World Bank auctioned climate subsidies as tradable put options

Low carbon-credit prices left methane projects in developing countries at risk: the climate benefit existed, but the market price did not cover the cost of keeping gas capture running.

The World Bank's Pilot Auction Facility turned the subsidy into a market instrument. Funders committed money, firms competed in online auctions, and winners bought put options that gave them the right, not the obligation, to sell verified emission reductions at a guaranteed strike price.

The first auctions made the terms explicit. Winners in the first auction paid $0.30 per ton for options with a $2.40 strike price; in the second, they paid $1.41 per ton for a $3.50 strike price. If they could not deliver, the option could be traded to someone who could.

By the sixth and final payment in 2021, the PAF had paid US$54.7 million to investors for carbon credits representing 21.3 million tons of CO2 equivalent. Public money moved only after third-party verification.

Auction the subsidy, not the project

The auction revealed the minimum subsidy needed instead of letting projects name their own grant.

Put options gave firms downside protection while preserving upside if carbon prices recovered.

Tradability moved the guarantee toward whoever could actually deliver the reductions.

Payment after verification made the program buy outcomes rather than promises.

When a public buyer wants an outcome, auction a measurable price guarantee and let delivery risk sit with the firms that claim they can perform.

The PAF closed after its piloting phase. The World Bank said the model was being explored for replication in other high-emitting sectors, and described the climate auction results as evidence that governments can use price guarantees to leverage private climate investment.