Vacation home district heating — Iceland
Prepared: September 2026 | Confidential — For Discussion Purposes
Executive Summary
Our geothermal project will generate significantly more thermal capacity than the primary development requires. We propose to monetise this surplus by supplying hot water to a neighbouring planned vacation home community of 50 homes across two clusters. The developer of that community has indicated willingness to co-invest in the distribution infrastructure, which materially de-risks the project and compresses the payback period to approximately 10–11 years on a shared CAPEX basis — well within the operational lifespan of the asset (30–40 years).
This is a low-marginal-cost, recurring revenue stream built on zero-cost fuel.
Project overview
| Parameter | Detail |
|---|---|
| Heat source | Geothermal (surplus capacity from primary project) |
| Customers — Phase 1 | 25 vacation homes, Cluster A |
| Customers — Phase 2 | 25 vacation homes, Cluster B |
| Distance to Cluster A | 800 m from source |
| Distance to Cluster B | 1,700 m from source |
| Billing model | Fixed annual subscription + flow capacity |
| Developer role | Co-investor in pipeline infrastructure (50% CAPEX) |
Capital expenditure
| Item | Total Cost | Developer (50%) | Our Share (50%) |
|---|---|---|---|
| Trunk line, Source → Cluster A (800 m) | €524,800 | €262,400 | €262,400 |
| Extension, Cluster A → Cluster B (900 m) | €590,400 | €295,200 | €295,200 |
| Internal distribution, Cluster A | €173,700 | €86,850 | €86,850 |
| Internal distribution, Cluster B | €173,700 | €86,850 | €86,850 |
| Pump station & substations | €65,000 | €32,500 | €32,500 |
| Metering cabinets (50 homes) | €75,000 | €37,500 | €37,500 |
| Total | €1,602,600 | €801,300 | €801,300 |
| Less: Connection fees collected (50 × €3,200) | –€160,000 | ||
| Net CAPEX outlay | €641,300 |
Build is phased: Phase 1 (Cluster A, ~€801k) triggers on Cluster A construction start; Phase 2 (Cluster B) triggers on Cluster B confirmation. No idle capital.
Revenue & Financial Projection
| Revenue Item | Annual |
|---|---|
| Subscriptions — 40 standard homes (×€1,450/yr) | €58,000 |
| Subscriptions — 10 hot tub homes (×€1,750/yr) | €17,500 |
| Gross Revenue | €75,500 |
| Operating costs (maintenance, pumping, admin) | –€15,000 |
| Net Annual Income | €60,500 |
| Financial Metric | Value |
|---|---|
| One-time connection fee income | €160,000 |
| Net annual income (steady state) | ~€60,500 |
| Net CAPEX after connection fees | €641,300 |
| Payback period | ~10.6 years |
| Revenue from year 11 onwards | Near-pure margin |
| Asset operational life | 30–40 years |
Why the developer co-invests
The developer’s motivation is straightforward. In Iceland, geothermal hot water access is a market baseline expectation — lots without it sell at a meaningful discount. Based on regional comparables, reliable hot water supply adds an estimated €15,000–€25,000 per lot in realised sale value. Across 50 lots, that represents a €750k–€1.25M uplift in gross development value — making a €800k infrastructure contribution not just reasonable, but commercially rational. We are effectively subsidising their product quality.
This alignment of interests is a structural strength of the deal.
Key strengths
- Zero fuel cost. The heat is a by-product of our existing geothermal investment. Marginal cost of production is effectively nil.
- Recurring, inflation-linked income. Subscription tariffs are typically indexed to energy price benchmarks. Utility revenues are sticky and predictable.
- Captive customer base. Once connected, switching costs are prohibitive. Customer churn is essentially zero.
- Developer co-investment halves our exposure and signals strong demand validation before a single pipe is laid.
- Phased build eliminates idle capital risk. Phase 2 is only committed when Cluster B development is confirmed.
- Enhances our own project’s social licence. Community benefit strengthens planning relationships and long-term operating position.
- Gateway asset. Once operational, additional projects in the area will find our infrastructure already in place, with extension economics improving per additional customer.
Risks & mitigants
| Risk | Likelihood | Mitigant |
|---|---|---|
| Developer delays Phase 2 or backs out | Medium | Phase-gate agreements; Phase 1 is independently viable |
| Connection take-up below 100% | Medium | Mandatory connection covenant in lot sale contracts |
| Hot water chemistry unsuitable for bathing | Low–Medium | Test borehole water pre-commitment; heat exchanger option |
| Regulatory licence requirement (Orkustofnun) | Low–Medium | Early engagement with regulator; licence process is established |
| Pipeline CAPEX overrun | Medium | Fixed-price contractor quotes locked before commitment; 10% contingency |
| Developer seeks equity/pricing control | Medium | Contribution structured as infrastructure grant, not equity; ownership stays with us |
| Phase 2 development delayed 3–5 years | Medium | Phase-gating means no stranded capital; Phase 1 payback unaffected |
Strategic upside (not in base case)
10 existing vacation homes in the wider area were judged too dispersed and few to connect at present. As our network grows and additional developments emerge, incremental connections become progressively cheaper per home.
- Future developments attracted by proven geothermal infrastructure can be connected on similar commercial terms — each new customer improves the network economics for all parties.
- Carbon credit potential. Displacing oil or electric boiler heating with geothermal may qualify under relevant Icelandic or European carbon mechanisms — upside not yet quantified.
Summary verdict
This is a long-duration, low-risk infrastructure asset generating clean recurring income from a zero-cost fuel source, with a co-investing partner whose financial interests are directly aligned with ours. The 10.6-year payback on net invested capital is conservative — and from year 11, the revenue stream runs largely unconstrained for a further 20–30 years.
The primary negotiation priority is the mandatory connection covenant in the developer’s lot sale contracts. That single clause converts a projected revenue stream into a contractual one — and that is the difference between a good investment and an excellent one.
This document is prepared for discussion purposes only and does not constitute a formal investment prospectus. All figures are estimates based on comparable Icelandic district heating projects and are subject to detailed engineering and commercial due diligence.