Can the water industry be nationalised at zero cost?

There is a lot of debate about whether or not the water industry should be (re-)nationalised, and what that might cost. Rather vocal in the current debate is Feargal Sharkey, who proposes a mechanism through which it might be nationalised at zero cost.
So, with the help of ChatGPT, here is an analysis/critique of his proposal.

1. The strongest part of Sharkey’s argument: regulatory value is not the same as market value

The Government’s estimated cost of nationalisation uses Regulatory Capital Value (RCV) as a proxy for the value of the industry. Defra estimates the cost at around £100 billion because it includes both the value of equity and the assumption of existing debt liabilities.

Sharkey’s criticism is that RCV is a regulatory accounting construct, not a freely traded market valuation. This is a legitimate point.

A company’s economic value should ultimately reflect:

• the expected future cash flows;
• the risks faced by investors;
• the condition of its assets;
• its future investment requirements; and
• its liabilities.

If a company has poor performance, high debt and large future obligations, its equity value may indeed be substantially below its regulated asset value.

This distinction is important. For example, a house may have a theoretical market value of £500,000, but if it requires £400,000 of essential repairs and has a large mortgage, the owner’s equity may be much smaller.

Confidence: 0.9

2. Where the argument becomes more complicated: debt does not disappear

The more difficult part is the suggestion that companies could simply fail and be acquired cheaply.

A water company is not like an ordinary failed business because:

• it provides an essential public service;
• its assets cannot realistically be abandoned;
• continuity of supply must be maintained;
• creditors have legal rights.

If a company enters insolvency or a special administration regime, the Government cannot simply ignore creditors. The treatment of debt would depend on the legal process and the priority of different claims.

Defra’s position is that the nationalisation cost estimate includes debt because creditors could require compensation or repayment, and because government would ultimately need to deal with those liabilities.

However, Sharkey’s counterargument is that investors knowingly accepted risks associated with highly leveraged companies. If a business fails, shareholders normally bear losses first and creditors may also face losses depending on circumstances.

That principle is central to modern capitalism: investors receive returns because they accept risk.

Confidence: 0.85

3. The key question: are water companies actually insolvent?

This is where the debate becomes technical.

A company can have:

• a positive regulatory asset value;
• substantial physical assets;
• large debts;
• weak profitability; and
• poor equity value,

without being legally insolvent.

The water industry was deliberately designed around regulated monopoly companies financed partly through borrowing. Debt itself is not necessarily evidence of failure.

The issue is whether:

• debt levels are sustainable;
• investors have received excessive returns relative to risk;
• companies can finance required investment;
• customers are being asked to pay twice: once through bills and again through government support.

The current difficulties at Thames Water illustrate this tension: the company has a very large debt burden, but the solution involves restructuring options rather than simply treating the company as worthless.

Confidence: 0.85

4. Would the “let it fail and buy cheaply” approach work?

There are three possible outcomes.

Scenario A — Sharkey is broadly right

Government allows a company to fail.

• Equity investors lose their investment.
• Some creditors take losses.
• Government acquires the operating company at a low cost.
• The public takes responsibility only for future investment.

This is similar to “bail-in” approaches used in banking regulation.

Potential benefit:

• taxpayers do not reward poor financial decisions.

Risk:

• uncertainty could damage investor confidence in UK infrastructure.

Scenario B — The Government still ends up paying much of the cost

A government cannot allow water services to fail.

It may have to:

• guarantee borrowing;
• maintain operations;
• compensate certain creditors;
• fund urgent infrastructure repairs.

The apparent saving may therefore be smaller than expected.

Scenario C — A negotiated restructuring

A middle route could involve:

• debt restructuring;
• conversion of debt into equity;
• stronger public control;
• revised regulation;
• new investment obligations.

This may achieve many benefits of public ownership without requiring immediate purchase of the entire sector.

5. How this affects your article

For a balanced article, I would avoid presenting Sharkey’s argument as either “the solution” or “wrong”. A more defensible formulation would be:

“Some commentators argue that the cost of nationalisation has been overstated because it assumes acquisition at regulatory asset values rather than market values. They contend that financially weak companies could instead be restructured through insolvency or special administration processes, allowing public ownership at a lower cost. Critics respond that essential water services cannot be allowed to fail, and that government would ultimately remain responsible for maintaining services, managing debt and funding investment.”

That wording recognises the legitimate economic argument while avoiding an ideological position.

My overall assessment:

Issue	Assessment
Criticism of using RCV as the nationalisation cost	Strong argument
Claim that nationalisation could cost far less than £100bn	Plausible but uncertain
Claim that government could acquire companies for almost nothing	Overstated
Argument that shareholders/investors should bear losses from failure	Consistent with normal corporate principles
Argument that taxpayers ultimately avoid all costs	Unlikely

The deeper lesson is that the nationalisation debate is partly a debate about who should bear the cost of past decisions: shareholders, creditors, customers or taxpayers. That framing is more analytically useful than simply asking “public or private ownership?”