Price Review 29 (PR29)

WWISER is a document which sets the expectations on the Water Companies including the legal requirements, and wider environmental outcomes.

NRW has now published the WWISER for PR29, with the link available below in the related documents section.

The National Environment Programme (NEP) explains what new or changed environmental improvements water companies need to make in Wales, focusing on upgrades and enhancements rather than everyday maintenance. To create the NEP, NRW first prepares documents called Driver Papers, which set out the reasons why certain actions are needed and the laws or standards they relate to. NRW then works with water companies to identify the places that need improvement and the type of work required.

A map of PR24 NEP schemes can be found here: 

PR24 NEP Actions Interactive Map

The Price Review sets how much money water companies can spend. That investment is delivered in the following five‑year Asset Management Programme (AMP) period. 

Ofwat’s decision on each water company’s plan, which includes the proposed customer bills, sets the budget for NEP improvements. For example, PR24 funding is driving AMP8 (2020–2025).

NRW monitors how water companies use this funding and reports annually on their performance against Ofwat’s targets. 

Water companies are rewarded or penalised through Outcome Delivery Incentives (ODIs) based on how well they deliver. 

Across AMP2 to AMP7 (1995–2005), water companies have delivered ~5,000 environmental improvement actions.

The Strategic Priorities and Objectives Statement also known as SPS is prepared by Welsh Government. This sets out the Welsh Government's expectation for Ofwat in its roles as the economic regulator of the water industry in Wales. The 2025 SPS supports the transition toward a future water economic regulator in Wales. The previous 2022 SPS outlined the priority areas for Ofwat in Wales:

• environmental standards
• resilience
• affordability
• asset health
• decarbonisation