MT to PNW Existing System and Capacity Appendix

MT to PNW - Existing System and Capacity Appendix A ATC = 360 MID C WOG WOH AVA TTC 4277 ATC 600 360 BPA 3677 TTC Path 8 2200 MW AVA Path 8 Capacity 382 Total from NWE ATC NWE Path 8 Capacity 690 Total ATC to BPA 146/246 2 ATC to AVA 297 BPA Path 8 Capacity 308 Total from NWE 420 MW to NWE Network 1618/ 3 1818 BPA Path 8 Capacity 1510 Total from NWE 0/ 200 Garrison BPA Network West of Garrison TSRs 757 5 TTC = 1930 TTC = 2260 ATC = 184 ATC = 162 ATC = 164 BPA Eastern Int. Rights Holder Colstrip Broadview Colstrip Tx System T’send-Garrison TTC / ATC B’view-T’send TTC / ATC Colstrip-B’view TTC / ATC PSE 680 / 0 759 / 96 746 / 83 270 PGE 280 / 0 312 / 5 308 / 0 205 AVA 210 / 0 234 / 12 230 / 8 156 PAC 140 / 0 156 / 0 154 / 0 0 NWE 420 / 0 469 / 49 823 / 73 Other BPA 200 / 184 1 230 4 1618 For informational purposes only Compiled from publicly available sources Townsend Total 1. 2. 3. 4. 5. 1930 / 184 0 /0 0/0 1930 / 162 2260 / 164 BPA sales of 16 MW to PAC on Eastern Intertie 146 MW ATC as of Feb 2018; 246 MW ATC in Jan 2019 1818 MW w/RAS; 1618 MW w/o RAS BPA WOG “Others”: SNOPUD (50 MW, 5/48) , PPLM (100 MW, 7/20), PWRX (80 MW, 12/22) Termination dates: 663 MW Aug 2019, 94 MW Oct 2021