25th August 2026
When the argument over Britain's water industry turns to privatisation, Scotland is often held up as the alternative. Scottish Water remains publicly owned, has no shareholders and does not pay dividends to investors. Any financial surplus is reinvested in the business.
That is a significant difference from the model used in England and Wales.
But it would be wrong to conclude that Scottish Water has no problems. In reality, the company is facing some of the same fundamental challenges confronting the English industry: ageing infrastructure, leakage, climate change, increasing demand, sewage and environmental pressures and the need for enormous investment.
The difference is who ultimately owns the infrastructure and where the financial surplus goes.
And the latest figures suggest that Scottish Water is currently in a considerably stronger position operationally than many of the troubled English companies.
Its 2025/26 annual report describes the year as its second-best operational year since Scottish Water was created. Customer satisfaction reached a record level, serious environmental pollution incidents fell to just two, drinking-water compliance was 99.92% and the company invested a record £1.13 billion in new works, repairs and upgrades.
That is hardly a picture of a failing organisation.
But there is a "however".
Scotland's pipes are getting old
One of Scottish Water's biggest problems is something that cannot be solved quickly, cheaply or politically painlessly: much of the network is old.
Some of Scotland's water and wastewater infrastructure dates back many decades, with some infrastructure dating back to the late nineteenth century. The Scottish Government identifies ageing infrastructure as one of the three principal challenges facing the industry over the next regulatory period.
That means Scottish Water is increasingly spending money not simply improving the network but keeping an ageing network functioning.
The 2024/25 annual report showed that the company's repair bill had risen by 8%, with £343 million spent on repairs to assets — £25 million more than the previous year.
This is an important point when comparing Scotland with England.
It would be easy to say that Scottish Water's public ownership means Scotland has avoided the problems created by private water companies.
That would be too simplistic.
Scotland has avoided the shareholder and dividend issue, but it hasn't avoided the underlying engineering problem.
The pipes still age.
Treatment works still require replacement.
Sewers still need upgrading.
Reservoirs and water infrastructure still have to cope with changing weather.
And somebody still has to pay for it.
Leakage remains a problem
Scottish Water has made substantial progress in reducing leakage, but it is still one of its major challenges.
The company's latest annual report says leakage has fallen by 58% over the past 15 years. In 2024/25 it reduced leakage to 454 million litres a day after an increase the previous year, finding and repairing more than 8,700 leaks.
But the company acknowledges that reducing leakage becomes increasingly difficult as the easier-to-find leaks are dealt with.
There is also an interesting complication: Scottish Water estimates that around 30% of leakage is on the customer side of the network, rather than in Scottish Water's own infrastructure. It has therefore been helping customers identify and repair leaks on their own supply pipes.
So the headline "water companies are losing millions of litres of water" needs some care.
Not every leaking pipe belongs to the water company.
Nevertheless, reducing leakage remains important because Scotland is entering a period in which water availability cannot simply be taken for granted.
Scotland's climate is changing the equation
Perhaps the biggest long-term challenge is climate change.
Scotland has historically been thought of as a country with abundant rainfall and plentiful water.
That assumption is becoming less secure.
The experience of 2025 was a warning.
Scotland had its driest January-to-April period since 1964, while parts of eastern Scotland experienced exceptionally dry conditions. Scottish Water reported that people across Scotland consumed more than 470 billion litres of water during 2025.
At the same time, the country can experience periods of extremely heavy rainfall and flooding.
That creates a peculiar problem.
Scotland can have too much water at one moment and not enough at another.
The infrastructure was not necessarily designed for those extremes.
The Scottish Government says climate change is expected to produce drier summers and more intense rainfall events, putting additional pressure on infrastructure designed under very different climatic conditions.
So Scottish Water is effectively being asked to prepare for a future in which the old assumption that "Scotland has plenty of water" may no longer be sufficient.
Demand is increasing too
Population movements and tourism also create particular problems.
The problem isn't simply Scotland's total population. It is where people are living and when they are using water.
Scottish Water's own report identifies rural areas where ageing assets need upgrading and where summer populations can increase significantly because of visitors, putting additional pressure on local supplies.
That is particularly relevant to areas such as the Highlands and islands.
A water system serving a relatively small permanent population can suddenly experience much greater demand during the tourist season.
The infrastructure cannot necessarily be expanded economically simply because demand peaks for several weeks or months.
This is another example of why national statistics can conceal very local problems.
Then there is sewage
Water is only half of Scottish Water's responsibility.
The company also has to collect and treat wastewater and deal with the environmental consequences.
The latest figures are encouraging: serious pollution incidents fell to their lowest recorded level, with just two in 2025/26.
But "two" is not the same as "zero", and the environmental expectations placed upon the company are increasing.
Scotland's rivers, lochs and coastal waters are under increasing scrutiny, and there is pressure to reduce sewage-related pollution and improve urban water quality.
