Thames Water's reservoir plans
The UK hasn’t built a major new reservoir in over 30 years. Yet, according to Ofwat, England faces a potential water shortfall of up to 5 billion litres a day by 2055.
In the latest episode of The Infrastructure Podcast, I sit down with
Nevil Muncaster, Strategic Water Resources Director at Thames Water. Nevil is leading the proposed £7.5 billion White Horse Reservoir in Oxfordshire, a 12 km² mega-project designed to hold 150 billion litres of water and secure drought resilience for 15 million people across London and the South East.
Have a listen here: or find all 173 episodes wherever you get your podcasts - search “The Infrastructure Podcast” on Spotify, Apple, Google or YouTube.
As debt laden Thames Water announces new regional hosepipe bans, the tension is clear: fixing leaks is critical, but without major new storage, long-term water security remains out of reach.
While supporters call it a non-negotiable insurance policy against climate change and population growth, the path to a 2040 opening is complex with major issues such as:
- Community and environmental pushback over its ecological footprint, carbon cost, and disruption to local livelihoods.
- Financial headwinds, with Thames Water balancing a major debt load alongside an autumn cash-flow bottleneck.
- Planning milestones, with the Development Consent Order (DCO) application targeted for this year.











