OPALCO is contracted with Bonneville Power Administration (BPA) to secure the lowest cost, most reliable power for our member owners. Each year, BPA reports on the fuel mix—the various sources of electrical generation—that were delivered to us for distribution. The 2011 fuel mix report shows that our fuel mix was 97% greenhouse-gas free with more than 90% of our power being generated by clean and green hydro-electric turbines. Greenhouse gases are those that absorb and emit radiation within the thermal infrared range. The process is the fundamental cause of the greenhouse effect, which contributes to global warming.
The components of the fuel mix vary from year (see this year’s detailed report) due to the availability of wind power and Columbia Generating Station (nuclear energy), which shuts down every two years for refueling and routine maintenance. Additionally, from time to time BPA requests Columbia Generating Station reduce power due to current or expected high water levels in the federal hydroelectric system.
The other components of the fuel mix represent less than 3% of the total generation and include (in order of prevalence): coal, natural gas, biomass, waste, petroleum, landfill gases, solar, co-generation, geo-thermal and other.
What about all the member-owned renewable energy (MORE) generated locally by OPALCO members? There are more than 80 members who generate their own power and are interconnected to OPALCO’s grid. The total kWh annual production is over 200,000 kWh compared to the total co-op annual consumption of about 200,000,000 kWh. However, with the promise of higher rates tied to load growth in the near future, everything we can do as a co-op to reduce our load—every kWh we can avoid using through efficiency and conservation or that we generate ourselves—will help us to shape our own energy future.
What will you do to be more efficient and avoid kWh use in your home or business?