Energy Budget & Billing Validation System

Thames Water is seeking to procure a modern, resilient, and scalable Energy budget & billing validation system to support the accurate processing, validation, and management of energy consumption and invoicing data across our operational estate. The solution will replace legacy processes with a secure, cloud‑based platform capable of integrating with our enterprise systems, improving data quality, strengthening financial assurance, and enabling more efficient operational decision‑making. The successful supplier will provide the software solution, associated implementation services, ongoing support, maintenance, and continuous improvement throughout the contract term. This procurement aims to establish a long‑term partnership with a supplier who can demonstrate technical maturity, strong service delivery capability, and proven experience operating within complex, regulated environment. Thames Water reserves the right to refine the award criteria. Please note that that deadline for asking for access to the PSQ & submitting of the PSQ is 24 July 2026 at 12:00 noon.