Why Are E-Methanol Plants Usually Larger?

KAPSOM’s green ammonia portfolio starts at 100 tonnes per annum (TPA). At this scale, a project can validate performance quickly, serve a local user and avoid the risks of moving directly to a large plant. E-methanol projects are rarely proposed at a comparable scale—not because methanol synthesis has a hard technical minimum, but because the surrounding system has a higher practical economic threshold.

What Is the Smallest Green Methanol Scale?

There is no universal minimum because “green methanol” includes different production routes. Alberta-Pacific reported producing approximately 2,000 tonnes of biomethanol in 2025, but it recovers this product within an existing pulp mill rather than operating a standalone Power-to-Methanol plant. Vast’s South Australia Solar Fuels project is designed for 7,500 TPA, although it remained under development after completing pre-FEED.

For operating commercial e-methanol, the clearest benchmark is European Energy’s Kassø facility in Denmark, with a nameplate capacity of 42,000 TPA. Topsoe’s standardized ModuLite eMethanol range starts at 150 tonnes per day—about 49,500 TPA at 330 operating days—indicating the scale at which commercial modules are currently packaged.

Why Does E-Methanol Resist Micro-Scale Deployment?

Green ammonia needs green hydrogen and nitrogen, which can be separated from air at the project site. A small plant can supply nearby farms or industries and avoid transporting ammonia.

E-methanol also needs a reliable source of qualified carbon dioxide. IRENA estimates that one tonne of renewable methanol requires about 1.38 tonnes of CO₂ and 0.19 tonnes of hydrogen. CO₂ capture, purification and compression must be combined with synthesis, gas recycling and methanol distillation. These fixed systems do not become proportionally cheaper as output falls. Methanol is also liquid at ambient conditions and comparatively easy to transport, reducing the economic advantage of ultra-local production.

Does Larger Scale Mean Fewer Operating Projects?

Generally, yes. A higher practical entry scale means greater absolute investment, larger CO₂ and offtake commitments, and more complex financing. However, it is not an absolute limit: integration with a pulp mill, biogas facility or concentrated biogenic CO₂ source can lower the threshold.

For KAPSOM, the implication is clear: 100-TPA green ammonia can be a practical deployment model, while e-methanol capacity should follow carbon availability, product demand and system integration—not the same scale logic as ammonia.