The massive Grand Coulee dam, whose controllable reservoir
capability contributes to the uncertainty in regional hydro
generation, can generate nearly 6,500 MW of power annually.
HyMet Inc.
Forecasting Services
Streamflow Forecasting Service
Generation Forecasting Service
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Seasonal runoff forecasts for the Columbia River at Grand Coulee
Dam, The Dalles, Lower Granite Dam on the Snake River and Albeni
Falls Dam on the Pend Oreille are available and will be sent on a
weekly schedule beginning in December. HyMet forecasts have proven
to be as accurate and more informative than alternative forecasting
methods.
Streamflow Forecasting Service
The HyMet Stream flow Forecasting service has been providing
reliable forecasts of seasonal inflow of the Columbia River for
eight years for distribution to public and private utilities, energy
traders and investment banks. These forecasts are distributed by
email on a weekly schedule from early December to mid- September.
The HyMet forecasting model uses daily observations of
precipitation, temperature and runoff to produce these forecasts.
Our Combined Columbia Weekly Forecasts at Grand Coulee, The Dalles
and Lower Granite Dams contain detailed charts and tables of
forecast hydrograph and basin water storage, which includes snowpack
and groundwater storage. Basin water storage is distributed
according to altitude to improve the accuracy and timing of the
forecasts.
The Columbia River is the largest hydropower producing basin in
Western North America. The 55 hydroelectric dams on its main stem
and tributaries have the capacity to generate 36,700 MW annually. It
is also a major supplier of irrigation water for Washington, Montana
and Idaho farmlands, and is the home for several species of
anadromous fish.
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HyMet is also
providing weekly forecasts of hydroelectric energy generation
produced at the thirteen hydro projects operated by Federal Agencies
in the Columbia Basin.
Generation Forecasting Service
Provided by HyMet Inc. using the Flogen Model
RELIABLE FORECASTS OF POWER GENERATED BY FEDERAL HYDRO PROJECTS
The
thirteen federally owned and operated hydroelectric projects on
the Columbia River produce an average of 8700 MW of energy
annually. The energy production can vary greatly as the system
operation responds to changing hydrology, non-Power
requirements, electricity demands and energy market values.
Our Forecasting Service provides accurate, up –to-date
projections of the hydroelectric energy from these projects in
the days, weeks and months ahead.
ACCURACY: AVERAGE ABSOLUTE ERROR FOR ONE WEEK FORECAST DURING
THE 2008 SEASON WAS 15%
- WEEKLY AND MONTHLYFORECASTS THROUGH THE END OF WATER YEAR
- STATISTICAL CONFIDENCE LIMITS, HISTORICAL ERROR RECORD
- R-SQUARED PROVIDED WITH EACH FORECAST
- FORECASTS AVAILABLE FOR 1 TO 300 DAYS IN ADVANCE WITHIN A WATER YEAR
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To request more information, please see our
Contact page.
To subscribe, download and submit the
Forecasting Service Agreement.