Full supply, surplus or contracting?
The structured comparison.
Three tenant electricity models, three completely different return, risk and effort profiles. Here's the systematic comparison - without bias.
Neutral. Data-based. Decision-ready.
Why model selection is decisive
Wrong model selection can halve returns, or double them.
PV providers usually recommend full supply, because they earn most from it.
Tax and regulatory differences are often not explained.
No standardised comparison - decisions based on gut feeling.
Does this sound like your situation?
Let's clarify in a free initial consultation whether and how we can help.
The three basic models
How we compare models
Identical Input Data
Same system size, same consumption profiles, same financing - only the model differs.
Return Comparison
IRR, NPV, cash-on-cash return and payback period for each model.
Risk/Effort Matrix
Regulatory effort, operational risk and management intensity per model.
Typical comparison results
Return profile full supply
Return profile surplus
Contracting (no equity)
Frequently asked questions about model comparison
Related Topics
Calculate your model
In the cashflow calculator, compare all three models with your real data.
