Our projects and sites
We invest around £1billion each year on improving our water and wastewater network - replacing ancient and worn out infrastructure, and adapting to the needs of a growing population. This is more than any other UK water company.
We have a number of major projects already in the pipeline, and are preparing to embark on some of the largest engineering projects in Europe. This includes the revolutionary London Tideway Tunnels and extensions to the London Ring Main.
Read more about our projects
- Beckton Desalination Plant
- The desalination plant will take water from the tidal stretch of the Thames, providing enough water for one million people each day. This will be used in times of drought or extended periods of low rainfall.
- Beckton Sewage Treatment Works
- Beckton is the biggest sewage treatment works in the UK and one of the biggest in Europe. An upgrade is planned as part of a £400m investment so that the plant can treat more effluent and to a higher quality.
- Crossness Sewage Treatment Works
- Crossness is one of London's major sewage treatment works. Improvement work is planned here to enable us to increase the amount of sewage that can be fully treated and reduce the potential for sewage to overflow into the River Thames.
- The GATOX main and Beacon Hill Reservoir extension
- Two large projects are underway to boost and safeguard supplies for customers in the Thames Valley.
- Hogsmill Sewage Treatment Works
- Hogsmill serves an equivalent population of 330,000 people, taking wastewater from several areas across South West London.
- London Tideway Tunnels
- Our biggest engineering projects to date - the proposed London Tideway Tunnels would provide the capital with a sewerage system fit for the 21st Century and beyond.
- Mogden Sewage Treatment Works
- Mogden serves 1.8 million people. Over half of the energy used at the plant is 'green energy' that has been generated on site as part of the sewage treatment process.
- Network improvement programme
- We are undertaking a large engineering project to ensure that our network lasts longer, and that our water is supplied efficiently.
- Proposed reservoir
- Predicted population growth, climate change and increased water consumption all mean that a major new water resource will be required for our region, by about 2020.
- Ring Main extensions
- The extensions to London's Ring Main will not only increase the size of the area it serves but will help us meet the capital's growing demand for water.
- Riverside Sewage Treatment Works
- We are proposing to treat the solid waste left behind after the sewage treatment process and turn it into enough renewable energy to power the entire Riverside site.
- Sewer flooding alleviation
- We recognise that sewer flooding is a major social issue and are committed to continuing to invest to reduce the risk of sewer flooding to our customers. We are investing £320m on sewer flooding alleviation schemes to reduce the risk of flooding at 10,000 properties.
- Victorian mains replacement
- So far we have replaced almost 900 miles of old and leaky water mains in London. This is essential to reduce leakage and ensure there is enough water to meet the needs of the capital's growing population.
