Current system
See: Generation for more details of the current generation systems
Atka (unnamed stream, site #4) -- Unnamed Creek 4
Present value of capital cost: $1,683,504
Lifetime energy cost savings: $924,400
Net lifetime savings: $-759,104
Benefit-cost ratio: 0.5
Proposed nameplate capacity: 31 kW
Expected yearly generation: 170,953 kWh/year
Phase: Reconnaissance
Upfront capital cost: $1,713,945
Estimated hydro penetration level: 33.31%
source: link
Atka (unnamed stream, site #3) -- Unnamed Creek 3
Present value of capital cost: $11,236,857
Lifetime energy cost savings: $95,055
Net lifetime savings: $-11,141,802
Benefit-cost ratio: 0.0
Proposed nameplate capacity: 700 kW
Expected yearly generation: 3,860,221 kWh/year
Phase: Reconnaissance
Upfront capital cost: $11,440,044
Estimated hydro penetration level: 752.21%
source: link
Atka (unnamed stream, site #2) -- Unnamed Creek 2
Present value of capital cost: $8,848,079
Lifetime energy cost savings: $1,366,736
Net lifetime savings: $-7,481,343
Benefit-cost ratio: 0.2
Proposed nameplate capacity: 940 kW
Expected yearly generation: 5,183,726 kWh/year
Phase: Reconnaissance
Upfront capital cost: $9,008,072
Estimated hydro penetration level: 1,010.11%
source: link
Atka (unnamed stream, site #1) -- Unnamed Creek 1
Present value of capital cost: $17,844,435
Lifetime energy cost savings: $-15,277
Net lifetime savings: $-17,859,712
Benefit-cost ratio: -0.0
Proposed nameplate capacity: 1,340 kW
Expected yearly generation: 7,389,567 kWh/year
Phase: Reconnaissance
Upfront capital cost: $18,167,102
Estimated hydro penetration level: 1,439.94%
source: link
Chuniisax creek (atka)
Present value of capital cost: $8,260,367
Lifetime energy cost savings: $-211,408
Net lifetime savings: $-8,471,775
Benefit-cost ratio: -0.0
Proposed nameplate capacity: 284 kW
Expected yearly generation: 1,566,147 kWh/year
Phase: Design
Upfront capital cost: $8,409,733
Estimated hydro penetration level: 305.18%
source: link