
For owners & asset managers
Does it pay off?
Suitability, returns, process and risks. Real numbers instead of promises.
01 · Suitability
Is your property a fit?
Four clicks, instant assessment.
Building type
Roof area
On-site consumption
Current heating
02 · Business case
What does it do for your property?
Worked example
Care home with 120 beds
Built 1998 · 6,500 m² GFA · previously gas heating and grid power
| Kennzahl | Bestand | Saniert |
|---|---|---|
| Energiekosten / Jahr | 202.000 € | 104.000 € |
| CO₂ / Jahr | 381 t | 35 t |
| Pacht / Jahr | 720.000 € | 794.000 € |
| Anfangsrendite | 5,75 % | 5,50 % |
| Objektwert | 12,52 Mio. € | 14,44 Mio. € |
+€1.9m
+15% property value through higher rent and a lower initial yield
Illustrative example, not a real property. Simplified income valuation (rent ÷ initial yield); retrofitted yield = current yield – 0.25 pp. Retrofitted with a 400 kW heat pump, 420 kWp PV, 400 kWh battery and energy management. Net investment €1.25m after assumed subsidies of €0.25m, payback approx. 13 years. Net prices 10/2026: gas 10 ct, electricity 22 ct (green 23 ct), feed-in 5 ct per kWh. CO₂ factors: gas 0.201, electricity 0.380, green electricity 0.05 t/MWh.
03 · Delivery
Two decisions.
Six to nine months.
We coordinate the rest. Your building stays fully operational.
Operation: 20 years – with owner financing, terminable after 2 years

Delivered prefabricated, craned into place.
Result of step 01
Your decarbonisation roadmap
A document you can work with.
- ✓(Re)financing discussions
- ✓Buyer due diligence
- ✓CO₂ pathway, investment and returns
04 · Risks & security
Who carries what?
You decide whether re-green invests or you do.
| Zuständigkeit | Contracting | Eigentümerfinanzierung |
|---|---|---|
| Investition | re-green | Eigentümer |
| Eigentum an der Anlage | re-green | Eigentümer |
| Planung, Bau & Gewährleistung | re-green | re-green |
| Betrieb & Wartung | re-green, 20 Jahre | re-green, auf Wunsch 20 Jahre (nach 2 Jahren kündbar) |
| Versicherung der Anlage | re-green | Eigentümer |
| Dach & Statik | Prüfung vor Bau, Instandhaltung Eigentümer | Prüfung vor Bau, Instandhaltung Eigentümer |
| Dienstbarkeit im Grundbuch | ja | nein |
| Lieferung & Abrechnung an Mieter | re-green | re-green |
With owner financing, the system is part of the building and transfers with the property. With contracting, the contract transfers to the buyer and the system keeps running. Alternatively, the buyer can take over the system for a buyout amount and end the contract early.
It only applies to contracting. A limited personal easement registered in the land register secures re-green’s right to operate its own system on your property. This is standard for third-party energy systems and a prerequisite for financing.
- re-green invests in, builds and operates the PV and heat pump on your building.
- You receive a fixed annual rent, independent of yield.
- At the end, the systems transfer to you for €1.
- Solar power from your own roof, residual power from the grid, all from one source.
- Fixed standing charge plus unit price, adjusted annually for inflation.
- Heat pump covers the base load; your existing heating stays in place for peaks.
- 20-year term with contracting, otherwise 5 years.
05 · Portfolios
One portfolio.
Delivered in waves.
Analyse
Property list in, automated assessment for each asset out.
Prioritise
Ranked by return, CO₂ impact and feasibility.
Deliver
One framework agreement, one point of contact, one report.
For asset managers: reporting on capex, energy income, EPC rating, CO₂ savings and CRREM pathway.
Request a portfolio analysis
Next step
Which model suits your property?
30 minutes, no obligation. We show you the best financing route for your building.
- 1Enter address and consumption
- 2Receive your roadmap instantly
- 3Introductory call on model and numbers
Free · automated · instant
