Trystan Casey
Oregon is the third-largest renewable energy-producing state in the US, with hydropower dominating the power market and providing nearly two-thirds of the electricity generated in the state. Oregon also receives electricity from other states, including nuclear power from Washington, and has a diverse range of renewable energy sources, such as wind, solar, geothermal, and biomass. Oregon is part of the Western Interconnection, which links its electricity grid to California's, allowing for large interstate electricity transfers between the Pacific Northwest and the Southwest.
| Characteristics | Values |
|---|---|
| Does Oregon receive electricity from other states? | Yes, Oregon receives electricity from Washington state. |
| Does Oregon send electricity to other states? | Yes, Oregon has sent excess electricity to other states since 2007. |
| How does Oregon send electricity to other states? | Oregon's electricity grid is linked to California's grid via the Western Interconnection, one of North America's principal power grids. |
| What sources of renewable energy does Oregon use? | Hydropower, wind, solar, geothermal, biomass |
| What is the third-largest renewable energy-producing state in the US? | Oregon |
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What You'll Learn
Oregon's electricity exports to other states
Oregon's energy resources are diverse, with the state exporting and importing significant amounts of electricity. Since 2007, Oregon has exported electricity to other states through the Western Interconnection, one of North America's principal power grids. This grid connects Oregon's electricity grid to California's, facilitating large interstate electricity transfers between the Pacific Northwest and the Southwest. The Western Interconnection was initially designed to transmit inexpensive hydroelectricity to California but now occasionally reverses the flow to bring solar power to the Pacific Northwest.
Oregon's nuclear power, for example, is imported from the Columbia Generating Station in Washington State. The state also imports coal-generated electricity from neighbouring states. In addition, almost all the natural gas that enters Oregon continues on to California markets.
Oregon has also been increasing its solar generation, with a significant rise from 6,400 megawatt-hours in 2012 to over 1 million megawatt-hours in 2020. The state also has 54 operating wind turbine facilities with a total capacity of 4,203 MW as of 2020.
Oregon partnered with Washington, California, and British Columbia, Canada, to create the West Coast Electric Highway, a network of public charging stations for electric vehicles.
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Hydroelectric power and other renewable energy sources
Oregon has a diverse energy mix, with hydroelectric power being the most significant source. In 2023, hydroelectric power accounted for 42% of Oregon's total electricity generation, making the state the fourth-largest producer of hydroelectric power in the nation. The Columbia River, which forms the border between Oregon and Washington, is a crucial resource for the state's hydroelectric power generation. Large dams along the river produce most of the hydroelectric power in Oregon and the Pacific Northwest. The state's four largest power plants, John Day, The Dalles, Bonneville, and McNary, are all located on the Columbia River and are federally owned and operated.
Oregon's geography and climate also contribute to its hydroelectric power generation. High annual rainfall in the western part of the state, coupled with runoff from the snowpack in the mountains, enable substantial hydropower generation. The Cascade Mountains, with their high elevations, further enhance the state's hydropower potential.
In addition to hydroelectric power, Oregon has embraced other renewable energy sources. Natural gas-fired power plants provided 38% of the state's total net generation in 2023, although the state's only natural gas field no longer has significant reserves. Non-hydroelectric renewable resources, including wind, solar, biomass, and geothermal power, provide about 21% of the state's electricity.
Solar power has been increasingly integrated into Oregon's energy mix, with the state's first utility-scale solar facilities coming online in 2011. Since then, larger projects have been developed, and as of April 2023, a 162-megawatt solar photovoltaic (PV) facility is in operation. Oregon has also planned for almost 2,000 megawatts of additional solar PV capacity to come online between 2024 and 2027, including an 800-megawatt solar farm.
Biomass is another significant renewable energy source for Oregon, although it currently contributes less than 2% of the state's total net generation. Forests cover almost half of the state, providing ample wood and wood waste to fuel biomass generation. Additionally, landfill gas and municipal solid waste are utilized in biomass-fueled facilities. Geothermal energy, while accounting for less than 0.5% of Oregon's net generation, has significant potential in the state due to its active volcanic regions. Oregon has two geothermal power plants, with the larger one having a capacity of about 18 megawatts.
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Nuclear power imports from Washington state
Oregon has used less electricity than its power plants generate every year since 2007, with excess power exported to other states via the Western Interconnection power grid. However, there is no specific mention of Oregon importing nuclear power from other states, particularly from Washington state.
Oregon's only commercial nuclear power plant, the Trojan Nuclear Power Plant, was a pressurized water reactor located southeast of Rainier, Oregon. The plant faced strong public opposition from groups like the Trojan Decommissioning Alliance, with non-violent protests taking place as early as 1977. The plant was shut down in 1992 after cracks were discovered in its steam generator tubing, and it was eventually demolished in 2006.
