ARS "Baseline" DDGS plant 38,717 BTU/gal 3,242

2022 "Vanilla" DDGS plant projection 28,660 BTU/gal 2,251

2022 Projections, DDGS "Vanilla" Plant 28,660 BTU/gal 2,251 With CHP 30,898 BTU/gal 512 With CHP and Fractionation 25,854 BTU/gal 1,512 With CHP, Fractionation and Membrane Seperation 21,354 BTU/gal 1,682 With CHP, Fraction, Membrane Seperation, and Raw Starch Hydrolysis 16,568 BTU/gal 1,682

2022 Projections, Wet DGS "Vanilla" Plant 17,081 BTU/gal 2,251 With CHP 19,320 BTU/gal 512 With CHP and Fractionation 17,285 BTU/gal 1,512 With CHP, Fractionation and Membrane Seperation 12,785 BTU/gal 1,682 With CHP, Fraction, Membrane Seperation, and Raw Starch Hydrolysis 9,932 BTU/gal 1,682

Assumptions 40.4% of thermal energy is used for drying DGS, 59.6% used for ehtanol production Corn fractionation reduces thermal energy usage by

17.6% of total for DDGS (Updated Mueller Paper) Corn fractionation reduces thermal energy usage by

7.1% when producing wet DGS (since drying benefits of fractionation are irrelevent) Corn Fractionation increases electrical energy use by 1000 BTU/gal (Mueller Paper, increases to 1kW h per gal) Mem brane separation reduces thermal energy usage by

4500 BTU/gal *Conversations with Vaperma/EPA(Vane) Mem brane separation increases electricity usage by

0.05 kW h per gal *Conversations with Vaperma/EPA(Vane) Mem brane separation reduces thermal energy by 15.7% and increases Electrical by 7.6% from 2022 base Raw Starch Hydrolysis reduces base thermal energy by 16.7% Plants with fractionation produce 0.163kg corn oil/gal ethanol Natural Gas Thermal Electricity

Natural Gas Thermal Electricity

Natural Gas Thermal ElectricityBTU/gal 43,447 BTU/gal 3,125 BTU/gal

BTU/gal 35,824 BTU/gal 2,694 BTU/gal

BTU/gal 35,824 BTU/gal 2,694 BTU/gal BTU/gal 39,407 BTU/gal 205 BTU/gal BTU/gal 33,102 BTU/gal 986 BTU/gal Natural Gas Boiler BTU/gal 27,477 BTU/gal 1,191 BTU/gal Natural Gas CHP BTU/gal 21,495 BTU/gal 1,191 BTU/gal Coal Boiler Coal CHP Biom ass Boiler Boim ass CHP BTU/gal 21,351 BTU/gal 2,694 BTU/gal Integ. Biogas Energy System BTU/gal 24,934 BTU/gal 205 BTU/gal BTU/gal 22,390 BTU/gal 986 BTU/gal BTU/gal 16,766 BTU/gal 1,191 BTU/gal BTU/gal 13,200 BTU/gal 1,191 BTU/gal

Corn Oil Extraction Raw Starch Hydrolysis Corn Fractionation Mem brane Seperation

Corn fractionation reduces thermal energy usage by

7.1% when producing wet DGS (since drying benefits of fractionation are irrelevent) Corn Fractionation increases electrical energy use by 1000 BTU/gal (Mueller Paper, increases to 1kW h per gal) Dry Thremal Avg. (w/improvements) Mem brane separation reduces thermal energy usage by

4500 BTU/gal *Conversations with Vaperma/EPA(Vane) Dry Electrical Avg. (w/im provements) Mem brane separation increases electricity usage by

0.05 kW h per gal *Conversations with Vaperma/EPA(Vane) Wet Thremal Avg. (w/improvements)* Wet Electrical Avg. (w/improvements)

Assuming 37% DGS sold wet 2022 Thermal Average 2022 Electrical Averate Natural Gas Fueled Coal Fueled Biom ass Fueld Biogas Fueld

2022 Natural Gas plant with Corn Oil Extraction Dry DDG Wet DDG We ighted Avg (37% wet) Biomass Electricity Thermal Electricity Biomass Electricity Thermal Electricity Biomass Electricity Thermal ElectricityNumber of Plants Thermal Energy Electrical Energy Thermal Weighted

2020 2025 2022 2020 2025 2022 2022 (kW h) 2022 (BTU) 54.0% 42.0% 49.2% 29156 27915 28660 0.66 2251 14101 11.0% 13.0% 11.8% 31433 30096 30898 0.15 512 3646 0.0% 0.0% 0.0% 36444 34894 35824 0.79 2694 0 4.0% 4.0% 4.0% 40089 38383 39407 0.06 205 1576 10.0% 12.0% 10.8% 36444 34894 35824 0.79 2694 3869 9.0% 12.0% 10.2% 40089 38383 39407 0.06 205 4019 12.0% 16.0% 13.6% 13211 12649 12986 0.06 205 1766 Total 28977

Reduction We ighted Reduction We igthed Reduction We ighted Reduction 70.0% 5.4% 3.78% -9.9% -6.93% 0.0% 0.0% -9.9% 22.0% 16.7% 3.67% 0.0% 0.00% 16.7% 3.67% 0.0% 20.0% 17.6% 3.52% -29.0% -5.80% 7.1% 1.42% -29.0% 5.0% 15.7% 0.79% -7.6% -0.38% 15.7% 0.79% -7.6%

Total 11.76% Total -13.11% Total 5.88% Total

25570 1714

16255 1714

22123 BTU/gal 1714 BTU/gal 61.0% 4.0% 21.0% 14.0%

2022 Natural Gas plant with Corn Oil Extraction Thermal Electrical 27111.98 2473.409 17,081 2473.409 23400.56 2473.409 Wet DDGS Thermal Energy Electrical Energy 2022 Penertaion Thermal Energy Dry DDGS Electrical EnergyElectrical Weighted

1107 60 0 8 291 21 28 1515

We ighted -6.93% 0.00% -5.80% -0.38% -13.11% Electrical Energy