PNRR Support for Biomethane: How It Works Today
In the biomethane sector, public support is the cornerstone of the business plan. Starting in 2026, the mechanism will consist of a subsidy managed directly by the GSE, with a capital grant and a tariff established through a concession agreement. The application period closed in June 2026: each agreement allows approximately two years to bring the plant online, with actual commissioning expected around 2028. We are overseeing the implementation for those who have an agreement to fulfill and are assessing, for those who were not selected, what is feasible without the PNRR.
Details of the Support
The mechanism consists of just a few elements, each with specific rules that must be understood in order to effectively manage the phase that is now beginning: implementation.
Capital Grant
It covers a significant portion of the investment’s eligible expenses, up to defined limits based on production capacity. It reduces the initial capital required and is the primary factor that makes the project viable. The remaining portion is the responsibility of the client and must be covered with equity or bank financing.
Rate for Energy Fed into the Grid
In addition to this subsidy, a tariff is paid for biomethane produced and fed into the grid for fifteen years, with the amount depending on the size of the plant; below a certain capacity, an all-inclusive tariff is applied that covers the value of the gas and the guarantees of origin.
From Auctions to the GSE Subsidy
Until 2025, the incentive was awarded through competitive bidding processes. With the 2026 restructuring, the measure became a subsidy administered directly by the GSE: the concession agreements published between May and June formalized the eligible projects, including new plants and retrofits.
Timeline and Concession Agreement
The agreements were signed by June 2026, and each one has a timeline of approximately two years until the project becomes operational, with the actual target date around 2028. Any delay in permitting, grid connection, or construction could result in the loss of support: the schedule must be managed from day one, not made up for at the end.
Advanced biomethane
Biomethane produced from waste and byproducts—rather than from dedicated crops—falls into the “advanced” category, which receives the highest incentives. The availability and traceability of the feedstocks affect the bottom line throughout the plant’s entire life cycle and must be monitored even during construction.
Beyond the PNRR
For projects that fell outside the scope of the agreements, there is currently no way to access support, and no new opportunities have been announced. However, a plant can still be viable based on its fundamentals: guarantees of origin, the renewable gas market, off-take agreements, and—for those in the biogas sector—comparison with the BIO-PMG. This assessment must be based on the specific numbers of each individual project before committing capital.
What We Monitor to Maintain Support
With the agreement signed, support continues on four fronts. We oversee them throughout the entire implementation process, because a mistake at this stage would result in disqualification.
Timeline
Actual timelines for permitting, connection, and construction compared to the terms of the agreement: we need a realistic timeline, not an overly optimistic one.
Compliance with the Agreement
Consistency between the approved project and the one that is actually carried out: variations and modifications are handled in accordance with operational rules before they become points of contention.
Bankability
A sound business plan and solid contracts are prerequisites for financing the portion not covered by the grant.
Risk of forfeiture
The factors that cause a loss of support along the way must be identified and prevented from the outset.
How We Support You
We oversee the implementation process for those with a concession agreement, from the timeline to preventing the forfeiture of the concession. For those planning projects without PNRR support, we assess feasibility and cost-effectiveness, with the same team handling everything from analysis to operation.
Go to related pages
Where to learn more, within the world of Onirico Suisse.
An initial overview of the project and its timeline.
Tell us where the project stands: an agreement to be finalized, a construction project to be launched, or an idea to be evaluated without funding. We’ll respond with an initial technical and financial assessment—provided confidentially—that outlines timelines, risks, and alternatives.