Carbon Credit Insurance in 2026: How a $210M Deal Changed Project Finance

Carbon credit insurance has moved from niche experiment to structural market enabler. In 2026, the voluntary carbon market (VCM) is operating with a financial architecture that barely existed three years ago — one where specialty insurance converts unverifiable promises of carbon removal into bankable collateral, unlocking institutional project finance at scale. The template is set; the question now is how fast it replicates.

The 2025 Inflection Point: How Marsh and CFC Rewrote the VCM Rulebook

Last year’s landmark transaction established the proof-of-concept the market had been waiting for. Marsh placed a carbon credit non-delivery insurance policy underwritten by London-market insurer CFC for Chestnut Carbon — enabling a non-recourse project finance credit facility of up to $210 million led by J.P. Morgan. The deal, announced in August 2025, was the first project financing of its kind in the voluntary carbon market.

The mechanics matter. Marsh secured the carbon credit insurance policy that allowed J.P. Morgan to extend non-recourse debt — meaning repayment depends solely on project cash flows, not developer balance-sheet guarantees. That structural shift is enormous for project developers who previously had to put up corporate equity against delivery risk. J.P. Morgan’s Vijjan Batchu stated the financing gives developers the runway they need to succeed at an attractive cost of capital, making the commercial logic explicit.

The underlying project — acquiring and restoring approximately 60,000 acres of degraded land in the Southern United States, with plans to plant over 35 million native biodiverse hardwood and softwood trees — is anchored by a Microsoft offtake commitment to purchase seven million tons of credits to help achieve its goal of becoming carbon negative by 2030. The insurance policy wraps the delivery risk between forest planting and credit issuance: precisely the gap that had blocked institutional lenders from the VCM.

Swiss Re, We2Sure, and the Product Stack Taking Shape in 2026

The Chestnut/Marsh/CFC transaction did not emerge in isolation. By the time it closed in mid-2025, Swiss Re Corporate Solutions had already laid groundwork with a parallel product line. Swiss Re Corporate Solutions launched a first-of-its-kind insurance product covering long-term carbon credit purchase agreements, with in-kind replacement provisions for non-delivery covering up to five years, in partnership with goodcarbon. That product addresses forward purchase agreements — the structured offtake contracts that corporate buyers increasingly use to lock in future carbon removal at fixed prices.

Where Swiss Re’s forward insurance product targets corporate buyers worried about supplier default, a separate Marsh initiative targets a different failure mode entirely: fraud. Marsh partnered with We2Sure to launch an insurance facility specifically addressing the rising risk of fraudulent carbon credits in the market. As registry manipulation and double-counting scandals have eroded corporate buyer confidence since 2023, fraud coverage has become a prerequisite for institutional purchasing programs at any meaningful scale.

Together, these three products — non-delivery project finance insurance (Marsh/CFC), forward purchase insurance (Swiss Re/goodcarbon), and fraud coverage (Marsh/We2Sure) — form a nascent but functional insurance stack for the VCM. Specialty underwriters are competing to fill each layer, and George Beattie, Head of Innovation at CFC, articulated the ambition directly: “We exist to make deals happen and are excited about a future where blended finance, including insurance, facilitates an economic model for fighting the climate crisis that works for everyone.”

The Renewable-Energy Arc: Why Brokers Are the Kingmakers

Students of infrastructure finance will recognize the pattern. In the 1990s, political risk insurance and construction completion bonds unlocked project finance for emerging-market power plants. In the 2000s, wrap products and production tax credit insurance catalyzed the U.S. solar and wind build-out. Carbon credit insurance is following the same arc: insurance absorbs a specific, definable risk that lenders cannot underwrite themselves, enabling non-recourse debt, which reduces the cost of capital, which accelerates deployment at institutional scale.

The brokers occupying the center of this market — Marsh primarily, with Aon tracking the same space — are not passive intermediaries. They are structuring agents who identify the precise risk transfer that makes a transaction possible, then build a policy around it. The Chestnut deal required Marsh to convince London-market underwriters to price non-delivery risk on a regenerative forestry project at a tenure measured in decades. That is fundamentally a broker’s creative brief, not a standard placement. This dynamic mirrors what is already visible in insurance broker growth across specialty lines, where brokers that develop proprietary risk frameworks command disproportionate market share.

The VCM’s trajectory gives that kingmaker role long runway. The voluntary carbon market is projected to reach $30 billion by 2050, and while the path there is non-linear — VCC prices rose 82% from 2021 to 2022 before the market corrected sharply, with 4,916 projects registered as of January 2024 — the direction of institutional capital is clear. Corporate net-zero commitments are legally embedded in EU CSRD disclosures, SEC climate rules (where applicable), and ISSB-aligned reporting frameworks. Demand for high-integrity credits is structural, not cyclical.

What Underwriters, Project Developers, and Corporate Buyers Should Do Now

For specialty underwriters, the window to establish pricing authority is open but not indefinitely. The Chestnut transaction gave CFC a reference point that competitors will study. Underwriters who move now on non-delivery, additionality-failure, and permanence-reversal risks will set the market price and accumulate the actuarial data. Those who wait will buy into someone else’s book at scale.

For project developers, the strategic implication is that insurance is no longer optional at institutional scale — it is a structuring input. Projects that cannot obtain non-delivery coverage will be confined to bilateral corporate purchase agreements at lower prices and smaller volumes. Developers should engage brokers during project design, not after registry approval, so that insurability constraints (permanence periods, monitoring protocols, registry choice) are built into the project architecture from the start.

For corporate buyers, the fraud coverage product from Marsh/We2Sure signals that the market is treating integrity risk as insurable rather than inherent. That has procurement implications: buyers who have paused VCM activity pending integrity reform can now price and transfer that risk rather than absorbing it. Due diligence standards, however, remain the buyer’s responsibility — fraud insurance is not a substitute for registry vetting, and underwriters will scrutinize project documentation heavily before binding coverage. This is also relevant context for boards assessing natural catastrophe exposure in carbon offset portfolios, where permanence risk and physical climate risk overlap.

“A landmark transaction for the voluntary carbon market” — Chestnut Carbon on the J.P. Morgan-led financing, demonstrating how project financing could reduce capital costs for developers scaling carbon projects commercially.

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Sources used

• Marsh — Carbon credit insurance enables Chestnut Carbon bank financing (Marsh, Aug 2025)
• J.P. Morgan — Chestnut Carbon project finance announcement (J.P. Morgan, Aug 2025)
• Chestnut Carbon — Pioneering deal for carbon removal: J.P. Morgan leads project financing (Chestnut Carbon, Aug 2025)
• Swiss Re Corporate Solutions — First-of-its-kind insurance for carbon credit forwards (Swiss Re, Mar 2025)
• Marsh — Voluntary carbon credit risk insights: fraud coverage and market overview (Marsh, 2024)