A snapshot of Northwest power supply and electricity
demand.
For more information, contact John
Fazio.
Power Supply Outlook Update
February 2010 Summary: The likelihood of a significant power shortage over the next five years due to an inadequate supply continues to be minimal. Even if no resource or conservation acquisition actions were taken, the region's power supply will continue to adequately provide for both winter and summer needs. However, without any new resource development, summer reserves become dangerously low by 2015 and would fall below acceptable levels beyond that date.
However, the Council's recently adopted
Sixth Power Plan includes a 1,200 average megawatt conservation target for 2015, which, along with renewable resource acquisition activities currently going on, provide more than sufficient amounts of new resources to maintain an adequate supply.
It should be noted that the plan's resource strategy goes beyond simply meeting minimal adequacy requirements toward a goal of developing a cost-effective and risk-averse power supply. And, while actual resource development will vary depending on future conditions, implementation of the strategy should provide for an adequate supply for the Northwest throughout the next 20 years.
Columbia River runoff volume forecast
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Updated biweekly between January and July
Last updated 07-08-2010
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Reservoir elevations and flows
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Updated daily
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Data for
September 1 |
Elevation
(ft) |
Normal Full
Pool (ft) |
Avg Sep 1 Elevation
for last 10 years (ft) |
| Hungry Horse |
3547.9 |
3561.0 |
3542.9 |
| Libby |
2442.0 |
2459.0 |
2440.1 |
| Grand Coulee |
1277.0 |
1290.0 |
1279.1 |
| Dworshak |
1533.7 |
1600.0 |
1530.5 |
| courtesy
of U of W's DART program |
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The 1st table lists elevations for major U.S.
reservoirs.
The 2nd table lists river flow at key Lower Snake and Columbia
dams. |
New Northwest generating resources
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Updated quarterly
Last updated Feb 2009
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New resources either
recently online or coming online soon.
See how much Northwest power comes from hydropower
vs other sources.
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| Project |
Location |
Type |
Capacity (MW) |
Energy (MWa) |
Service Date |
Note |
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Under construction
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| Echo |
Morrow/Umatilla Co., OR |
Windpower |
65 |
|
July 2009 |
Est. energy |
| Pebble Springs |
Arlington, OR |
Windpower |
99 |
32 |
Q1 2009 |
Est. energy |
| Simpson Tacoma Cogen |
Tacoma, WA |
Wood residue steam cogen |
55 |
46 |
Aug 2009 |
Est. energy |
| Wheat Field |
Arlington, OR |
Windpower |
97 |
28 |
Jun 2009 |
Est. energy |
| Willow Creek |
Arlington, OR |
Windpower |
72 |
23 |
Feb 2009 |
Est. energy |
| Windy Point |
Goldendale, WA |
Windpower |
136 |
|
May 2008 |
Est. energy |
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Recently in-service
(last 12 months) |
Danskin CT1 |
Mountain Home, ID |
Natural gas simple cycle gas turbine |
170 |
As dispatched |
Jun 2008 |
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| Diamond Willow |
Fallon Co, MT |
Windpower |
20 |
6 |
Jun 2008 |
In MRO reliability area; Est. energy |
| Glacier Wind Energy |
Toole/Glacier Cty, MT |
Windpower |
107 |
34 |
Oct 2008 |
Est. energy |
| Goodnoe Hills |
Klickitat Co., WA |
Windpower |
94 |
30 |
Jun 2008 |
Est. energy |
| Grays Harbor |
Satsop, WA |
Natural gas combined-cycle gas turbine |
650 |
As dispatched |
Jul 2008 |
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| Hay Canyon |
Wasco, OR |
Windpower |
100 |
|
Dec 2008 |
Est. energy |
| Klondike III |
Wasco Co., OR |
Windpower |
221 |
71 |
Mar 2008 |
Est. energy |
| Klondike IIIA |
Wasco Co., OR |
Windpower |
77 |
25 |
Sept 2008 |
Est. energy |
| Marengo II (Dayton) |
Columbia Co., WA |
Natural gas combined-cycle gas turbine |
70 |
23 |
Jun 2008 |
Est. energy |
| Mint Farm |
Longview, WA |
Natural gas combined-cycle gas turbine |
319 |
As dispatched |
Jan 2008 |
Est. energy |
| Raft River |
Cassia Co. ID |
Geothermal |
16 |
12 |
Jan 2008 |
Est. energy |
| Rattlesnake Road |
Gilliam Co., OR |
Windpower |
103 |
33 |
Dec 2009 |
Est. energy |
More detail > (Jul 2010, 320k
Excel)
Power flow in and out of the region
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Updated daily
Current period: 03AUG10-01SEP10
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Intertie |
Avg power flow |
Direction |
| California (AC+DC) |
3060 mw |
export to California |
| Canada (BC) |
809 mw |
export to Canada |
| Total |
3869 mw |
export |
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This shows how much average power has been imported
and exported in the last 30 days.
For more information, see Bonneville's
intertie analyses
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Acronyms and glossary
DSI - Direct Service Industry, like aluminum processors
intertie - high-voltage transmission lines connecting the Northwest
to other regions
KCFS - thousand cubic feet per second
load - demand
MAF - million acre-feet
MW - megawatt
NMFS - National Marine Fisheries Service |
More Power Supply reports