Monthly Archives: August 2016

Shell Oil proposes hydro project near Bridgeport

imageby K.C. Mehaffey
Wenatchee World

Aug. 23, 2016

BRIDGEPORT — Shell Energy officials are in Bridgeport this week pitching a project to generate power from the Columbia River, without building a dam.

The proposed Hydro Battery Pearl Hill Project would pump water from the river to a reservoir 1,300 vertical feet above the Columbia when demand for electricity is low. It would then generate electricity when water flows back down to the river during peak hours, said Kimberly Windon, a Shell spokeswoman. The company expects to complete the up-and-down cycle about twice a day, she said.

The project would generate about five megawatts of renewable energy every day from a facility constructed about eight miles northeast of Bridgeport, drawing water from Rufus Woods Lake above Chief Joseph Dam.

“There would be a continuous flow up and down the hill, and as the water moves back down, it generates power for the local grid,” Windon said.

The preliminary proposal includes an above-ground reservoir built on state Department of Natural Resources land, a lower reservoir made of a framed floating membrane in Rufus Woods Lake, and a pipeline to transfer water between the reservoirs.

There would also be a barge on the lake where generation, pumping and substation equipment would be positioned, and a transmission line to feed power to nearby Douglas County PUD distribution lines. A road to the upper reservoir would also be built.

“The project is really exciting. It’s a different way of thinking in terms of being able to bring energy to the region,” Windon said.

Windon said the company is seeking input from individuals, government agencies and groups.

“We want to know what people are most interested in, and what they may have concerns about, and to just generally answer questions they may have,” she said.

Those responses will help the company formulate its official application to the Federal Energy Regulatory Commission, which can determine whether to issue a permit.

The company received a preliminary permit from the Federal Energy Regulatory Commission, a step prior to submitting an application. It is also floating the idea to others who may have input, like local governments, the Confederated Tribes of the Colville Reservation, and the state Department of Fish and Wildlife.

Windon described this phase as the early planning. She said once an application is submitted, Shell anticipates the regulatory phase of the project will take between a year and 18 months.

She said the project has the potential to help fill the gap between wind and solar power, generating electricity when other renewable energy sources are not producing electricity.

“The project would be a balance of supply and demand in the region,” she said.

She said the location northeast of Bridgeport is ideal because of the steep slopes right next to the river.

If the project is approved, she said, it will provide funds for local schools, as the company would lease land for the upper reservoir from DNR’s school trust lands.

Shell Energy is known for its oil production and exploration. The company also works in new energy sources including liquefied natural gas, biofuels, and wind power. Windon said she believes this would be Shell’s first hydro battery project.


Reach K.C. Mehaffey at 509-997-2512 or Read her blog An Apple a Day or follow her on Twitter at @KCMehaffeyWW.


Image provided Shell Energy North America is proposing a hydro battery project to generate electricity from the Columbia River water.

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A lot of dam potential: Renewables growth could drive massive hydro buildout

By Herman K. Trabish
Utility Dive

U.S. hydroelectric power, the nation’s oldest and biggest renewable, could see striking growth through 2050 – if developers work around its potential harms to river ecosystems and take advantage of expected growth in wind and solar.

Hydropower provided 6.2% of the nation’s electricity, 48% of all renewable electricity, and 97% of all energy storage in 2015, according to a new report, “Hydropower Vision: A New Chapter for America’s First Renewable Electricity Source,” from the U.S. Department of Energy (DOE).

That almost 101 GW of combined hydropower generating and storage installed capacity in 2015 could explode to nearly 150 GW in 2050, the report’s rigorous modeling found. But that will require technology innovations to drive the cost of project development and financing down and to solve environmental challenges.

“The growth potential for hydropower is real,” Jose Zayas, DOE’s Wind and Water Technologies Office Director, told Utility Dive.

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U.S. Department of Energy writes new chapter for hydropower vision

The U.S. Department of Energy has issued a far ranging evaluation of the future of hydropower in the United States. The backdrop of the report is continued national desires for low-cost, low-carbon, renewable energy.

The report finds that hydropower’s contribution to electrical supply could grow from 101 gigawattts (GW) of capacity to 150 GW by 2050. Such a jump is the equivalent of supplying enough new power to meet the needs of over 35 million homes. Along with this would be billions in savings from avoided greenhouse emissions. The report postulates that these gains could occur through technological evolution, low-cost financing and embracing environmental sustainability. Click here for report.

The Northwest, which relies on hydropower to generate well over half of its electricity, is already spending millions of dollars annually to upgrade and optimize generation and operational performance at hydropower projects. The Northwest is also familiar and continues to investigate efforts to install hydropower in irrigation canals and non-powered dams.

What would be new to the Northwest is the full embrace given by the report to deploying and integrating pumped storage technology into the mix. Currently, the Northwest has only one pumped storage project, the John Keys III Pump Generation Plant at Grand Coulee Dam.

The report concludes that 35.5 GW of new pumped storage could be developed nationally by combining advanced technology and low cost financing. This represents 73 percent of potential hydropower gains envisioned by the report. There are eight prospective pumped-storage projects in the Northwest.

Pumped storage projects take water passing through a project area and “pump” it to an additional reservoir during off-peak hours. Water is then released back through the turbines when the demand and value of power is highest. A key benefit of pumped storage is its ability to come on and off line quickly, thus making it an ideal way to support variable generation resources such as wind and solar.

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