re-green Wärmepumpen-Einheit in Holzverkleidung vor einem Bestandsgebäude

For owners & asset managers

Does it pay off?

Suitability, returns, process and risks. Real numbers instead of promises.

re-green energy unit · prefabricated, craned into place

01 · Suitability

Is your property a fit?

Four clicks, instant assessment.

Building type

Care home
Commercial
Logistics
Office
Hotel
Residential / mixed

Roof area

7,000 m² or more
smaller
needs renovation
listed building

On-site consumption

300,000 kWh/yr or more
less
low daytime use

Current heating

Gas / oil
District heating
Not sure
0/4
Your assessment

Select your details on the left.

Check my property

02 · Business case

What does it do for your property?

↓ Energy costs→↑ Rent→↑ Property value

Worked example

Care home with 120 beds

Built 1998 · 6,500 m² GFA · previously gas heating and grid power

KennzahlBestandSaniert
Energiekosten / Jahr202.000 €104.000 €
CO₂ / Jahr381 t35 t
Pacht / Jahr720.000 €794.000 €
Anfangsrendite5,75 %5,50 %
Objektwert12,52 Mio. €14,44 Mio. €
Heat pump 400 kWPV 420 kWpBattery 400 kWhEnergy management
Calculate for your property
Bewertungseffekt

+€1.9m

+15% property value through higher rent and a lower initial yield

12,5
+1,3
+0,6
14,4
Current+ Rent+ YieldRetrofitted
€98,000energy costs saved per year
+€74,000rent per year
–91%CO₂ (381 → 35 t)
Assumptions & calculation ›

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.

Week 048121620→
01
Decarbonisation roadmapYou enter address & consumption
instant
02
Property analysisSite visit, roof survey, design
4 weeks
03
Offer & contractYou decide & sign
4 weeks
04
ConstructionCertified contractors
12 weeks
05
OperationMonitoring, maintenance, billing
20 years
Your stepsre-greenOngoing operation

Operation: 20 years – with owner financing, terminable after 2 years

Wärmepumpen-Einheit wird per Kran gesetzt
Montage
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
Request your roadmap

04 · Risks & security

Who carries what?

You decide whether re-green invests or you do.

Contracting
Owner financing
ZuständigkeitContractingEigentümerfinanzierung
Investitionre-greenEigentümer
Eigentum an der Anlagere-greenEigentümer
Planung, Bau & Gewährleistungre-greenre-green
Betrieb & Wartungre-green, 20 Jahrere-green, auf Wunsch 20 Jahre (nach 2 Jahren kündbar)
Versicherung der Anlagere-greenEigentümer
Dach & StatikPrüfung vor Bau, Instandhaltung EigentümerPrüfung vor Bau, Instandhaltung Eigentümer
Dienstbarkeit im Grundbuchjanein
Lieferung & Abrechnung an Mieterre-greenre-green
What happens if the property is sold?+

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.

What does the easement mean?+

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.

Lease agreement+
  • 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.
Power & heat supply agreement+
  • 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.

1
Analyse

Property list in, automated assessment for each asset out.

2
Prioritise

Ranked by return, CO₂ impact and feasibility.

3
Deliver

One framework agreement, one point of contact, one report.

re-vive · Portfolio rankingSample data
#AssetProject returnCO₂Wave
1Logistik, Duisburg
–88 %Welle 1
2Pflege, Mainz
–91 %Welle 1
3Büro, Frankfurt
–76 %Welle 2
4Gewerbe, Hamburg
–82 %Welle 2
5Hotel, Köln
–64 %Prüfen

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.

  1. 1Enter address and consumption
  2. 2Receive your roadmap instantly
  3. 3Introductory call on model and numbers
Get your roadmap

Free · automated · instant