A leak detection van is parked beside a dug-up pavement in a town where nobody has any choice about who supplies their water. The householders walking past it cannot switch, cannot shop around, cannot negotiate, and if they stop paying, the company cannot cut them off.
That sounds like the best commercial position in Britain. It is the reason the business is hard.
A water company has customers who cannot leave and a price it is not allowed to set. Every five years a regulator decides what may be charged and what must be delivered in return, and the second half of that sentence is where the money is won and lost.
A price set once every five years
The regulated water and sewerage companies in England and Wales were created by the Water Act 1989, which turned the regional water authorities into appointed undertakers and floated them in December 1989. The Water Industry Act 1991 consolidated the framework. Before 1989 there was no such business to run: there were public bodies.
The appointment gives you a monopoly over a defined area, held under an instrument of appointment with conditions attached. What it takes away is pricing. Ofwat runs a price review on a five-yearly cycle, and the outcome sets the allowed revenue for the period along with the performance commitments that come with it.
Those commitments are the part that surprises people. They cover the things the public reads about: leakage, pollution incidents, supply interruptions, internal sewer flooding, customer service. Missing them turns into a financial penalty applied through the regulated revenue, and beating them can earn a reward. A five-year settlement is not a price. It is a price plus a published scorecard.
The practical effect is that running one is a capital allocation job. You cannot sell more, you cannot charge more and you cannot lose a customer. You decide where the capital programme goes, and you are judged on the outcomes it produced.
The industry in England and Wales is roughly sixteen appointed companies, turning over something in the order of thirteen billion pounds a year. Those are order-of-magnitude figures; the authoritative count comes from Ofwat's own register.
Leakage is the number, and everybody can see it
The number is leakage, reported in megalitres a day, measured against the commitment set at the price review.
It is an unusual thing for a business to run on. It is a physical quantity of water disappearing out of old pipes into the ground, it is published, and a general reader understands immediately what it means. A company can be financially sound and reputationally finished on one line of a table.
Reducing it is slow and expensive. Some of it is detection and repair, which is vans and crews and acoustic kit. Most of it is mains renewal, which means digging up a network that in many towns was laid by the Victorians, at a pace the allowed revenue will fund. A leakage commitment agreed at a price review is a promise about the condition of buried assets five years out.
The year works against you too. A dry summer puts demand up and puts leakage on the front page at the same time, because the ground moves, the old joints fail and reservoir levels are in the news anyway.
Three regulators, and none of them is the market
Ofwat sets the price and the commitments, turns missed commitments into penalties, and can make an enforcement order against a company breaching its conditions or its statutory duties.
The Drinking Water Inspectorate regulates the quality of what comes out of the tap, and it is separate from the economic regulator for a good reason: quality is not something you are allowed to trade against cost. The inspectorate can prosecute.
The Environment Agency regulates what goes back out. Abstraction from rivers and groundwater is licensed, discharges from treatment works are permitted, and a pollution incident is a criminal matter regardless of how the price review went.
There is a fourth regulatory relationship people forget, which is that the company is itself a regulator. Industrial customers discharging to the sewer need a trade effluent consent, and the water company grants it, sets the conditions and charges for it. You are the licensing authority for the factory down the road.
None of these bodies is a market, and that is the point. In an ordinary trade a bad decision shows up as customers leaving. Here it shows up as a regulator's finding, and the finding lasts longer than the customers would have.
The bill you cannot chase, and the VAT you do not charge
Two financial features make the accounts look unlike any other utility.
The first is bad debt. Parliament removed the power to disconnect a household for non-payment in 1999, and it has not come back. A domestic customer who does not pay keeps receiving water and sewerage services indefinitely. You can pursue the debt through the ordinary civil route, and companies do, but the sanction every other business relies on is not available. The result is a permanent bad debt line that no amount of credit control removes, and which is ultimately paid for by the customers who do pay.
The second is VAT, and it is genuinely unusual. Water supplied to a household and sewerage services are zero rated under VAT Act 1994, Schedule 8, Group 2. Water supplied to industry is standard rated. The same company, pumping the same water through the same mains, charges 20% to a factory and nothing to the house next door to it.
Zero rating is not exemption, which matters. The company is making taxable supplies at 0%, so it recovers input VAT on the capital programme in the normal way. For a business spending heavily on treatment works and mains renewal, that is a substantial cash difference.
How a water company fails
Not through losing customers, because it cannot. It fails through a year in which several things land together.
A dry summer. Leakage above the commitment, publicly. A pollution incident from a treatment works in the same twelve months. The penalties come straight off the allowed revenue, which is the only revenue there is. Then a boil-water notice, the one thing that reaches households directly, which undoes a decade of quiet competence in an afternoon.
The lasting damage is not the penalty. It is that the next price review starts from a company the regulator no longer trusts, and a regulator that does not trust you sets tighter commitments and allows less to meet them. That is how a bad year becomes a bad decade.
Where this shows up in the game
In Business Baron the water company is a monthly argument with yourself about where the capital goes. Mains renewal moves leakage. Treatment keeps the pollution figure down. You cannot do both, and the figure you are judged on is leakage in megalitres a day against the commitment set at the last price review.
The regulators turn up separately and for different reasons. Ofwat sets the settlement and applies the penalties, the Drinking Water Inspectorate looks at quality, and the Environment Agency looks at the river. The failure state is the compound bad year: dry summer, leakage over the line, an incident, penalties, and a price review that begins with your reputation rather than your business plan. The Water & Sewerage Company page sets out the setup costs, the margins and the regulatory regime.
It is one of the specialist trades, which sit on top of the full game, and the furthest of them from an ordinary business: no churn, no advertising, no competitor, and a price fixed five years at a time by somebody with a published scorecard.