Why Successful Climate Tech Pilots Do Not Always Become Purchases

A climate tech pilot can succeed technically and still end without a purchase, because the pilot answered a narrower question than the one the buyer needs answered to spend money. Procurement ownership, rollout budgets, incumbent suppliers, subsidised pilot economics and the absence of an agreed next step all sit outside the test. Founders convert more pilots when they design each one backwards from the decision that follows it.

The pattern is familiar. The equipment works. The performance data looks good. The customer team is positive and the final presentation ends with congratulations. Six months later there is no purchase order. Founders often read this as a messaging problem or a slow corporate sales cycle. Sometimes it is. More often the pilot proved something other than what the organisation needed in order to buy.

This article covers the commercial side of that gap. The evidential side, what a pilot result can and cannot prove about a first commercial project, is covered in From Pilot to Project.

A pilot is an experiment inside an institution

Founders tend to treat the pilot as a test of the technology. The customer organisation is usually running several tests at once. It is checking whether the technology works, whether the startup can deliver, how hard integration will be, what price is realistic, which internal team wants ownership and how much budget a rollout would need. It may also be gathering data it can take into a negotiation with its current supplier.

A technically successful pilot can therefore create value for the customer without creating a purchase for the startup. That usually reflects different objectives on each side, and it rarely reflects bad faith. The founder's first job is to know what the pilot is designed to decide.

A founder in a closed-door discussion at The Decision Room described a pattern that stays with anyone who hears it. A startup demonstrates a credible alternative. The buyer learns enough to show the incumbent that another route exists. The incumbent returns with better commercial terms, and the buyer stays with the incumbent. The pilot succeeded, and its value was captured somewhere else in the negotiation. We wrote this up in Changemakers as Your Pilot Might be Someone Else's Negotiating Chip.

The risk is greatest when nobody defined the path after the pilot. Before the work begins, both sides should agree what a successful result makes possible. That might be a procurement process, a commercial trial, a reserved volume, an offtake negotiation, an investment committee review or a larger technical stage. The agreement does not have to guarantee a purchase. It has to make the decision path visible. A buyer who cannot name what success unlocks has told the startup something useful before months of delivery begin.

Technical success is one gate among several

A pilot can show that a system performs under agreed conditions. Commercial deployment still depends on capital cost, operating cost, warranties, site integration, insurance, permits, supply, maintenance, internal ownership and financing. The larger the physical system, the wider that gap becomes.

This is one reason the step to a first commercial plant is so hard. MaRS Discovery District launched a dedicated first-of-a-kind lab for Canadian cleantech companies in 2026, aimed at the move from pilot to first commercial-scale deployment. Programmes like this exist because the core technology working is one condition among many. The project also needs a financing and delivery structure that fits a much larger decision. The US Department of Energy's Pathways to Commercial Liftoff work makes a similar case across several clean energy technologies.

A successful pilot is evidence for that structure. It is rarely the structure itself. The split between a project that can raise equity and one that can raise project debt is set out in Is a FOAK Project Fundable or Financeable?.

1. 01Technical performanceThe system works under agreed conditions.
2. 02EconomicsCapital cost, operating cost and warranties hold.
3. 03Site and operationsIntegration, permits, supply and maintenance are solved.
4. 04OwnershipSomeone inside the customer holds the budget and the decision.
5. 05FinancingA structure fits a much larger decision.

A pilot clears the first gate. A purchase needs all five.

What the Carbios Longlaville project shows

Carbios, the French PET biorecycling company, offers a public example of commercial progress and project financing moving on different timelines. In December 2024 the company postponed construction of its Longlaville plant by six to nine months, citing delays in non-dilutive sources of financing. In March 2026 it reported significant progress in financing the project and confirmed its objective to build the plant. In August 2026 it published a further update on the financing of the Longlaville project.

The sequence says nothing on its own about the company's technology or demand. It shows that a first industrial plant combines several dependencies. Commercial contracts, public support, equity, debt, guarantees and construction each move at their own pace, and the plant proceeds when enough of them line up. Founders should tell the pilot story with that in mind. A good pilot result closes one of those gaps and leaves the others open.

Who owns the decision after the pilot?

Innovation teams are built to explore. Procurement teams are built to buy under constraints. Operations teams are built to keep systems running. Finance teams control budgets. Sustainability teams may hold targets without purchasing authority. A pilot can be sponsored by one of these groups and need approval from four others before it scales.

Map that governance before the pilot starts. The map should name who owns the rollout budget, who signs the supplier agreement, who carries operational risk, who must approve a new specification and who can block the purchase. Next to each name goes the evidence that person needs. The sponsor who loved the pilot often has no budget line for the rollout, and the procurement lead who does may never have seen the results.

