Italy's state-controlled gas grid operator Snam is moving closer to selling its biomethane subsidiary Bioenerys, with three suitors expected to submit binding offers by Wednesday. The interested parties are Italian utility Edison, infrastructure investor F2i, and Retina Biometano, according to sources familiar with the matter. The unit is valued at between €400 million and €500 million.
What is Bioenerys?
Bioenerys is Snam's renewable gas arm, focused on producing biomethane—a fuel made by processing organic waste such as agricultural residues, food scraps, and sewage. Biomethane can be used as a direct substitute for fossil natural gas in heating, transport, and industry, making it a key piece of Italy's strategy to cut carbon emissions while maintaining energy security.
The company says it operates 40 plants and plans to produce 160 million standard cubic meters of biomethane next year. That would represent roughly 10% of Italy's total biomethane market, a significant share in a sector that is still young but growing quickly as the country seeks to reduce its reliance on imported gas.
Why is Snam selling?
This is not a simple portfolio tidy-up. As the state-controlled operator of Italy's gas network, Snam is required to focus on its core regulated infrastructure business. Selling Bioenerys would allow Snam to raise capital and sharpen its focus on pipelines, storage, and LNG terminals, while also complying with regulatory expectations that state-controlled entities stick to their primary mandates.
The sale also comes at a time when European energy companies are under pressure to invest heavily in decarbonisation. By divesting a non-core asset, Snam can free up funds for its main network investments, which are essential for the energy transition but also capital-intensive.
Who are the bidders?
Edison is one of Italy's largest utilities, with a strong presence in gas and power. It already has some biomethane operations, so buying Bioenerys would expand its renewable gas portfolio and give it a larger foothold in the Italian market.
F2i is a major infrastructure fund that has invested in energy and transport assets across Italy. It has shown interest in renewable gas before, and a deal would fit its strategy of owning long-term, regulated-style assets with steady cash flows.
Retina Biometano is a smaller player in the biomethane space, but it could be looking to scale up quickly by acquiring Bioenerys's plants and production capacity.
The fact that three different types of investors—a utility, an infrastructure fund, and a sector specialist—are all interested suggests that biomethane is seen as an attractive growth area with stable returns.
What does this mean for investors?
For Snam shareholders, a successful sale would bring in cash that could be used to reduce debt, fund network upgrades, or return money to investors. It would also simplify the company's structure, which some investors may view positively.
For the broader market, the sale is a signal that biomethane is becoming a mainstream investment. As European countries push to decarbonise their gas grids, biomethane is one of the few renewable fuels that can be used in existing infrastructure without major modifications. That makes it an attractive bet for utilities and infrastructure funds looking for long-term, stable returns.
However, the valuation of €400-500 million is not huge by global standards, so the deal's impact on Snam's share price is likely to be modest. The bigger picture is what it says about the direction of Italy's energy policy and the growing commercial appeal of renewable gas.
What to watch next
The binding bids are due by Wednesday, and a winner could be announced soon after. Investors will be watching the final price and whether any of the bidders sweeten their offers to secure the deal. There is also the question of regulatory approval, though a sale to a domestic utility or fund is unlikely to face major hurdles.
For those following the energy transition, this deal is another example of how traditional gas companies are repositioning themselves. Snam's decision to sell its biomethane unit—rather than keep it and grow it—shows that even state-controlled firms are under pressure to stay focused on their core businesses and let others take on the risk of new technologies.
As the deadline approaches, the outcome will be a useful indicator of how much investors are willing to pay for renewable gas assets in Europe. If the final price comes in at the top of the range, it would be a strong vote of confidence in biomethane's future.


