Test the margin after the policy ends
The workbook is a screening tool, not a project finance model or eligibility determination. Start with your project's cost boundary and contracts; do not treat the illustrative defaults as disclosed project economics.
1. Lock the project boundary
Choose the pathway and jurisdiction, then enter delivered pre-support cost, actual buyer price, annual production, lifecycle CI, eligible capital and relevant years. Keep currencies and price years consistent before comparing rows.
2. Preserve the instrument's native unit
Complete only the relevant market modules. Keep 45Q in dollars per tonne and capital credits as a percentage until the workbook converts them. Classification, targets and unsigned awards are not realized cash.
3. State what is known
Separate qualification, eligible share and monetization. Do not use a percentage assumption to disguise a missing legal or technical determination. Leave unsupported incentives at zero.
4. Run the downside
Compare full support, 25%, 50% and 100% haircuts, delay and expiry. Support duration and financing tenor are separate inputs. Read the post-expiry buyer price and cost, not only the supported-year margin.
5. Record the decision
Advance, redesign or relocate, wait, or stop. Record the specific price, qualification evidence, contract or schedule change that would make you change the call.
Download calculator (.xlsx)
Workbook source baseline: August 22, 2026. Website guide: August 25, 2026. Policy and project status may change. Technology, policy and project-economics commentary only—not legal, tax, accounting, lending or investment advice.