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Lake Dorothy Project
National Hydropower AssociationJuneau, Alaska
March 2010
Blessing of Hydro
Renewable (I don’t care what some say, it really is)
Zero Carbon, Green Can be stored DISPATCHABLE!
Curse of Hydro(in isolated systems)
Quantized Have to pay for whole thing whether you
are using it or not Results in rate shock
Juneau Load Forecast
300,000
320,000
340,000
360,000
380,000
400,000
420,000
440,000
460,000
480,000
500,000
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022
MW
h
Hydro resource (50% chance)
Hydro resource (25% chance)
Hydro resource (25% chance)
area load
Projected Rev Req
Total Cost to Ratepayers
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
2003
2005
2007
2009
2011
2013
2015
2017
2019
2021
2023
2025
2027
2029
2031
2033
Year
Dol
lars
in T
hous
ands
Without Lake Dorothy
With Lake Dorothy
Projected Rev Req
Total Cost to Ratepayers
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
2003
2005
2007
2009
2011
2013
2015
2017
2019
2021
2023
2025
2027
2029
2031
2033
Year
Dol
lars
in T
hous
ands
Without Lake Dorothy
With Lake Dorothy
Projected Rev Req
Total Cost to Ratepayers
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
2003
2005
2007
2009
2011
2013
2015
2017
2019
2021
2023
2025
2027
2029
2031
2033
Year
Dol
lars
in T
hous
ands
Without Lake Dorothy
With Lake Dorothy
Juneau Area Energy
0
100
200
300
400
500
600
700
1970
19
73
1976
19
79
1982
19
85
1988
19
91
1994
19
97
2000
20
03
2006
20
09
2012
20
15
2018
20
21
2024
20
27
2030
20
33
2036
20
39
GW
h
Salmon, Annex, Gold Creeks
Snett Phase 1
Snett Phase 2
Dorothy Phase 1
Dorothy Phase 2
1.3% growth
Juneau Load Forecastwith Greens Creek
300,000
320,000
340,000
360,000
380,000
400,000
420,000
440,000
460,000
480,000
500,000
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022
MW
h
Hydro resource (50% chance)
Greens Creek
Hydro resource (25% chance)
Hydro resource (25% chance)
area load
Juneau Load Forecast
300,000
320,000
340,000
360,000
380,000
400,000
420,000
440,000
460,000
480,000
500,000
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022
MW
h
Hydro resource (50% chance)
Hydro resource (25% chance)
Hydro resource (25% chance)
area load
Juneau Load Forecastwith Greens Creek
300,000
320,000
340,000
360,000
380,000
400,000
420,000
440,000
460,000
480,000
500,000
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022
MW
h
Hydro resource (50% chance)
Greens Creek
Hydro resource (25% chance)
Hydro resource (25% chance)
area load
