ESPC Cash Flow and Guarantee Risk
A hospital considers a $2.0 million ESPC for lighting and HVAC. Projected utility savings are $260,000/year, and maintenance savings are $20,000/year. The ESCO requires a 15-year term, a 10% savings guarantee, and annual M&V costing $8,000. The hospital can finance at 6.0% for 15 years with level annual payments; its discount rate is 8%. The CFO will approve only if the project is cash-flow positive in year one and has a simple payback under 10 years. The ESCO's savings estimate has ±20% uncertainty.
1. Calculate net annual savings, the level annual debt payment, year-one cash flow, simple payback, and NPV at 8%. Use the net savings before debt service for payback and NPV.
Read the worked answer
Gross savings = $260,000 + $20,000 = $280,000/year. Net after M&V = $280,000 - $8,000 = $272,000/year.
Debt payment: P = $2,000,000 × [0.06 / (1 - 1.06^-15)]. The annuity factor is 0.102963, so payment = $205,926/year.
Year-one cash flow after debt service = $272,000 - $205,926 = $66,074.
Simple payback = $2,000,000 / $272,000 = 7.35 years.
NPV at 8%: annuity factor = (1 - 1.08^-15)/0.08 = 8.5595; PV of savings = $272,000 × 8.5595 = $2,328,184; NPV = $2,328,184 - $2,000,000 = $328,184.
This assumes savings start immediately, M&V is constant, and no escalation or residual value. The project passes the CFO's cash-flow and payback tests on these assumptions.
2. Stress-test the decision at -20% savings. Should the hospital sign? What contract features matter?
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At -20% savings, gross savings = $280,000 × 0.80 = $224,000; net after M&V = $216,000. Cash flow after debt = $216,000 - $205,926 = $10,074, still barely positive. Simple payback = $2,000,000 / $216,000 = 9.26 years, under 10. NPV at 8% = $216,000 × 8.5595 - $2,000,000 = $1,848,852 - $2,000,000 = -$151,148, so the project is value-destroying at the hospital's discount rate under this downside.
The 10% savings guarantee covers only $28,000 of the $56,000 shortfall versus the $280,000 gross estimate, so it does not fully protect the downside. Before signing, the hospital should: exclude unguaranteed maintenance savings from the coverage test; require a guarantee tied to measured savings with clear baseline adjustments; confirm M&V cost and scope; and negotiate a shorter term, lower financing rate, or ESCO-backed shortfall coverage. Signing is defensible only if the hospital accepts the downside or the ESCO improves the guarantee.
3. What M&V and procurement safeguards would you require?
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Use IPMVP Option B or C with a defined measurement boundary, calibrated meters, and a baseline regression that includes weather and occupancy. Require a commissioning test before acceptance, a guaranteed maximum M&V cost, and annual reconciliation with utility bills. The guarantee should state who pays for shortfalls, how savings are calculated, and what happens if the baseline conditions change.
On procurement, separate the construction price from the financing cost, require open-book pricing for major equipment, and compare the ESPC with a direct loan plus separate commissioning. Confirm the ESCO's financial capacity to back the guarantee, and require a performance bond or parent guarantee. Finally, make sure the hospital's accounting treats the obligation correctly and that the term does not exceed the useful life of the measures.