We treat this stakeholder map as a commercial deliverable. It shapes who attends the pilot review, what the final report contains and which questions the pilot data has to answer. The wider version of this map for a first commercial project is in The First Plant Has More Than One Customer.

Free pilots can hide the real economics

A pilot is often attractive to the customer because it spares them the full commercial model. The startup absorbs engineering time. The founder provides custom support. Equipment is subsidised. Inputs are supplied below long-term cost. The customer receives attention from the technical team that no commercial contract would include.

A rollout then looks expensive because the pilot economics were never representative. The buyer compares the rollout price with a pilot that cost them almost nothing, and the gap reads as a price rise.

Make the gap explicit from the start. If the pilot is subsidised, say what is subsidised and why. If commercial-scale cost depends on volume, show the curve and the assumptions behind it. If the first project is deliberately expensive, explain which lessons reduce cost for the next one. A pilot that generates evidence for the commercial economics moves the price conversation forward. A pilot that avoids the economics defers the hardest conversation to the moment the customer has the least reason to have it.

Incumbents compete with a whole system

A new technology may outperform on one measure while the incumbent wins on everything around the product. Existing supplier approval, service teams, credit terms, insurance history, integration, purchasing relationships, known failure modes, contract templates, spare parts and internal familiarity all form part of the competing offer. The pilot tests none of them.

The startup needs to know what would make the organisation accept the cost of switching. Better performance can be enough. Often the reason sits elsewhere, in regulation, supply security or strategic differentiation. Sometimes the answer is a staged purchase that limits the buyer's exposure while the new supplier builds a track record.

The comparison has to include the whole buying system. A founder who presents only the performance delta is competing on the one dimension the incumbent expected to lose.

Success criteria have to be agreed before the test

Pilots stall when the two sides discover afterwards that they meant different things by success. The founder measured yield. The plant manager cared about downtime. The finance lead wanted a cost per tonne that the pilot never reported. Each is a reasonable test, and only one of them was run.

Write the criteria down before installation. Include the technical thresholds, the operational conditions and the commercial assumptions the result will feed. Agree who signs off each criterion. When the pilot ends, the review then checks results against a list both sides accepted, and a pass carries weight inside the customer organisation.

A commercially useful pilot has five parts.

• Decision.The next decision is named before the test begins.
• Success criteria.Both sides have agreed what technical and operational evidence counts.
• Commercial assumptions.The indicative rollout economics are visible from the start.
• Decision owners.The people who control the next stage join the process early.
• Post-pilot route.The meeting, process or contract discussion that follows a pass is agreed in advance.

This structure cannot force a customer to buy. It stops both sides discovering after the pilot that they were running different experiments.

Offtake can be worth more than praise

For many physical climate technologies the decisive commercial signal is a commitment to future volume. A positive pilot report helps. An offtake agreement tells investors and lenders that demand exists at a price and a term.

The strength of that signal depends on volume, term, price, conditions, the buyer's credit quality and enforceability. A non-binding expression of interest and a bankable take-or-pay agreement sit at opposite ends of the range. What Is an Offtake Agreement sets out how that range works for first commercial projects.

After a successful pilot, move the conversation from whether the customer liked it to what level of commitment the evidence now supports. The answer may still be another test. The aim is to make the ladder of commitment explicit, so each step up has a named trigger and a named owner.

What should a successful pilot leave behind?

A successful climate tech pilot should leave the company with more than a case study quote. It should produce evidence that travels into the next commercial and capital decision. That includes performance data, integration lessons, a clearer cost model, a defined procurement path, a committed buyer, a stronger contract structure or a specific list of the barriers that remain.

A pilot that produces none of those was technically useful and commercially incomplete. Some pilots will not convert whatever the founder does. The founder can still know what each pilot was built to decide, and make the next decision visible before the equipment arrives.

Where to start

Before signing the next pilot agreement, write one page. Name the decision the pilot feeds, the people who own that decision, the success criteria in their terms, the real rollout economics and the step that follows a pass. Share it with the pilot sponsor and ask them to route it to procurement and finance. Their reaction tells you more about conversion odds than the pilot will.

Brighter Future builds the pitch and commercial story that carries pilot evidence to buyers and investors. See our pitch and investor narrative work.

Sources and further reading

• CARBIOS postpones construction of its Longlaville PET biorecycling plant for 6 to 9 months, Carbios, 2024
• Carbios provides an update on the financing of its Longlaville plant project, Carbios, 2026
• MaRS launches Canada's first-of-a-kind lab to scale cleantech champions, MaRS Discovery District, 2026
• Your Pilot Might be Someone Else's Negotiating Chip, Brighter Future Changemakers, 2026