Business Plan 2025–30

This is a significant priority. We face severe shortages over the short and long term and must act now to continue securing good quality, reliable water supplies. 

Our key investment plans are to:
•    invest £3.4 billion in our water services, 90% more than in 2020-25 
•    reduce the amount of water we take from the environment by 10% (compared with 2022) to support nature and wildlife
•    spend £320 million modernising five large water supply works, which supply 62% of our customers 
•    invest £517 million to reduce leaks, including replacing water mains and installing smart meters. Our long-term target is to reduce leakage by 53% by 2050. This will also reduce interruptions to water supplies.
•    deliver more than 189 million litres per day of ‘new’ water by 2035 through water recycling plants and new pipelines to transfer water from other areas
•    design and plan the longer-term infrastructure we need including a new reservoir, water recycling plants and more transfers from other regions.

Our key investment plans are to:
•    invest £4.1 billion in our wastewater services, an increase of 29% from 2020–25 
•    invest £682 million to reduce our use of storm overflows at 179 priority sites by 40% compared with 2020, including those close to shellfish and bathing waters
•    reduce overall pollution incidents by 50% and end serious pollution incidents
by installing new mains and increasing the resilience of power supplies to our pumping stations, as well as continuing to install monitors across our network 
•    invest £600 million to upgrade 38 wastewater treatment sites to improve the water we recycle back to the environment and improve 1,000km of rivers. This will also support 60,000 new homes being built and includes a new treatment works at Whitfield near Dover
•    invest in nature-based solutions first when we can, such as reed beds, wetlands and sustainable drainage systems.

We want to support our customers with easy service and clear, honest communications. This means spending time with our customers to understand their needs and tailoring our services where we can. 

Our key investment plans are to:

•    invest £348 million to provide trusted and easy-to-use customer services. We’ll invest in a new customer and billing system – making our services more responsive, particularly when things go wrong
•    provide useful information from smart meters to support water-efficient choices 
•    play a bigger role in communities by increasing our outreach and education programmes, supporting more charities and providing more community spaces
•    work closely with developers and our non-household retailers to improve their services, making it easier for them to connect to our networks
•    improve the services our customers receive in their homes.

Latest Information on PR24 Business Plan - March 24 Explanatory Note
Calculation of PR24 Business Plan Costs
PR24 Business Plan Data Tables March 24 Update
SRN39 Addendum Wastewater Treatment
SRN40 Addendum Storm Overflows
Business Plan Commentary 1
Business Plan Commentary 2
Business Plan Commentary 3
Business Plan Commentary 4
Business Plan Commentary 5
SRN PR24 Financial Model March 24 Update

SRN Business Plan Document Map
SRN Full Business Plan 2025-30
SRN01 Executive Summary
SRN02 Long-term delivery strategy
SRN03 Customer acceptability
SRN04 Costs and outcomes approach
SRN05 Wholesale Water (costs and outcomes)
SRN06 Wholesale Wastewater (costs and outcomes)
SRN07 Customer - HH & NHH (costs and outcomes)
SRN08 Affordability
SRN09 Deliverability
SRN10 Risk and Return 
SRN11 Data and Assurance 
SRN12 Long-term delivery strategy (Technical Annex)