

Scope 3 (other GHG indirect emissions) GHG emissions that are a consequence of our actions, which occur at sources which we do not own or control. Further details of our 2020/21 Scope 3 GHG emissions estimates are provided below.

Note:

Waste business (Viridor) GHG emissions to point of sale 8 July 2020. The water business figure provided here includes the impact of emissions from our two hydroelectric power stations which do not form part of our annual reporting to the water regulator Ofwat since these sites are outside of the Ofwat regulated contract. Group total includes 186 tCO₂e from Pennon Water Services and Group shared services.

Scope 3 emissions data notes:

^* Category 3 and Category 6 included in DNV 2020/21 Assurance.

^~ Includes GHG emissions associated with our water service business – Pennon Water Services – and Group shared services though considered immaterial as estimated at <1% of total Group GHG emissions.