ENGIE has bought two biomethane plants in the Netherlands, one in Hardenberg and one in Alkmaar. Together they lift its European biomethane production capacity to 1.1 TWh a year. ENGIE's own target for 2030 is 10 TWh. The two plants arrive with expansion plans already attached, and those plans say as much about the price as the plants do.
Key takeaways
- ENGIE announced on 16 April 2024 that it had acquired two operating biomethane production units in the Netherlands, located in Hardenberg in the province of Overijssel and Alkmaar in the province of North Holland.
- Leap records a deal value of $67 million for ENGIE's two Dutch biomethane plants, although ENGIE's announcement did not disclose a price and the seller was not named.
- ENGIE's Hardenberg biomethane plant has a production capacity of about 90 GWh a year, to be expanded to about 150 GWh, and its Alkmaar plant about 47 GWh a year, to be expanded to about 94 GWh.
- With the two Dutch plants, ENGIE's installed biomethane production capacity in Europe reaches 1.1 TWh a year, against a goal of 10 TWh a year by 2030.
- ENGIE's Dutch purchase followed its acquisition of the Rainbarrow biomethane plant in the UK in March 2024 and of Ixora Energy from Downing for about $80 million in September 2023.
What is biomethane, and why do utilities want production plants?
Biomethane is gas made by breaking down organic material such as farm waste, food waste or sewage, and then cleaning the resulting biogas until it matches the quality of natural gas. Once upgraded, it can be injected into the ordinary gas grid and used in the same boilers, factories and vehicles. Production capacity is measured in energy per year, so a plant rated at 90 GWh produces about that much gas energy annually.
For a utility like ENGIE, buying production is the most direct way to scale. Biomethane cannot be built at a few large sites the way a wind farm can. Each plant depends on feedstock gathered from its local area, so the business grows plant by plant. ENGIE's purchases over the past year follow that pattern: Ixora Energy in the UK in September 2023, the Rainbarrow plant in the UK in March 2024, and now two Dutch plants in April.
What does the $67 million buy?
About 137 GWh a year of current production: roughly 90 GWh at Hardenberg and 47 GWh at Alkmaar. Leap's record also converts these into the units used in gas markets, about 307,093 MMBtu and 160,371 MMBtu a year respectively.
The value is a hedged figure. ENGIE did not publish a price, and Leap's narrative describes the value as undisclosed, while its structured deal field carries $67 million. Taking that figure, ENGIE paid about $0.49 million per GWh of current annual capacity.
The expansion plans change that ratio. Hardenberg is set to grow to about 150 GWh a year and Alkmaar to about 94 GWh, a combined 244 GWh. That is about 78 percent more than today. Measured against the expanded capacity, the same $67 million works out at about $0.27 million per GWh a year, before whatever the expansions themselves cost. The buyer is paying for running plants and for sites that already have a route to nearly double their output.
How far does this take ENGIE toward 10 TWh?
Not far, which is the point of the comparison. The two plants add about an eighth of ENGIE's European biomethane capacity, taking it to 1.1 TWh. Reaching 10 TWh a year by 2030 would require roughly nine times that capacity. At the average size of these two plants, about 68 GWh each today, the remaining 8.9 TWh would take something like 130 more plants of the same scale.
That arithmetic explains the strategy. A target that large cannot be met through new construction alone in the time available, so ENGIE is buying operating plants with growth already planned. Each acquisition delivers production on day one and an expansion path after it.
Enerdatics records 85 European bio-fuel M&A transactions announced in 2023 and 2024, and only 19 carry a disclosed value. Among biomethane and biogas plant deals with a price, CIP paid $60.3 million for the Envo biogas plant in Denmark in February 2023, Redexis paid $24.03 million for a Spanish biomethane portfolio in March 2024, and Ence paid $18.21 million for the La Galera biomethane plant in Spain in December 2024. Future Biogas agreed to pay $87.45 million for 51 percent of six UK anaerobic digestion facilities in August 2024, which grosses up to about $171 million for 100 percent. At $67 million, ENGIE's Dutch purchase sits in the middle of that range. None of those records gives annual gas output, so a per GWh comparison across deals is not possible from Leap's data.
What does the deal signal for European biomethane?
It signals that large energy companies are assembling biomethane portfolios by acquisition, and that they want operating plants rather than early-stage pipelines. ENGIE is not alone. Repsol agreed to take 40 percent of Genia Bioenergy the same month, and other utilities have since bought whole biomethane platforms that combine plants with the teams that build and run them.
It also signals where price discovery is weakest. With fewer than a quarter of European bio-fuel deals carrying a value, and almost none disclosing output alongside price, buyers and sellers are negotiating with little public reference. Deals like this one, where both the capacity and a value appear in the record, are the closest thing the market has to a benchmark. For anyone valuing a plant, the expansion potential deserves as much attention as current output, because on ENGIE's figures it can nearly halve the effective price per unit of capacity.
Frequently asked questions
Which biomethane plants did ENGIE buy in the Netherlands? Two operating production units, one in Hardenberg in Overijssel with about 90 GWh a year of capacity and one in Alkmaar in North Holland with about 47 GWh a year.
How much did ENGIE pay? Leap records a deal value of $67 million. ENGIE's announcement did not disclose a price.
What is ENGIE's biomethane target? 10 TWh a year of biomethane production in Europe by 2030. After this deal its installed capacity is 1.1 TWh a year.
Ready to get deal-ready answers in seconds? Try Enerdatics Leap AI and access verified intelligence across M&A, financings, PPAs, projects, and energy market developments through natural language.
.jpeg)
