45Z + USDA FD-CIC
Plan for the sustainable feedstock acres needed for a lower fuel CI
Score every county in a sourcing region with the USDA FD-CIC model, then find the cover-crop and tillage acres it takes to reach a target feedstock CI.
County acres, yield and CI
NASS 2025, gap-filled from 2022-2024, then from the county's district (soybeans: 2025 survey counties only). Feedstock CI scores every county with FD-CIC at your inputs.
Grain already farmed under each practice
45Z has no additionality test: a bushel grown under no-till or a cover crop scores just as low whether the practice is new or ten years old. Each county's acres are split by its 2022 Census of Agriculture shares of no-till, reduced-till and intensive-till cropland and of cropland in cover crops, then scored under each bundle. The supply is the most of that grain, from the selected counties (every U.S. county with acres when none is selected), whose average CI is at or below the target: everything below it, plus grain above it blended in lowest CI first.
Grain at the target
-
From conservation practices
-
Acres
-
Average CI (g CO2e/bu)
-
Against the plant's grind
-
Practice shares are from the 2022 Census of Agriculture, for the 2022 crop year (released February 2024; the next Census covers 2027). The Census reports practices for all cropland, not by crop, and soybeans are no-tilled more often than corn, so corn's no-till share is likely overstated. It does not say which tillage the cover crops sit on, so choose above; nor does it separate grazed cover crops, so all count as cover crop. Counties the Census withheld take their state's shares. A screening estimate: enrolled bushels need field-level FD-CIC scores.
| County | State | No till / reduced / conv. till / cover crop | Grown today (bu) | At the target (bu) | Acres | Conservation | CI (g CO2e/bu) | On its own (bu) |
|---|---|---|---|---|---|---|---|---|
| Loading... | ||||||||
45Z credit
Start from the plant's current 45Z emissions rate, as 45ZCF-GREET gives it with its default feedstock: every bushel at FD-CIC's national-average CI. Grain enrolled from the selected counties, or every U.S. county when none is selected, replaces some of those bushels, and the rate moves by k for each g CO2e/bu the grain sits below or above the default. The credit is the applicable amount times the emissions factor, (50 − rate) / 50, on every gallon produced and sold.
Plant
The applicable amount is $1.00/gal when the plant meets the prevailing wage and apprenticeship (PWA) requirements and $0.20 when it does not, before the inflation adjustment for the production year. The rate, ethanol and yield start at the plant you drew a radius around, with the current CI and yield set in its popup on the map; with no CI set, the rate is the 50 benchmark, which earns no credit. A blank k is the analytic s / (1000 × gal/bu × LHV): for ethanol s is 1, every gram of farm emissions on the fuel, at 0.07633 MMBtu/gal; for soybean biodiesel s is about 0.35, the oil's rough energy share against the meal, at 0.11955 MMBtu/gal and 1.5 gal/bu. Enter the k from two 45ZCF-GREET runs to replace it.
Current credit
Emissions factor
-
Credit per gallon
-
Credit a year
-
Grain ground a year
-
Enter the plant's fuel output, or click a plant on the map and draw a radius around it.
Fuel rate by emissions factor
Grain needed by practice
For each practice bundle, the acres and bushels that bring the averaged rate to each of the next credit steps, drawn as set below, and the most the practice can do with every bushel the plant grinds. Click a cell to enroll that much. The tranche reading has no steps to reach: every enrolled gallon earns at its own rate, which the enrolled-grain comparison shows.
| Enter the plant's fuel output, or click a plant on the map and draw a radius around it. |
Enrolled grain
Acres or bushels from the selected counties (every U.S. county with acres when none is selected) under one practice bundle, at their scoring yield. Drawn from every county, the grain carries the straight average of the counties' CIs; drawn lowest CI first, the CIs of the counties it takes, weighted by their bushels. The plant takes no more than it grinds. How 45Z credits a mix of enrolled and default bushels is not settled, so both readings are shown: the rate averaged over every gallon, or the enrolled gallons at their own rate (the tranche).
Selected counties
Each county's scoring inputs and its FD-CIC carbon intensity (g CO2e/bu) under conventional, reduced and no tillage. The 45Z default is FD-CIC's national-average CI, which bushels outside the plan carry: conventional shows each county's difference from it, and reduced and no till their difference from conventional. Type in a cell to use your own yield, N rate or inhibitor share for that county; a blank cell takes the sidebar's, and a blank N rate is FD-CIC's benchmark at the county's yield. Production is scoring yield times harvested acres. The totals give the straight average of the counties' CIs, each county counting once, and their yield is total production over harvested acres.
| 45Z default (g CO2e/bu) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Loading county data... | |||||||||||
Built with Reflex