Abatement Cost Curve Segment Tool

Use Abatement Cost Curve Segment when checking a supplied environmental cost contribution or comparison.

1. Enter startQuantity, endQuantity, startMarginalCost, endMarginalCost. Use the units and conventions below.
2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
3. Read incrementalQuantity, segmentCost. Use the output convention below.

Require endQuantity >= startQuantity. Return incrementalQuantity = endQuantity-startQuantity and segmentCost = incrementalQuantity*(startMarginalCost+endMarginalCost)/2. Marginal costs must be currency per quantity unit on a matching valuation basis.^[1]

A complete environmental economic analysis compares benefits, costs, baselines and timing. Integrating one supplied cost segment supplies a local cost term rather than a complete policy evaluation.^[2]

• This trapezoidal integral assumes marginal cost varies linearly across the segment. Signed quantities and marginal costs are accepted, equal endpoints give zero cost, and one segment does not construct a complete abatement curve or determine a policy optimum.
• Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
• Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Assemble comparable costs and effects across the full baseline and project, and distinguish financial costs from social costs before ranking alternatives.

• Abatement Average Increment Gap

  Return gap = marginalCost-averageCost.

• Carbon Abatement Marginal Cost One Step Tool

  Incremental cost per avoided tonne for a specified project step, using matched costs and emissions boundaries.