Decarbonization›LDAR Program Economics
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LDAR Program Economics

Methane · $/tCO₂e abatement · EPA OOOOa

LDAR (Leak Detection and Repair) Economics
Marginal cost of methane abatement ($/t CH₄ and $/tCO₂e) for an LDAR program: component count, leak fraction, survey/repair cost, recovered gas value, and net societal benefit at the EPA Social Cost of Carbon. Per EPA OOOOa/b/c, EPA Subpart W, OGMP 2.0.

Facility Inventory

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%
kg/h

Program Cost

/yr
$/survey
$/leak
%

Economics

$/mscf
—
$/tCO₂

📚 Learn the Theory

LDAR program economics, EPA OOOOa/b/c framework, OGMP 2.0 reporting levels, and the social cost of methane abatement vs gas-recovery economics.

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Engineering Basis

  • EPA OOOOa requires quarterly OGI camera surveys for compressor stations.
  • Avg leak rate 0.05 kg/h is EPA Subpart W default for "leak" components.
  • Repair efficiency 90–95% typical (some leaks recur within months).
  • GWP CH₄ = 28 (IPCC AR5 100-yr); GWP-20 (84) used for short-term focus.
  • SCC default $51/tCO₂ — EPA 2023 interim value.
  • Standards: EPA OOOOa/b/c, EPA Subpart W, EPA AP-42 §5.3, API Compendium, OGMP 2.0.

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