Documentation
Fertilizer & Fuel Assumptions
Fertilizer cost is calculated using recent price data published in the Iowa Production Cost Report by the USDA Market News Service. Cost per ton of Anhydrous ammonia (82% N) is converted to cost per pound of Nitrogen (N).
Fuel cost is calculated using price data published by the U.S. Energy Information Administration. Diesel, gasoline, and electricity prices are last year's average, while propane and heating oil prices are updated weekly during the heating season (Oct - Mar).
Greenhouse gas emissions of Carbon Dioxide (CO2), Methane (CH4), Nitrous Oxide (N2O), and Carbon Dioxide Equivalent (CO2e) are calculated using published conversion factors for each fuel.
Nitrogen (N) in the form of Anhydrous Ammonia Fertilizer
Cost | Updated | Data Period | Source |
---|---|---|---|
$0.92622 / lb | February 08, 2022 | Every two weeks | USDA Market News Service: Iowa Production Cost Report |
BTU / lb | CO2 (kg) / lb | CH4 (kg) / lb | N2O (kg) / lb | CO2e (kg) / lb |
---|---|---|---|---|
14,850
(Source: Iowa State Publication PM2089I.pdf) |
1.17782
(Source: Industrial Efficiency Technology Database) |
0.0 (Source: n/a) |
0.0 (Source: n/a) |
1.17782 (Source: Industrial Efficiency Technology Database) |
Potash (Red) (0-0-60) Fertilizer
Cost | Updated | Data Period | Source |
---|---|---|---|
$0.4024 / lb | February 08, 2022 | Every two weeks | USDA Market News Service: Iowa Production Cost Report |
BTU / lb | CO2 (kg) / lb | CH4 (kg) / lb | N2O (kg) / lb | CO2e (kg) / lb |
---|---|---|---|---|
1,075
(Source: Iowa State Publication PM2089I.pdf) |
0.0
(Source: n/a) |
0.0 (Source: n/a) |
0.0 (Source: n/a) |
0.0 (Source: n/a) |
MAP (Monoammonium Phosphate 11%N 52%P) Fertilizer
Cost | Updated | Data Period | Source |
---|---|---|---|
$0.45925 / lb | February 08, 2022 | Every two weeks | USDA Market News Service: Iowa Production Cost Report |
BTU / lb | CO2 (kg) / lb | CH4 (kg) / lb | N2O (kg) / lb | CO2e (kg) / lb |
---|---|---|---|---|
-6,062
(Source: Iowa State Publication PM2089I.pdf) |
0.07489
(Source: Industrial Efficiency Technology Database) |
0.0 (Source: n/a) |
0.0 (Source: n/a) |
0.07489 (Source: Industrial Efficiency Technology Database) |
Midwest No 2 Diesel Retail Prices, Annual
Cost | Updated | Data Period | Source |
---|---|---|---|
$4.898 / gal | January 04, 2023 | 2022 | EIA.gov | OpenData Link |
BTU / gal | CO2 (kg) / gal | CH4 (kg) / gal | N2O (kg) / gal | CO2e (kg) / gal |
---|---|---|---|---|
137,381
(Source: U.S. EIA) |
10.21
(Source: U.S. EPA) |
0.00026 (Source: U.S. EIA) |
0.00144 (Source: U.S. EIA) |
10.32348 (Source: IPCC) |
Iowa No. 2 Heating Oil Residential Price, Weekly
Cost | Updated | Data Period | Source |
---|---|---|---|
$3.637 / gal | January 19, 2023 | 20230116 | EIA.gov | OpenData Link |
BTU / gal | CO2 (kg) / gal | CH4 (kg) / gal | N2O (kg) / gal | CO2e (kg) / gal |
---|---|---|---|---|
138,500
(Source: U.S. EIA) |
10.21
(Source: U.S. EPA) |
0.00008 (Source: U.S. EPA) |
0.00041 (Source: U.S. EPA) |
10.24409 (Source: IPCC) |
Midwest Regular All Formulations Retail Gasoline Prices, Annual
Cost | Updated | Data Period | Source |
---|---|---|---|
$3.809 / gal | January 04, 2023 | 2022 | EIA.gov | OpenData Link |
BTU / gal | CO2 (kg) / gal | CH4 (kg) / gal | N2O (kg) / gal | CO2e (kg) / gal |
---|---|---|---|---|
120,476
(Source: U.S. EIA) |
8.78
(Source: U.S. EPA) |
0.00022 (Source: U.S. EIA) |
0.00126 (Source: U.S. EIA) |
8.87706 (Source: IPCC) |
Iowa Propane Residential Price, Weekly
Cost | Updated | Data Period | Source |
---|---|---|---|
$1.937 / gal | January 19, 2023 | 20230116 | EIA.gov | OpenData Link |
BTU / gal | CO2 (kg) / gal | CH4 (kg) / gal | N2O (kg) / gal | CO2e (kg) / gal |
---|---|---|---|---|
91,333
(Source: U.S. EIA) |
5.74
(Source: U.S. EIA) |
0.00005 (Source: U.S. EPA) |
0.00027 (Source: U.S. EPA) |
5.76165 (Source: IPCC) |
Average retail price of electricity : Iowa : residential : annual
Cost | Updated | Data Period | Source |
---|---|---|---|
$0.1273 / kwh | November 09, 2022 | 2021 | EIA.gov | OpenData Link |
BTU / kwh | CO2 (kg) / kwh | CH4 (kg) / kwh | N2O (kg) / kwh | CO2e (kg) / kwh |
---|---|---|---|---|
3,414
(Source: U.S. Department of Energy) |
0.6464
(Source: U.S. EPA eGrid201) |
0.000011004 (Source: U.S. EPA eGrid201) |
0.000012579 (Source: U.S. EPA eGrid201) |
0.649993667 (Source: IPCC) |