Scottish Water itself has committed to an Improving Urban Waters Routemap, while major investment programmes are being developed to improve wastewater infrastructure.
This will require substantial spending.
And that brings us to the central problem: money
Scottish Water has no shareholders demanding dividends.
That is a major difference from England.
But the absence of shareholders doesn't mean that investment is free.
The Scottish Government's current charging framework says customer charges provide around 90% of Scottish Water's finance, with the remainder currently coming from Scottish Government lending of about £170 million a year.
So Scottish households ultimately fund most of the system through their water charges.
The difference is that the money isn't being divided between shareholders as dividends.
It is being used to operate, maintain and improve a publicly owned national asset.
That is one of the strongest arguments for the Scottish model.
But it also creates a difficult political question.
How much should Scottish households be asked to pay to bring an ageing water system up to the standard required for the next 50 or 100 years?
Scotland is facing a huge investment programme
Scottish Water's proposed business plan for 2027–33 is currently estimated at £13.4 billion.
That is an enormous sum.
The proposed programme includes renewing ageing infrastructure, improving water quality, reducing sewer flooding and protecting rivers and coastlines.
The Scottish Government has already acknowledged the tension.
Its consultation on the future water industry specifically says there are concerns about the affordability of Scottish Water's draft business plan for customers.
That is perhaps the most important similarity between Scotland and England.
Eventually, somebody has to pay for the infrastructure.
In England, customers are being asked to pay more while private companies try to attract investment and deal with their debts.
In Scotland, customers are also being asked to contribute more because the infrastructure requires investment.
The difference is that Scottish Water isn't simultaneously trying to provide conventional shareholder returns.
This is where the Scottish model looks quite different
There is a fundamental financial difference.
If Scottish Water produces a surplus, there isn't a group of shareholders waiting for a dividend.
Scottish Water explicitly says that it has no shareholders and that financial surplus is reinvested into services and infrastructure.
That doesn't guarantee perfect management.
It doesn't guarantee that every pound is spent efficiently.
And it doesn't eliminate executive salaries, procurement costs, mistakes or bureaucracy.
But it does remove one of the fundamental tensions at the heart of the English model.
There isn't a choice between:
investing the money in infrastructure or distributing part of it to shareholders.
The surplus stays within the organisation.
That doesn't mean Scotland should become complacent
In fact, Scottish Water's relatively good performance may make the next stage even more important.
The company has been able to demonstrate strong performance while investing heavily.
But the scale of the future investment requirement is increasing.
The Scottish Government estimates that adapting Scotland's water infrastructure to climate change alone could require between £2 billion and £5 billion over the next 25 years.
And that is on top of normal replacement and improvement programmes.
So the challenge isn't simply maintaining what Scotland has.
It is rebuilding parts of the system for a climate and population pattern that did not exist when much of the infrastructure was constructed.
There is an interesting lesson for England
This is where the Scottish comparison becomes useful.
It doesn't prove that public ownership automatically produces a perfect water system.
It does demonstrate something important:
A publicly owned water company can operate commercially, invest heavily, be independently regulated and provide services without shareholders.
Scottish Water describes itself as publicly owned, commercially run and independently regulated.
That is quite different from the idea that nationalisation necessarily means a government department running the water supply.
Scottish Water is not simply another arm of the Scottish Government.
It has its own management, its own board and its own commercial responsibilities.
That distinction is worth remembering when England debates what to do about Thames Water and other troubled companies.
Scotland has a problem — but it is a different problem
Perhaps the fairest conclusion is that Scottish Water demonstrates both the advantages and the limitations of public ownership.
The advantage is that there is no shareholder extracting dividends from the business, and the organisation can concentrate its financial surplus on its core purpose.
The performance figures are also relatively strong: 99.92% drinking-water compliance, record customer satisfaction, record investment and the lowest number of serious pollution incidents recorded.
But public ownership doesn't create an endless supply of money.
Scottish Water still has ageing pipes.
It still has leakage.
It still faces sewage and environmental pressures.
It still has to repair infrastructure.
It still needs billions of pounds of investment.
And increasingly it has to prepare for a climate in which drought and flooding can occur in the same country within the same year.
The coming years could therefore provide an interesting test of Scotland's model.
The question isn't whether Scottish Water is perfect.
It clearly isn't.
The more useful question is whether a publicly owned organisation that reinvests its surpluses can deliver the enormous investment Scotland now requires more efficiently and fairly than a privately owned system that must also provide returns to investors.
England's experience with Thames Water makes that comparison particularly relevant.
Scotland doesn't have a water industry without problems.
What it has is a different way of allocating the financial burden.
And perhaps the most significant difference is this:
When Scottish Water needs to spend money on the pipes, the money stays in the water system.
The challenge for Scotland now is making sure that enough money is available — and that it is spent wisely — to ensure that those pipes, treatment works and reservoirs remain fit for another generation.
Scottish Water's latest Annual Report and Accounts