Markets
Bankability in Italian utility-scale PV: five diligence gaps investors still miss
Italian utility-scale PV has moved decisively onto the radar of institutional capital. Yields have compressed. Auction dynamics have shifted. Portfolios that would have been considered too fragmented a few years ago are being underwritten as aggregated platforms.
The diligence, in most cases, has not caught up.
We have sat on both sides of enough transactions in this market to observe a consistent pattern. Deals fail, or fail to close on time, for the same five reasons. They are almost never about the physics of the plant.
Gap 1: Authorization stack rigour
A plant can be in operation and still have a non-trivial risk in its authorization chain. Autorizzazione Unica, PAS, environmental authorizations, connection agreements and land use approvals are not redundant — they are layered, and some of them expire or can be challenged after commissioning.
A PDF of the Autorizzazione Unica is a starting point, not a clearance. The diligence should reconstruct the full chain, confirm the authorizations still align with what the plant actually built (design variants happen), and check for open or time-barred administrative appeals.
Gap 2: Land agreements that outlast the incentive
Land contracts — superficie, lease, easement — are often written to match the original incentive horizon. When the plant continues operating beyond that horizon (repowering, lifetime extension, post-incentive merchant tail), the land terms become the binding constraint.
We often find clauses that silently reassign ownership of infrastructure to the landowner, or that require renegotiation at precisely the moment the asset becomes a merchant play. These are recoverable — but only if they are identified early.
Gap 3: Interconnection capacity that may not be yours for much longer
Domanda di connessione granted under one regulatory vintage is not automatically preserved under the next. Terna and the local DSO have become more active in reviewing and, in some cases, revising connection conditions. An acquisition underwriting should not treat the soluzione tecnica minima as immutable.
Gap 4: O&M contracts that quietly leak yield
Full-service O&M contracts in Italy range from excellent to ornamental. The question is not the headline price. The question is what the contract actually guarantees against — performance ratio bands, availability SLAs, spares inventory, response times — and what the operator has the legal and operational capacity to deliver.
We routinely see contracts where the SLAs are notional and the KPIs are not verifiable against the monitoring data the asset manager receives.
Gap 5: Monitoring data that no one ever asked to see
This is the gap that has surprised us most. On the majority of diligence engagements, the monitoring platform data is available, but it has never been aggregated against the contractual KPIs, never been benchmarked against plant model predictions, and never been reviewed by someone who also read the O&M contract.
A single integrated pass through the monitoring data, the plant model, and the O&M contract surfaces more material issues than any desktop review we have ever conducted.
The common thread across all five is that they are integration problems. The individual documents are clean. The interactions between them are where the value — or the risk — lives. That is also why diligence done in silos, with each workstream reporting separately to the investor, so often misses them.
If you are looking at an Italian PV acquisition and want an operator’s second read before you sign, talk to us early.