Phoenix Energy Responsible Business Report 2026

Water The water cycle is expected to undergo significant change as a consequence of climate change. Water availability is becoming less predictable in many places, and increased incidences of flooding threaten to destroy water points and sanitation facilities and contaminate water sources. Phoenix recognises that ensuring that everyone has access to sustainable water and sanitation services is a critical component of climate change mitigation. Phoenix has committed to investigating improvement measures to reduce the volume of water consumed as FRQVHTXHQFH RI RXU RSHUDWLRQV DQG WR FRQVLGHU PHDQV IRU ZDWHU UH F\FOLQJ UH XVH H J UDLQ ZDWHU FDSWXUH Summary information on Phoenix’s water use is provided in the table below:

Carbon Offsets Together with the low carbon projects indicated above, we are actively progressing carbon offsetting projects year on year. These include: • Continued partnership with the Conservation Volunteers, supporting the planting of 8,000 native trees annually until 2031; • &RQWLQXLQJ WR UHGXFH WKH FDUERQ IRRWSULQW RI KHDWLQJ LQ 1, LQ WKH VKRUW WHUP E\ FRQYHUWLQJ customers from more polluting fuels to natural gas, and in doing so, provide a vehicle towards the long term move to net zero options; • Performing c. 3,400 energy audits with domestic householders each year, providing a range of energy efficiency advice to encourage property owners to take action to improve the efficiency of their homes, help reduce their homes carbon footprint and reduce running costs by cutting fuel wastage. Advice includes guidance on appropriate insulation levels, draft proofing, efficient use of household appliances and the importance of a correctly functioning, fully controlled central heating and hot water system; and • $V D 3ULPDU\ %LGGHU LQ WKH 1RUWKHUQ ,UHODQG 6XVWDLQDEOH (QHUJ\ 3URJUDPPH ɕ1,6(3ɖ Phoenix provided Whole House solutions to 137 households via our Efficiency Plus Heating and Insulation NISEP schemes, completing 1,869 measures, saving an estimated c.700 tonnes of tCO ǽ e per annum. In addition, Phoenix provided 433 households with Insulation measures via our Efficiency Plus Insulation Only Schemes, completing 3,030 measures, saving an estimated 439 tonnes of tCO ǽ e per annum.

Current Year 2025 Megalitres

Baseline Year 2019 Megalitres

Water

:DWHU &RQVXPSWLRQ SRWDEOH

0.9

1.3

TOTAL

0.9

1.3

Low Carbon Projects & Environmental Actions Taken • Ongoing engagement with over 90% of Phoenix's supply chain to quantify and address Scope 3 indirect emissions from purchased goods and services. • )ROORZLQJ D VXFFHVVIXO WULDO 3KRHQL[ KDV LPSOHPHQWHG SURFHVVHV LQ FROODERUDWLRQ ZLWK .LHU &RQVWUXFWLRQ WR SHUPDQHQWO\ LQWHJUDWH +\GURWUHDWHG 9HJHWDEOH 2LO +92 DV D IXHO DOWHUQDWLYH IRU YHKLFOHV XVHG LQ 3KRHQL[ RSHUDWLRQV ZLWK SODQV WR IXUWKHU DGDSW RSHUDWLRQDO SURFHVVHV HQDEOLQJ LQFUHDVHG \HDU RQ \HDU XSWDNH • Introduction of electric vehicles into Phoenix's commercial fleet in 2025, with trials of various vehicle types under operational conditions informing future decarbonisation strategy, alongside installation of additional EV charge SRLQWV DQG FRQWLQXHG LQFHQWLYLVDWLRQ RI SOXJ LQ K\EULG DQG HOHFWULF YHKLFOHV LQ WKH FRPSDQ\ FDU VFKHPH • 'HOLYHU\ RI PXOWLSOH K\EULG KHDW SXPS WULDOV DFURVV SULYDWH UHQWHG DQG VRFLDO KRXVLQJ VHFWRUV ZLWK D ODUJH VFDOH WULDO of 115 hybrid systems and 55 comparison boilers approved in December 2025 for installation from April 2026, led by Phoenix on behalf of NI gas distribution network operators; • 6XSSRUWLQJ WKH GHYHORSPHQW RI 1, ([HFXWLYH ELRPHWKDQH SROLF\ WKURXJK WKH SURYLVLRQ RI KLJK TXDOLW\ UHVHDUFK LQWR the costs associated with injecting large volumes of biomethane into the NI Gas Network; • (QHUJ\ HIILFLHQF\ XSJUDGHV DFURVV RIILFHV DQG GHSRWV LQFOXGLQJ /(' OLJKWLQJ UHSODFHPHQWV HQHUJ\ HIILFLHQW GHVNWRS 3& XSJUDGHV DQG LQVWDOODWLRQ RI ZDWHU VDYLQJ GHYLFHV WR UHGXFH ZDWHU FRQVXPSWLRQ DQG • 3URPRWLRQ RI VXVWDLQDELOLW\ LQLWLDWLYHV WR UHGXFH VLQJOH XVH SODVWLFV LQFOXGLQJ SURYLVLRQ RI UHXVDEOH SURGXFWV WR VWDII

-56 % Energy intensity MWH/ connected customer (excluding Shrinkage) Reduction

-49 % Carbon intensity Scope 1 & 2 tCO2e/ connected customer (excluding Shrinkage) Reduction

-81 % Landfill intensity tonnes/ connected customer Reduction

76

Responsible Business Report 2026

Responsible Business Report 2026

77