The Netherlands has taken a decisive step towards creating a mandatory market for biomethane through a renewable gas blending quota. Spain, for its part, has embarked on the same path with Royal Decree 7/2026. The comparison between both countries offers a valuable lesson on how to transform theoretical potential into actual production.
For years, the debate on biomethane in Europe has revolved around its potential. Resource potential, emissions reduction potential, energy independence potential, or rural development potential. However, the energy transition is not built on potential. It is built on executed projects, mobilized investments, and markets capable of absorbing production.
In this context, the Netherlands has just taken a particularly relevant step. The Dutch Government has submitted its Green Gas Blending Obligation Bill to Parliament, a mechanism that will progressively require gas suppliers to incorporate biomethane and other renewable gases into the building, road transport, and small industry sectors. This decision is much more than a regulatory amendment. It sends a clear signal to the market: biomethane no longer depends exclusively on aid or incentives and becomes a structural part of national energy policy. The question that inevitably arises is: what can Spain learn from this experience?
The Netherlands: creating demand to accelerate supply
The Dutch proposal is based on a simple premise: for investment to exist, a market must first exist. The new system establishes a blending obligation for gas traders, who must annually certify a certain amount of biomethane using Green Gas Units (GGUs). The mechanism will progressively increase to achieve reductions equivalent to 2.85 million tons of CO₂ per year between 2031 and 2035. In energy terms, this is approximately equivalent to:
- 840 million cubic meters of biomethane annually.
- Around 5.5% of the gas supplied to sectors covered by ETS2.
- A volume equivalent to 10% of the LNG currently imported for domestic consumption in the Netherlands.
Most significantly, the Dutch Government explicitly recognizes that the objective is not solely climatic. The regulation simultaneously pursues:
- Reducing external energy dependence.
- Strengthening security of supply.
- Developing a national industrial value chain.
- Fostering the integration of the European biomethane market.
- Providing stable and predictable investment signals.
In other words, biomethane is no longer considered solely an environmental tool but becomes an industrial and energy policy tool.
Spain: extraordinary potential yet to be developed
The comparison with Spain is particularly interesting. Our country has one of the greatest biomethane production potentials in Europe thanks to the size of its livestock, agri-food, and organic waste management sectors. However, for years, the sector’s development has faced a fundamental challenge: the absence of robust demand creation mechanisms.
We started the year with the approval of Royal Decree-Law 7/2026, which for the first time incorporates a system of mandatory quotas for renewable gases. The proposals currently put forward include indicative targets of the order of:
2028 —— 0,5%
2029 —— 1,2%
2030 —— 1,8%
2035 —— 6%
Beyond the specific details that the regulatory development may finally adopt, the conceptual shift is evident: Spain is beginning to evolve from a model based exclusively on supply towards a model where demand is also boosted.
If we compare Spain and the Netherlands, the paradox is evident.
Spain has considerably greater resource potential than the Netherlands, but the Netherlands has advanced faster in building regulatory instruments capable of transforming that potential into effective demand.
|
Indicator |
Spain |
The Netherlands |
|
Current biomethane production (2026) |
~1.4 TWh/year (0.4% of annual consumption) |
~3.4 TWh/year (1.5% of annual consumption) |
|
Estimated technical potential according to Climate Agreement |
>40 TWh/year (conservative estimate) |
~20 TWh/year (7x current production) |
|
Market mechanism |
Quotas under development |
Legislated blending obligation |
|
2030 Target |
1.8% proposed quota |
1.1 bcm (~11 TWh) Equivalent to 20% of supply to buildings and small industry 3.8 MtCO2/year reduction |
|
2035 Target |
6% proposed quota |
5.5% of gas supplied to ETS2 sectors 2.85 MtCO₂ equivalent |
|
Main motivation |
Decarbonization and waste valorization |
Energy security + climate + industry |
If Spain were to achieve a penetration level similar to the Dutch target for the early 2030s (around 5-6% of gas consumption), the national biomethane market would have to multiply more than tenfold compared to the current situation. This would mean increasing from approximately 1.4 TWh to over 18 TWh of renewable production annually.
The comparison between Spain and the Netherlands is particularly revealing. Today, the Netherlands produces approximately two to three times more biomethane than Spain (around 3.4 TWh versus 1.4 TWh annually), despite having significantly lower resource potential. However, while the Dutch technical potential is around 20 TWh annually, Spain far exceeds 40 TWh in a conservative estimate and could reach much higher figures according to various sectoral studies. The current production volume of the Netherlands is similar to what 150-200 average Spanish plants would produce. And yet, the Dutch government has decided to create mandatory demand through blending quotas. The Government explicitly assumes that biomethane is a tool for:
-
- energy sovereignty,
- reduction of LNG imports,
- climate compliance,
- and support for industrial competitiveness.
The difference is not in the available resources, but in the speed of transforming that potential into real production. The Netherlands already produces approximately 17% of its estimated potential, while Spain has barely begun to develop a very small fraction of its own. This explains why creating demand through blending obligations has become a strategic priority for the Dutch Government: the goal is not only to increase production, but to offer a stable regulatory signal that accelerates investment decisions.
If Spain manages to combine its extraordinary availability of agricultural and agro-industrial resources with effective regulatory mechanisms, it could, in the medium term, surpass the current production of leading countries like the Netherlands and become one of the main European biomethane markets. The challenge is no longer to identify the potential, but to deploy it quickly, with legal certainty and territorial acceptance.
The Netherlands demonstrates that leadership in biomethane does not depend on who has more biomass, but on who first creates the conditions to convert it into renewable energy.
#Biomethane #Regulation
Documents of interest
- Netherlands Green Gas Blending Obligation Bill.
- Opinion of the Dutch Council of State (March 2026).
- Royal Decree-Law 7/2026 and associated public consultations.
- Spain’s Biogas Roadmap.
- RED III Directive.
- ESR Regulation.