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Digesting organic feedstock (food waste, farm slurry, energy crops) into biogas, then upgrading it to grid biomethane or burning it in a CHP engine. This is a production + incentive business rather than a network: produce green gas, earn the gas price plus a green incentive and a gate fee for the waste, against the cost of feedstock. Pick a real project below and trace it through the plant, the model and a working returns model.
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Drag the sliders to see what earns the money: the capacity of biomethane produced, the incentive-rich price on each unit, and how hard the plant runs.
Anaerobic digestion is a production + incentive business, not a regulated network. The plant digests organic feedstock into biogas, upgrades it to biomethane (or burns it in a CHP engine), and is paid the gas or power value plus a green incentive (the UK's GGSS/RHI, US LCFS/RIN/45Z credits, Brazil's RenovaBio, or rural-energy subsidy) that does most of the work in the price. On top it earns a gate fee for accepting waste feedstock and a little from digestate fertiliser. Against that sits the dominant cost: the feedstock itself and the parasitic power to run the plant. The engine is therefore production × an incentive-rich price, with a contracted, incentive-backed floor underneath. It is genuinely incentive-dependent (drop the incentive and the economics get thin), and feedstock cost and supply are the operational risk. It scales: every new digester adds another incentive-backed production stream.
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See also the Anaerobic-digestion simulator, a deeper interactive plant model, and the Cash-flow & DCF model.