Document OEKLazVpaw7o6ZEvn1Gk9x0o1

Minnkota Power Cooperative, Inc. Milton R. Young Station Unit 1 and 2 A14559.013 Rev. 2 May 22, 2024 Cost of Fuel Additive: o Table 12 Est. 2021 Additive Cost -- EPA noted that "Additive costs are unknown. For this analysis, the EPA assumed the additive costs are the same, annually, as the sorbent costs." And lists costs as MRY Unit 1: $227,410 and MRY Unit 2: $147,267 o Based on MRY operational costs for 2023, actual fuel additive costs for achieving current compliance with 4.0 Ibiff3tu indicated MRY Unit 1 $715,157 and MRY Unit 2:$1,574,793. o Based on the actual 2023 fuel additive usage r ates and costs, EPA's underestimate results in $487,747 and $1,347,383 that should have been included in the cost analysis for MRY Units 1 and 2, respectively. 3.1.2.Future Hg Compliance Cost Effectiveness (1.2 lb/TBtu) EPA calculated unit-level cost-effectiveness to meet the proposed, more stringent, emissions standard using brominated activated carbon at an injection rate of 5.0 lb/MMacf for units with an ESP for PM control or at an injection rate of 2.5 lb/MMacf for units withfabric filter for PM control. With respect to MRY, the EPA estimated the cost effectiveness (assuming 2021 operational characteristics) is shown below in an excerpt from Table 13 in 2023 Technology Review for the Coal- and Oil-Fired EGU Source Category (Docket ID. No: EPA-HQ-OAR-2018-0794): TABLE 13. ESTIMATED COST-EFFECTIVENESS TO MEET A REVISED MERCURY OF 1.2 LIIITIRTU AT LIGNITE-F1RED EGUS (ASSUMING 2021 OPERATIONAL CHARACTERISICS) YInni Numr 5Jxnlu.nxlN.lxm: I ehowl (Mk I 1chentl 1/Ms I 11.1,1kw R Yourt, 'Halt.R Yews 1 Mayo Oak Knwer I Meye Oak Power 2 PMteeing VI, FSP(' I- SFr: I ISM' I F519 I PI FT 11.44 gigging glieritul WM Mg le PI Ng CI (MI ilr-kti rum (DeMNI4e1) Itii lif-uAsr s.d...i (16) neat non) cite*, . ,... 4.... Sealed midi*. 11i 7 1,) 7.79 779 9 1462 )4A, 1 9I.X 142.2 I501 113.6 20.0 ! pl t 14 II -141 2004 1942 155Y 16.46 91121 4_ 591 191 5.n ieli.:, 1 i $4;.4: 5.1, n95,94.1 tren.1.17 t0 111.751 SM177.nln 10 (0-n ,e, u ill 101 .fg . 2!J.Mt? 111 . 21,..91.0 529 /1431 53:K4.19 55,1X4 11,7n2 $5.691 51.7117 0c 109 11.79 $1.6, 5 OE tells) anemlagg prerico Amulet' mItligive4 511,5X9 19.444 13971 S7 MO SX7fiI S2.114 $2.424 gre Ka, lo,reunk Paulo! 2 0.ik Inn, c I Slatin lac 1 NI (irure 7 Nan Miruel I Marlin Late? Mailin Lake 3 ri 12.41) i. I S1'< R' 14 60 9.21 : M.61 F.SP4" 14.61 I-IP4' X.:1 ESP(' 7.65 109.4 9X110 192.7 /17 ` J46.6 I41.1 37'2.6 1026 110 16 57.16 7155 1.14.-If 1541 5609 3.0 9.e4) $31,0.51b 4.lo . 1.414.4M S1.91.1.40% ,..I. L.160.741 $1., 94.152 10 1.I61,t13 S1.1.4.5,. S.0 T.4,167 SW10.292 . SA, 1.110.919 $1 4 40,55+ 5.0 L .50.1:50 51.703,170 SI 541' n5.452 5.1.6.4" 5" 9X 1.4 .4" 55.647 s3 MC 51.7h 39.2S7 51.126 $4 o '! 1/.2117 Seltl EPA's incremental cost-effectiveness per the 2024 Update to the 2023 Proposed Technology Review for the Coal- and Oil-Fired EGU Source Category (Docket ID. No: EPA-HQ-OAR-2018-0794) is based on a model 800 MW Gulf Coast lignite-fired EGU with a heat rate of 11,000 Btu/kWh operating at an 80% capacity factor and a Hg concentration of 25.0 Ibrifitu resulting in an incremental cost-effectiveness of $28,176 per pound of Hg controlled. It assumes that the unit currently meets a Hg emission standard of 4.0 IbrUBtu using an injection rate of 2.5 lb/MMacf of non-brominated activated carbon at a sorbent cost of $0.80/lb and that the Mercury Testing Results for the MATS Residual Risk and Technology Review Sierra Club FOIA 2025-EPA-04883 11 Sargent a Lundy ED_018388_00000327-00025 SC_EVERSPLIT0006334