FOAK vs Pilot vs Demonstration vs NOAK: What Is the Difference?

This piece compares the stages side by side, with what each one proves and leaves open. For what FOAK means and why it is hard, read What Is FOAK in Climate Tech? From Pilot to First Commercial Deployment.

A pilot tests a technology at limited scale outside the lab. A demonstration runs a larger integrated system in conditions close to commercial use. A FOAK, or first-of-a-kind project, is the first commercial-scale deployment, and NOAK, or nth-of-a-kind, describes later repeat deployments that can lean on the record of earlier ones.

Why the labels cause confusion

The boundaries between these stages are working conventions. Sectors, developers, funders and public programmes draw them in different places, and two companies can use the same word for projects of very different scale and commercial status. One team calls a plant a demonstration because it runs at a fraction of full size. Another calls a plant of similar size commercial because it sells its output under contract.

No capacity threshold for FOAK works across climate technologies either. A carbon removal facility, a fermentation plant, a thermal storage installation and a mineral processing site have different scales and economics, so commercial scale only makes sense relative to the technology, the customer market and the business model. The practical answer is to state what each project has proven, at what scale, for how long and under what conditions. Our introduction to FOAK in climate tech covers the wider definition.

The comparison

Stage	What it tries to prove	What stays open
Lab and prototype	The mechanism can work	Real-world operation, scale, integration, economics
Pilot	The technology can operate in a relevant environment	Full integration, commercial scale, repeatability
Demonstration	A larger integrated system performs near commercial conditions	First project delivery, contracts, full economics
FOAK	The first commercial-scale project can be built, operated and sold into a real market	Repeatability, a mature cost and schedule reference class
Early-of-a-kind	Learning from the first asset transfers to the next ones	Full standardisation and mature financing
NOAK	The project can be repeated against a strong reference class	Site and market risks that every project carries

Pilot and demonstration

A pilot moves the technology beyond laboratory conditions at limited scale. The team may test equipment reliability, process performance, feedstock variability, environmental conditions or operating procedures. The data is real, and it answers a specific question about whether the mechanism holds up in a relevant environment. Scale then introduces new constraints in heat transfer, mixing, materials, maintenance and control, and a pilot runs under close supervision by the people who designed it.

A demonstration usually runs at a larger or more representative scale. It may use commercial-like equipment, operate for longer campaigns, produce material for customer qualification or test how several subsystems work together. Some companies call a demonstration pre-commercial, and others use the word for a plant that already sells some output. A demonstration claim should therefore travel with its scale, duration, configuration and commercial status. Moving from pilot evidence to project evidence follows what that evidence has to do next.

FOAK: the first commercial deployment

At FOAK the question widens from technical performance to project delivery. The project needs a site, an engineering design, a construction plan, permits, supply agreements, offtake, insurance, equity, often debt or public capital, and an operating team. J.P. Morgan's 2026 climate tech report describes a FOAK plant as a start-up's first commercial-scale facility, where the technology runs at scale for the first time. MaRS frames the same stage as the move from pilot to first full commercial deployment. That commercial-scale requirement is why FOAK is discussed as a financing gap as much as an engineering stage.

LanzaJet offers a documented case. Breakthrough Energy Catalyst's first project funding was a $50 million grant to LanzaJet for what the announcement called the world's first alcohol-to-jet sustainable aviation fuel plant. The US Department of Energy headlined its own account of the plant, Freedom Pines Fuels, World's First Ethanol-To-Jet Fuel Plant Paves the Way for Commercial Production of SAF.

That headline carries two ideas at once. Freedom Pines produces output to sell, and it also gives the next project something real to point at. That double role is typical of FOAK, and it explains why catalytic grant capital appears so often at this stage. A grant can absorb exposure that a commercial lender cannot price yet.

Early-of-a-kind and NOAK: repetition with a record

Early-of-a-kind, sometimes shortened to EOAK, is used less consistently than FOAK and NOAK. Where it appears, it refers to the projects immediately after the first, when the team is repeating the design without a standardised deployment model yet. Project two and project three can still hold a great deal of learning, and cost, contracting and schedule may all change quickly.

NOAK describes deployments made after the design has been repeated often enough to build evidence on cost, schedule, performance and operation. Researchers model that progression with learning rates, as in a peer-reviewed study on progressing from first-of-a-kind to nth-of-a-kind in carbon capture deployment in Sweden. Risk remains at NOAK, because site conditions, counterparties, regulation, feedstock and markets still vary. The team and its financiers can now compare the project with built predecessors, which is what the move from FOAK to NOAK is designed to create.

What TRL measures and what it leaves open

Technology Readiness Levels describe technical maturity on a nine-point scale. NASA publishes the definitions of the technology readiness levels, and many climate funders borrow the framework. A TRL score tells a reader how far a system has progressed from basic principles towards proven operation.

It says nothing about offtake, project development, permitting, bankability or unit economics. A technology can sit at a high TRL while its first commercial project has no buyer and no site. That gap between technical and commercial readiness is where most FOAK difficulty lives. Carbios shows why a single label struggles here. Its Longlaville plant has moved through technology validation, commercial contracting, public support and financing on separate timelines, and its August 2026 financing update reported bank approvals alongside a missed financial close target. The financing side of that gap is covered in why FOAK projects are hard to finance.

Describe the evidence in place of the stage

Before you call your next project a pilot, demonstration or FOAK, write down what has been demonstrated, at what scale and for how long. Add the operating conditions and the failures along the way, the customer or product specifications met and who confirmed them, and the project elements that have precedent. Close with what remains unproven at commercial scale and what the next deployment must establish. Those answers give a reader more than any label.

A one-page summary built from them belongs at the front of a deck or data room. Brighter Future helps teams turn that evidence into investor and project pitches.

Sources and further reading

• MaRS launches Canada's first-of-a-kind lab to scale cleantech champions, MaRS Discovery District, 2026
• 2026 Climate Tech Industry Trends and Report, J.P. Morgan, 2026
• Technology readiness level definitions, NASA
• Carbios provides an update on the financing of its Longlaville plant project, Carbios, 2026