Water Crisis Could Derail UK Net Zero and Industrial Growth

Water scarcity is emerging as a hidden threat to the UK’s net zero pathway, with new research warning that planned industrial decarbonisation could outstrip available water supplies in several regions. Without urgent changes in how water is managed and allocated, some of the very projects designed to cut emissions may be delayed, scaled back, or made more expensive.

How Water Scarcity Links to Net Zero

The UK is legally committed to reach net zero greenhouse gas emissions by 2050, with an interim goal to cut emissions 68% below 1990 levels by 2030. Delivering this requires rapid deployment of low-carbon technologies such as carbon capture and storage (CCS), hydrogen production, and more low-carbon power generation – all of which depend heavily on reliable water supplies.

A study commissioned by business water retailer Wave, led by Professor Simon Mathias of Durham University, assessed whether England’s water system can realistically supply the volumes needed for planned decarbonisation. The analysis focused on five major industrial clusters – Humberside, North West England, Tees Valley, the Solent and the Black Country – where much of the UK’s heavy industrial and low-carbon investment is concentrated.

How Much Extra Water Will Net Zero Industries Need?

The research found that decarbonisation technologies such as blue and green hydrogen and large-scale $\text{CO}_2$ capture could require up to 860 million litres of additional water per day across England by 2050. By around 2040, this extra demand is expected to be roughly evenly split between $\text{CO}_2$ capture, blue hydrogen and green hydrogen projects.

In parallel, the Environment Agency has warned that, without action, England as a whole could face a water deficit of around 5–6 billion litres per day by the 2050s because of climate change, population growth and environmental protections. Putting these numbers together shows that industrial decarbonisation could claim a significant share of already-stressed water resources in some catchments, leaving less headroom for households, agriculture and ecosystems.

Regional Hotspots Where Industrial Growth Could Trigger Shortages

The modelling identified several regions where industrial growth tied to net zero could trigger or worsen water shortages if current plans go ahead unchanged. Key risks include:

• The Humberside industrial cluster is projected to push the Anglian Water region into deficit as early as 2030, with a potential shortfall of about 130 million litres per day by 2050 if no extra resources are developed.
• In the North West industrial cluster, additional demand could create a deficit of around 70 million litres per day by 2030 for United Utilities’ area, although the company argues its long-term strategy will turn this into a surplus by the mid-2040s.

By contrast, Teesside and the Black Country clusters are not expected to drive their respective water company regions (Northumbrian Water and Severn Trent) into deficit, because existing plans already include substantial new supplies and leakage reductions by 2050. This uneven picture underlines that water scarcity is a local and regional planning challenge, not just a national one.

Why Water Planning and Net Zero Planning are Misaligned

One of the strongest messages from the research and sector responses is that water resource planning and net zero industrial planning are not properly joined up. Water UK and individual companies have stated that many large-scale industrial and hydrogen projects are not fully built into the Environment Agency’s demand forecasts, which underpin decisions on new reservoirs, transfers and other strategic investments.

Anglian Water has warned that business and industrial demand is often under-represented in planning frameworks, limiting its ability to secure funding for long-lead-time projects such as reservoirs and inter-regional water transfers. Wave, the retailer that commissioned the study, argues that leaving large projects to “sort themselves out” for water access is risky for energy security because these schemes underpin future low-carbon power and fuels.

What This Means for Businesses and Heavy Industry

For industrial operators in sectors like chemicals, steel, refining, and large-scale hydrogen or CCS, water scarcity now represents a material project risk alongside grid access and permitting. If water availability is uncertain, companies may need to invest in on-site solutions such as water recycling, desalination or alternative cooling, which can raise capital and operating costs and weaken the economics of decarbonisation projects.

Competition between different types of users – households, agriculture, environment and industry – could also intensify in already stressed catchments, particularly in Eastern England where public water supply alone is projected to face a 730 million-litre-per-day deficit by 2050 without further action. This raises the prospect that some decarbonisation investments will be re-located, delayed or scaled down if secure, affordable water cannot be guaranteed.

Why Smarter Water Management is Critical for Net Zero

The report and wider commentary point to several system-wide responses that could help reconcile water security with industrial growth and net zero.

• Better integration of industrial demand scenarios into statutory regional and national water resource plans, so reservoirs, transfers and reuse schemes are sized for decarbonisation as well as population growth.
• Accelerated leakage reduction and water efficiency, with plans in Eastern England alone aiming to cut leakage by nearly 40% by 2050 and reduce household use from about 135 to 110 litres per person per day.
• Greater use of non-potable water sources, recycling and circular-water approaches around industrial clusters, reducing pressure on public water supply and sensitive catchments.

In parallel, the UK water sector itself has committed to reach operational net zero by 2030, which means water companies are trying to cut emissions at the same time as they are asked to expand and harden supplies. Aligning regulatory incentives, planning assumptions and funding mechanisms will be essential to deliver low-carbon, water-secure infrastructure on time.

Why Water Scarcity Matters to Wider Stakeholders

For policymakers, the new research is a reminder that net zero is not just about carbon budgets and gigawatts of clean power but also about physical resource limits such as water. Ignoring these constraints risks building decarbonisation strategies on unrealistic assumptions, leading to late-stage project cancellations, higher costs, or failure to hit legally binding targets.

For communities and local authorities in industrial regions, the findings highlight the importance of inclusive water and climate planning that protects household resilience, ecological flows and economic opportunity together. Civil society organisations focused on climate, nature and social justice are likely to scrutinise how new water infrastructure is delivered, who pays, and how benefits and risks are shared.

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