Roof Leasing
Your commercial roof works. You earn.
Greenion leases your industrial or commercial roof, builds a PV system — and pays you a secured annual rent. No broker. No intermediary. We use the space ourselves.
Submit inquiry nowDefinition
What is roof leasing?
With roof leasing, a building owner makes their roof area available to a solar company, which builds and operates a photovoltaic system there at its own expense. In return, the owner receives a contractually secured rent — without any investment or operational risk.
Greenion leases commercial and industrial roofs from 500 m² of usable area for 20 to 30 years. Planning, permitting, construction, insurance, operations and maintenance are handled entirely by Greenion — as the operator of the system, not as a broker. Your lease contract is directly with Greenion.
No broker
We build the system for ourselves — as operator, not intermediary. Your contract is directly with Greenion.
Everything from one source
Planning, permits, construction, insurance, operations and maintenance — we take full responsibility.
Investors involved
Your roof becomes part of a real Greenion project, in which investors can participate via the VB Token marketplace.
Lease calculator
What is your potential?
Enter your usable roof area. We'll show you whether and how well your roof is suited for a Greenion project — no pricing, no obligation.
Reference values
What makes a good roof?
Flat roof, 350–400 kWp
- approx. 2,500–3,000 m² usable area
- Flat or slightly sloped
- Unshaded
- Sufficient load capacity
1,000 m² and above
- Larger areas enable economically stronger projects
- Roof free of obstructions
- Directly accessible
From 500 m² / 100 kWp
- Min. 500 m² usable roof space
- All orientations suitable
- Pitch up to approx. 45°
- Commercial or industrial building
Leasing vs. Own Investment
| Criterion | ✓ Lease to Greenion | Own investment |
|---|---|---|
| Capital required | ✓ None | €200–500/kWp |
| Planning & permits | ✓ Greenion handles everything | Self-organised |
| Technical risk | ✓ Carried by Greenion | Carried by owner |
| Income | ✓ Secure lease from day 1 | Dependent on yield |
| Roof condition | ✓ Good condition required — we can refer suitable contractors if needed | Fully at own cost |
| Contract duration | ✓ 20–30 years, secured | No guarantee |
Operations with Greenion Flow
After commissioning, we operate the system on your roof with Greenion Flow — our own software for monitoring, maintenance and billing. You can see at any time that your roof is in professional hands.
How it works
Register your roof
Submit your roof space — we review the basic suitability internally.
Review & Offer
We assess suitability on-site and provide a concrete written offer.
Contract & Construction
After signing, we handle everything: planning, permits, and construction.
Submit inquiry
Your inquiry in 4 steps
Answer a few questions and we'll get back to you shortly.
What type of roof do you have?
Usable roof area (m²)
FAQ
Roof leasing — frequently asked questions
How much rent will I receive for my roof?
The rent depends on the usable area, roof condition and grid connection situation. After a free initial assessment, Greenion prepares an individual offer with a secured annual rent over the entire contract term of 20 to 30 years.
Which roofs are suitable for leasing?
Commercial and industrial roofs from 500 m² of usable area with a pitch of up to approx. 45 degrees — all orientations are suitable. Unshaded flat roofs from 2,500 m² with sufficient load capacity are optimal.
Who pays for construction, insurance and maintenance?
Greenion covers all costs: planning, permitting, construction, insurance, operations and maintenance of the system. Operations and maintenance are managed through our own Greenion Flow software. The roof owner invests nothing and carries no technical risk.
What if my roof needs renovation?
The roof must be in good condition for leasing. Its condition is assessed before signing — if renovation is required, Greenion helps refer suitable contractors.
How long does the lease run and what happens afterwards?
The contract term is 20 to 30 years. What happens at the end of the term — dismantling, continued operation or takeover of the system — is transparently regulated in the lease contract.
Is Greenion a broker or intermediary?
No. Greenion builds and operates the system itself. There is no middleman and no brokerage commission — the lease contract is directly between you and Greenion.
Is a one-time payment possible instead of ongoing rent?
Yes, a one-time payment is possible in principle. However, we recommend the ongoing annual rent: it provides predictable, secured income over the entire contract term of 20 to 30 years. We will clarify which model suits you in the initial consultation.
Leasing or renting out my roof — what is the difference?
Colloquially, both terms are used interchangeably. Legally, it is a lease (Pacht) because the operator not only uses the roof area but generates income from it. With Greenion, you sign the lease contract directly with the system operator.
Lease my roof or invest in photovoltaics myself?
Investing yourself requires €200–500 of equity per kWp, your own planning, and the full technical and yield risk. Leasing to Greenion gives you a secured rent from day one — with no capital outlay and no risk. Which path pays off depends on capital, self-consumption and risk appetite.