Lease Conversion Land for Photovoltaics

Why conversion sites are privileged for photovoltaics

Conversion sites are formerly used areas that have lost their original function – decommissioned military land, filled landfills, mining brownfields, abandoned railway sites and old commercial and industrial areas. For ground-mounted photovoltaics they are expressly privileged under the EEG: they are among the preferred land categories, eligible for support and often permitted faster than agricultural land. The reason is simple – there is no competition with food production and no debate about valuable arable soil.

For you as an owner that means a doubly good starting position: land that is otherwise hard to use becomes especially valuable as a solar site – and because the privilege and low competing use ease realisation, the lease often sits in the upper part of the usual range. Whether your land qualifies is decided mainly by grid proximity, shape and the contamination situation – exactly the first filter the land check assesses automatically.

How much lease does conversion land earn for solar?

For context: agricultural rent is around €350/ha (arable) or €200 to €300 (grassland). Ground-mounted solar earns a multiple of that – and conversion sites, thanks to their privilege and low competing use, often sit in the upper range. The benchmark figures below are graded by site quality; the concrete figure follows from the check.

How to lease your conversion land for solar

From the first check to ongoing lease there are five clearly separated steps. Until you sign, there are no costs and no obligation – contamination and dismantling questions are clarified together with the developer.

1. 1Land checkMark your land on the map and check suitability, grid proximity and restrictions in seconds – free and without obligation.
2. 2Non-binding offerIf the land fits, vetted developers provide concrete interested parties and a first lease offer.
3. 3Clarify contamination & contractLease amount, term, dismantling security and the contamination situation are assessed and negotiated. Have the contract reviewed by a lawyer.
4. 4Permitting & constructionThe developer handles the land-use plan, permitting and construction of the solar farm – the privilege often speeds up the process.
5. 5Ongoing leaseFrom commissioning, the agreed lease is paid reliably over the full term – weather-independent and index-linked.

Contamination honestly assessed – not a knock-out

Many owners shy away from the topic of contamination – wrongly. On former landfills, military or industrial sites, soil pollution, old foundations or suspected ordnance are to be expected. That is a checkpoint, but rarely a reason for exclusion. On the contrary: a solar installation barely seals the ground, intervenes little in deeper layers and often leaves contaminated land undisturbed rather than remediating it at great cost. For many conversion sites, photovoltaics is therefore the most compatible follow-up use of all.

The right order matters: the land check is the fast first filter for grid proximity and obvious restrictions. The deeper contamination assessment – expert reports, structural loads, ordnance – is handled by the developer later, and the costs are usually borne by them, not you. So you clarify basic suitability for free before any effort arises.

Faster permitting, less competing use

The biggest advantage of conversion sites lies in planning law. Because they are privileged under the EEG and pose no competition to agricultural use or nature protection on high-value grassland, solar projects meet far less resistance here. Municipalities and permitting authorities are usually open to converting an old brownfield into a solar power plant – a liability becomes value creation, without losing productive soil.

That shows in faster procedures and in developers' willingness to pay. A privileged, grid-near site without land-use conflicts lowers project risk – and part of that advantage flows back to you as a higher lease. That is why conversion sites frequently reach the upper range of the usual solar lease.

Less-favoured areas and the state opening clause

Another element of the support framework is the less-favoured areas – agriculturally unfavourable regions where ground-mounted photovoltaics can take part in EEG auctions via the EEG's so-called state opening clause, if the respective federal state has enabled it by ordinance. If your conversion site lies in such an area, this further strengthens an already good position.

You do not need to know the details of the framework yourself – the land check spots grid proximity and obvious restrictions automatically, and the developer checks the concrete eligibility later. What matters for you is the insight: what makes your land a problem case agriculturally or commercially is often exactly the advantage that enables the highest lease for photovoltaics.