A snapshot of Northwest power supply and electricity
demand.
For more information, contact John
Fazio.
Power Supply Outlook Update
Columbia River runoff volume forecast
|
|
Updated biweekly between December and July
|
| |
| Figures in million acre-feet |
Low |
Avg |
High |
| Current forecast (2012-02-06) | | 94 | |
| 30-year history (1971-2000) |
53 |
107 |
159 |
|
|
January to July runoff at the Dalles Dam is at 87% of the 30-year average from 1971-2000.
For more narrative information, see the
National
Weather Service Northwest River Forecast Center. For more data
including runoff history, see BPA
Hydrology.
|
Reservoir elevations and flows
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|
Updated daily
|
| |
|
|
|
Data for
February 7 |
Elevation
(ft) |
Normal Full
Pool (ft) |
Avg Feb 7 Elevation
for last 10 years (ft) |
| Hungry Horse |
3535.3 |
3561.0 |
3526.6 |
| Libby |
2409.9 |
2459.0 |
2404.3 |
| Grand Coulee |
1280.3 |
1290.0 |
1278.6 |
| Dworshak |
1524.2 |
1600.0 |
1530.2 |
| courtesy
of U of W's DART program |
|
|
The 1st table lists elevations for major U.S.
reservoirs.
The 2nd table lists river flow at key Lower Snake and Columbia
dams. |
Power flow in and out of the region
|
|
Updated daily
Current period: 09JAN12-07FEB12
|
| |
|
|
|
Intertie |
Avg power flow |
Direction |
| California (AC+DC) |
2371 mw |
export to California |
| Canada (BC) |
163 mw |
import from Canada |
| Total |
2208 mw |
export |
|
|
This shows how much average power has been imported
and exported in the last 30 days.
For more information, see
Bonneville's
intertie analyses (Excel)
|
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