Washington state, particularly the Washington Public Power Supply System (WPPSS), has planned and started constructing several nuclear power plants to meet the projected electricity demand in the Pacific Northwest. These include the Washington Nuclear Projects Nos. 1 through 5 (WNP-1 to WNP-5), with WNP-2 being the only unit completed and operational. WNP-3 and WNP-5, collectively known as the Satsop Nuclear Power Plant, were located near Elma in Grays Harbor County, Washington. However, construction delays, cost overruns, and voter initiatives led to the termination of these projects, and none of the original five proposed nuclear units are currently operational.
While there is no direct evidence of Oregon importing nuclear power from Washington state, the proximity and interconnected power grids between the two states suggest that Oregon could potentially benefit from any nuclear power generated in Washington. However, with the termination of the WPPSS nuclear projects in Washington, the likelihood of Oregon importing nuclear power from its neighboring state has diminished.
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Geothermal energy and biomass generation
Oregon has been generating more electricity than its residents consume since 2007, with the excess being sent to other states via the Western Interconnection power grid. This grid covers a large area in North America, stretching from western Canada to Mexico and from the Pacific Ocean to the Great Plains.
Despite this, Oregon is still exploring renewable energy sources such as geothermal energy and biomass generation.
Geothermal Energy
Geothermal energy accounts for less than 0.5% of Oregon's net generation, but the state has some of the best geothermal resources in the country. Oregon's Cascade Mountains are an active volcanic region with an estimated 2,200 megawatts of electricity-generating potential. The state has two geothermal power plants, but only one is operational. This larger plant was built in 2012 and has about 18 megawatts of capacity. Oregon residents have also been using low-to-moderate temperature geothermal resources for over a century for direct heat applications.
Energy Trust of Oregon provides incentives to encourage the development of geothermal projects, offering funding contributions in return for a share of the project's Environmental Attributes.
Biomass Generation
Biomass, which includes wood and wood waste, landfill gas, and municipal solid waste, generates most of Oregon's remaining renewable-sourced electricity. As of 2021, there are sixteen biomass power plants in Oregon, fifteen of which use wood or wood waste products as fuel. This is due to Oregon being the largest lumber producer in the United States and having about 50% of its landmass covered in forest.
Biomass electricity-generating facilities burn organic fuel to heat water, creating steam that runs a turbine to produce electricity. While biomass has not become a major source of renewable electricity in Oregon, it is still a viable option for some large industrial facilities and commercial facilities such as schools and hospitals. Additionally, about 1 in 22 Oregon households heat with wood.
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Energy efficiency and cost-effectiveness
Oregon is the third-largest renewable energy-producing state in the US. The state's electricity comes from a mix of hydropower, coal, natural gas, nuclear power, and renewable resources such as wind, solar, geothermal, and biomass. While Oregon generates more electricity than it uses, it still imports electricity from other states.
Energy efficiency plays a crucial role in Oregon's energy landscape. By reducing the amount of energy generation needed, energy efficiency measures help to avoid investments in additional generation, transmission, and distribution infrastructure. This, in turn, keeps overall energy costs lower for consumers. Energy Trust, an organization serving utility customers in Oregon, offers energy-saving solutions and invests in cost-effective energy efficiency projects in homes and businesses. These efforts contribute to Oregon's goal of meeting its 50% Renewable Portfolio Standard by 2040.
Oregon's hydropower resources dominate the power market, providing nearly two-thirds of the electricity generated in the state. However, when electricity imported from other states is considered, hydropower's share of total consumption decreases to 38.91%. Natural gas, the second-largest source of energy consumption in Oregon, accounts for one-third of the state's net power generation due to recent reserve discoveries and persistent extraction in the Mist Field in northwest Oregon.
Geothermal energy, while accounting for less than 0.5% of Oregon's net generation, holds significant potential for the state. Ranked third in the nation for geothermal resources, Oregon has an estimated 2,200 megawatts of electricity-generating capacity from its Cascade Mountains and other high-temperature geothermal areas. The state currently has two geothermal power plants, with only one operational, contributing to utility-scale electricity generation from geothermal sources.
Biomass, primarily wood and wood waste, generates most of Oregon's remaining renewable-sourced electricity. Forests cover almost half of the state, and many industrial facilities in western Oregon use woody biomass for electricity generation. Additionally, biomass is used for thermal energy, with some commercial facilities, including schools and hospitals, utilizing wood for space heating.
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Frequently asked questions
Yes, Oregon does receive electricity from other states. While most of the state's electricity comes from hydropower, coal, and natural gas, Oregon also gets electricity from nuclear power produced in Washington state.
Oregon is the third-largest renewable energy-producing state in the US. Hydroelectric power dominates the power market in Oregon, providing nearly two-thirds of the electricity generated in the state. Oregon also gets electricity from wind, solar, geothermal, and biomass.
Yes, in every year since 2007, Oregonians have used less electricity than the state's power plants have generated, and the excess power has gone to other states via the Western Interconnection.
