Clearwater Utilities: Investment Appraisal with Regulatory Constraints
Clearwater Utilities is a regulated water company evaluating a £60m smart-metering programme. Expected annual operating savings are £9m for 15 years, but the regulator will only allow the capex into the regulated asset base (RAB) after a three-year review, and will cap the allowed return at 4.5% real. Clearwater's weighted average cost of capital is 6.8%. The programme also requires £8m of working capital tied up from year one, released at the end. The finance team has produced a base-case NPV of +£2.1m using a 6.8% discount rate and ignoring the RAB lag. A board member argues that because the project is socially desirable, it should proceed regardless of NPV.
1. Recalculate the project's viability, incorporating the RAB lag and working capital, and advise the board.
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Base case flaw. The +£2.1m NPV ignores two cash effects: the £8m working capital lock-up and the three-year delay before capex earns an allowed return.
Working capital. £8m tied up from year one and released in year 15. Discounted at 6.8%, the present value of the outflow is £8m; the release is £8m/(1.068)^15 ≈ £8m × 0.372 = £2.98m. Net cost ≈ £5.02m.
RAB lag. If the £60m only enters the RAB after three years, the company funds £60m for three years without a return. The financing cost is roughly £60m × 6.8% × 3 years ≈ £12.2m undiscounted, or about £10.7m in present-value terms. Even using the 4.5% allowed return, the shortfall between 6.8% WACC and 4.5% allowed return on £60m is £1.38m a year - over 15 years, a present-value gap of roughly £12.6m.
Revised NPV. £2.1m − £5.0m − £10.7m ≈ −£13.6m. On a commercial basis the project destroys value.
Advice. The board should not approve on the current terms. Options: negotiate earlier RAB recognition or a higher allowed return; phase the roll-out to reduce the lag; or seek a government grant to bridge the funding gap. Proceeding regardless would transfer value from shareholders to customers.
2. Evaluate the board member's argument that social desirability justifies proceeding regardless of NPV.
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The argument. Smart metering reduces leakage and customer bills, so it has genuine public benefit. A regulated utility has statutory duties and a social licence to operate; pure NPV may understate value.
Why it is incomplete.
- Who pays. A negative-NPV project funded by shareholders transfers wealth from owners to customers without compensation. If the regulator has set the allowed return at 4.5%, it has already decided the fair split; the company cannot unilaterally override it.
- Fiduciary and legal duties. Directors must act in the company's interests and comply with the licence. Deliberately investing below WACC may breach licence conditions on financial resilience and could trigger regulatory penalties.
- Cost of capital discipline. Repeated below-WACC investment raises the cost of capital, making future socially useful projects harder to fund - the opposite of the intended effect.
- Better routes. Social benefit can be pursued through negotiation (RAB recognition, grants, price controls), partnerships, or phased investment that preserves NPV. CSR is legitimate, but it should be funded from surplus, not from value destruction disguised as strategy.
Conclusion. Social desirability is a relevant factor but not a licence to ignore economics. The board should pursue the project only with a funding structure that closes the £13.6m gap - for example, regulatory agreement on earlier RAB inclusion or a public grant.