PV on the roof is easy.
Running tenant electricity profitably is the art.
Most tenant electricity projects fail not because of technology, but because of wrong model selection, inadequate calculation or missing regulatory coverage. We evaluate models, calculate returns and manage implementation.
Did you know?
80% of tenant power projects don't fail because of technology, but because of flawed profitability calculations. Those who treat tenant power as a pure energy topic miss the biggest lever: operating cost reduction. - Dr. Marlies Machens
This service is designed for:
- Landlords with suitable roof areas
- Housing associations and cooperatives
- Commercial landlords with multi-tenant properties
- Asset managers with ESG requirements
Sound familiar?
„PV system installed but no tenant electricity model - feed-in tariff instead of equity return."
„Economic viability of tenant electricity unclear - no decision basis for full supply, surplus or contracting."
„Regulatory requirements (EEG, metering concept) overwhelming - implementation delayed or failing."
Does tenant electricity pay off for your property?
In the cashflow calculator, see in minutes whether PV and tenant electricity make sense for your portfolio, and which model delivers the best return.
Step by step to results.
- 01
Potential Analysis
Roof areas, consumption profiles, regulatory framework. Test economic feasibility.
- 02
Model Selection
Full supply, surplus, contracting - model comparison with return calculation.
- 03
Implementation
Planning, metering, billing via partner network. Turnkey.
What you will receive.
- Roof area and consumption profile analysis1-2 weeks
- Feasibility analysis with model comparison (full supply, surplus, contracting)2-3 weeks
- EEG-compliant metering and billing concept3-4 weeks
- Subsidy check (, EEW) for PV components3-4 weeks
- Implementation roadmap with partner selection and timeline4-6 weeks
- ESG impact analysis for portfolio reporting4-6 weeks
Calculate profitability immediately
At a glance
Equity return possible (reference projects)
Energy costs for tenants
PV amortisation
What happens with wrong model choice or delay?
- Wrong model selection: full supply instead of surplus model can halve returns, or vice versa.
- EEG obligations underestimated: missing metering and billing concepts lead to regulatory risks.
- Missed ESG opportunities: PV potential not used as asset in ESG rating.
- Returns left on the roof: feed-in tariff instead of tenant electricity typically wastes 30-50% of possible returns.
- Contracting agreement without review: long-term commitment to suboptimal conditions.
What good advisory concretely changes here.
- Model optimisation: return calculation for each model - full supply, surplus, contracting - before investing.
- Regulatory certainty: EEG obligations, metering concept and billing logic cleanly covered.
- Portfolio scaling: think tenant electricity not as single project, but as portfolio strategy.
- Implementation capability: turnkey solution via partner network instead of in-house management.
Cross references
Further reading
Tenant Power in the Real Estate Lifecycle
Tenant power increases equity returns and reduces energy costs - operational value creation in property management.
+45 %
Equity return increase
Through tenant power model
§42a EnWG
Legal framework
Tenant power model since 2017
−30 %
Energy cost reduction
Through decentralised generation
Economic Comparison
| Grid Power | Tenant Power | |
|---|---|---|
| Electricity price | ~35 ct/kWh | ~28 ct/kWh |
| Equity return | Standard | +45 % |
| CO₂ footprint | Grid mix | Local PV |
| Smart meter | Not required | Prerequisite |
Frequently Asked Questions
Confidentiality
All our engagements are strictly confidential. We do not disclose client names, show logo galleries, or use details from active projects in marketing materials. All case studies are anonymised.
Strategic Sparring
Let us briefly assess your case.
Free, confidential, no obligation.
Get tenant electricity assessed
The question isn't whether PV pays off, but which model delivers the highest equity return and is regulatorily clean.
