Intertie Options for Selected AVEC Villages Prepared by consultants and staff of Alaska Village Electric Cooperative August 2014 Intertie Report for Denali Commission Page | i Table of Contents Credits ..................................................................................................................................................... 1 Prologue .................................................................................................................................................. 2 Introduction ............................................................................................................................................ 3 Economies of Scale .............................................................................................................................. 5 What do Rural Alaska Interties Look Like? ............................................................................................ 6 Methods and Assumptions ...................................................................................................................... 7 Replacement ....................................................................................................................................... 7 Inflation ............................................................................................................................................... 8 N-1 Criteria .......................................................................................................................................... 9 AVEC Village Interties – Existing ............................................................................................................. 10 Shungnak-Kobuk ................................................................................................................................ 10 Intertie Route ................................................................................................................................ 10 Kasigluk-Nunapitchuk (and Old Kasigluk) ........................................................................................... 11 Intertie Route ................................................................................................................................ 12 Toksook Bay-Tununak-Nightmute ...................................................................................................... 13 Intertie Route ................................................................................................................................ 13 Wind Generation ........................................................................................................................... 14 Emmonak-Alakanuk ........................................................................................................................... 14 Brevig Mission-Teller ......................................................................................................................... 14 AVEC Village Interties – Proposed .......................................................................................................... 15 Emmonak-Alakanuk ........................................................................................................................... 16 Electric Loads and Generation ........................................................................................................ 17 Renewable Energy Options ............................................................................................................ 17 Intertie Route ................................................................................................................................ 18 Assumptions and Special Issues ..................................................................................................... 18 Economic Analysis ......................................................................................................................... 20 Saint Mary’s-Pilot Station .................................................................................................................. 22 Electric Loads and Generation ........................................................................................................ 22 Renewable Energy Options ............................................................................................................ 23 Alaska Village Electric Cooperative August 15, 2014 Intertie Report for Denali Commission Page | ii Intertie Route ................................................................................................................................ 24 Assumptions and Special Issues ..................................................................................................... 25 Economic Analysis ......................................................................................................................... 27 Saint Mary’s-Mountain Village ........................................................................................................... 29 Electric Loads and Generation ........................................................................................................ 29 Renewable Energy Options ............................................................................................................ 30 Intertie Route ................................................................................................................................ 31 Assumptions and Special Issues ..................................................................................................... 32 Economic Analysis ......................................................................................................................... 34 Togiak-Twin Hills ................................................................................................................................ 35 Electric Loads and Generation ........................................................................................................ 35 Renewable Energy Options ............................................................................................................ 36 Intertie Route ................................................................................................................................ 36 Assumptions and Special Issues ..................................................................................................... 38 Economic Analysis ......................................................................................................................... 39 New Stuyahok-Ekwok ........................................................................................................................ 40 Electric Loads and Generation ........................................................................................................ 40 Renewable Energy Options ............................................................................................................ 41 Intertie Route ................................................................................................................................ 41 Assumptions and Special Issues ..................................................................................................... 42 Economic Analysis ......................................................................................................................... 44 Stebbins-Saint Michael ...................................................................................................................... 45 Electric Loads and Generation ........................................................................................................ 45 Renewable Energy Options ............................................................................................................ 46 Intertie Route ................................................................................................................................ 46 Assumptions and Special Issues ..................................................................................................... 47 Economic Analysis ......................................................................................................................... 49 Brevig Mission-Teller ......................................................................................................................... 51 Electric Loads and Generation ........................................................................................................ 51 Renewable Energy Options ............................................................................................................ 52 Intertie Route ................................................................................................................................ 52 Assumptions and Special Issues ..................................................................................................... 53 Alaska Village Electric Cooperative August 15, 2014 Intertie Report for Denali Commission Page | iii Economic Analysis ......................................................................................................................... 54 Saint Mary’s-Mountain Village-Pilot Station ....................................................................................... 56 Electric Loads and Generation ........................................................................................................ 57 Renewable Energy Options ...........................................................................................................