Abingdon (South East Strategic) Reservoir

A proposed large pumped-storage reservoir in Oxfordshire, intended to underpin water supply for London and the south east through the 2040s.

Status
In planning
Promoter
Thames Water and Affinity Water
Type
Reservoir
Evidence base
Water resources management plans, the Nationally Significant Infrastructure Project process and public consultation documents.
Morocco national desalination programme

A national programme to add large-scale desalination capacity, including a very large plant at Casablanca, in response to a severe multi-year drought and declining dam storage.

Status
Under construction
Promoter
Government of Morocco
Type
Desalination
Evidence base
Government programme documents and public procurement notices.
Fens Reservoir

A proposed reservoir in Cambridgeshire to support growth in the driest part of the UK, where existing chalk groundwater abstraction is already environmentally constrained.

Status
In planning
Promoter
Anglian Water and Cambridge Water
Type
Reservoir
Evidence base
Water resources management plans and the NSIP consenting process.
Singapore Tuas Water Reclamation Plant

A very large underground water reclamation plant forming part of the Deep Tunnel Sewerage System, designed to close Singapore’s used-water loop.

Status
Under construction
Promoter
PUB Singapore
Type
Water reclamation
Evidence base
PUB publications and public tender records.
Havant Thicket Reservoir

The first new reservoir in southern England for decades, filled with surplus spring water and supporting reduced abstraction from the environmentally sensitive Rivers Test and Itchen.

Status
Under construction
Promoter
Portsmouth Water
Type
Reservoir
Evidence base
Planning consent, water resources management plans and company publications.
South Lincolnshire Reservoir

A proposed reservoir intended to add regional resilience in eastern England.

Status
In planning
Promoter
Anglian Water and Affinity Water
Type
Reservoir
Evidence base
Water resources management plans and consultation documents.
Thames Water AMP8 network renewal

Large-scale mains replacement and leakage reduction programme under the 2025–2030 regulatory period.

Status
Contract awarded
Promoter
Thames Water
Type
Network renewal
Evidence base
Ofwat price review determination and published procurement notices.
Grand Union Canal transfer

A proposed transfer of treated effluent-derived water along the Grand Union Canal from the Midlands to the south east.

Status
In planning
Promoter
Affinity Water and Severn Trent Water
Type
Water transfer
Evidence base
Water resources management plans and regional water resource group publications.
Sines desalination plant

Proposed desalination capacity for the Algarve, driven by repeated drought and high seasonal tourist demand.

Status
In procurement
Promoter
Águas do Algarve
Type
Desalination
Evidence base
EU procurement notices and national water planning documents.
Sydney Desalination Plant expansion

Proposed doubling of capacity to improve drought resilience for Greater Sydney.

Status
Proposed
Promoter
Sydney Desalination Plant Pty Ltd
Type
Desalination
Evidence base
State planning documents and regulatory submissions.