Industry | Utility |
---|---|
Founded | 1935 |
Headquarters | Tulsa, Oklahoma , USA |
Area served | Oklahoma and 3 other states |
Key people | Dan Sullivan, President/CEO |
Products | Electric power and water |
Revenue | US$412 million (2012) |
Number of employees | 500 (approx.) |
Website | https://www.grda.com |
The Grand River Dam Authority (GRDA) is an agency of the state of Oklahoma created to control, develop, and maintain the Grand River waterway. It was created by the Oklahoma state legislature in 1935, and is headquartered in Tulsa, Oklahoma. GRDA was designed to be self-funding from the sales of electricity and water. The state of Oklahoma was to provide no funding from taxes. The Authority was authorized to issue revenue bonds to fund large-scale capital investments.
According to GRDA's 2012 Annual Report, the agency had nearly US $412 million in operating revenue for 2012, compared to nearly US $395.5 million in 2011. [1]
It operates three hydroelectric facilities and two reservoirs, Grand Lake, Lake Hudson, and the Salina Pumped Storage Project, which includes W. R. Holway Reservoir, It also owns and operates the GRDA Energy Center (formerly named the GRDA Coal-Fired Complex). The Energy Control Center, home of the GRDA's System Operations Center, is at the Robert S. Kerr Dam, just north of Locust Grove, Oklahoma. In July 2016, it absorbed the mission of the Oklahoma Scenic Rivers Commission to manage, preserve and protect the waters of the scenic Illinois River. Its joint ventures include the Canadian Hills wind farm. GRDA's jurisdiction covers 24 counties in northeastern Oklahoma. [2]
The Encyclopedia of Oklahoma History and Culture credits Henry Holderman, a member of the Cherokee tribe, as first envisioning Grand River as a source for hydroelectric power for the Cherokee Nation. Even prior to Oklahoma statehood in 1907, Holderman began building political support for such a project. A feasibility study by the Army Corps of Engineers attracted favorable attention in the Oklahoma legislature, leading to creation of the Grand River Dam Authority (GRDA), a state agency, in 1935. Construction began in 1938 on the Pensacola Dam on the Grand River (lower Neosho River) as a Works Progress Administration project. The dam was completed in March 1940, creating the lake behind it. Between 1941 and 1946, the U.S. government took control of Pensacola Dam to divert power to the war effort. Control was returned to the GRDA by the Congress and President Truman amid local celebration in August 1946. [2]
The second hydroelectric facility built by GRDA was the Markham Ferry project. In 1961, the Markham Ferry dam (since renamed as the Robert S. Kerr Dam) was begun downstream of Pensacola Dam on the Grand River. The lake it impounded was named Lake Hudson. The project was completed in 1964. [3] The powerhouse has four hydroelectric turbines, providing a total capacity of 114,000 kW. GRDA states that an average year can provide 211 million kWh.
The Salina Pumped Storage Project constructed for GRDA during 1968 - 1971, created Lake W. R. Holway. It was designed to produce 260 MW of power during peak consumption periods. During periods of lower power demand, water is pumped from Lake Hudson to Lake Holway and released back down through the pump-generators during periods of high energy demand. [4]
In the late 1970s, the Authority decided to build the GRDA Coal-fired Power Generation Complex, located near Chouteau, Oklahoma. Now more than four decades old, the two units need extensive retrofits to meet new emission regulations and to improve energy efficiency with more modern technologies.
In 2008, GRDA, Oklahoma Gas & Electric (OG&E) and Oklahoma Municipal Power Authority (OMPA) jointly purchased the Redbud Generation facility near Luther, Oklahoma for 434.5 million. The facility uses natural-gas fueled turbines to generate electricity. Rated capacity was 1230 MW. GRDA owns 36 percent of the venture, while OG&E owns 51 percent and is designated as the operator. OMPA owns the balance. [5]
In 2010, GRDA completed a new visitors' center adjacent to Pensacola Dam. The building was designed to be the home of GRDA Ecosystems Management offices, a state-of-the-art water research lab, offices for the Grand Lake Area Chamber of Commerce, a community auditorium and historical exhibits. [6]
On June 13, 2012, GRDA approved becoming a member of the Large Public Power Council (LPPC). The LPPC consists of the largest publicly owned not-for-profit, electric utilities in the U.S. LPPC’s priorities include tax and finance issues, interaction with the Federal Energy Regulatory Commission, energy and environmental policies. [7]
Governor Mary Fallin (R) issued an executive order in July 2013 to establish a 15-member task force that would research the possibility of dismantling GRDA and selling its assets. The members chosen by the governor have “experience or interest in energy issues.” It would include two members of her “Bold Ideas” task force. [8]
Governor Fallin announced on August 13, 2013, that she was suspending the task force and its work indefinitely. [9] She said that she still supported the mission of the task force, she realized that the timing was bad and that the review could undermine GRDA's efforts to sell revenue bonds. [10]
GRDA has a financial interest in a wind turbine "farm" near El Reno, Oklahoma developed by Apex Wind Energy Holdings LLC and Atlantic Power Corp. Known as the Canadian Hills wind farm, it will sell power to GRDA, the Oklahoma Municipal Power Authority and Southwestern Electric Power Co., a Louisiana-based unit of American Electric Power. The facility initially had 135 turbines and a design output of 300 megawatts of electric power. Google, Inc. contracted with GRDA to buy up to 48 megawatts of this power for its data center in Pryor, Oklahoma. [11]
On January 14, 2014, the GRDA Board of Directors approved purchase and installation of gas turbine generators to be installed at the GRDA Coal-Fired Complex in Chouteau. The new unit, which is known as Unit 3, is estimated to cost US$372 million, is designed to produce 495 megawatts (MW) of electric power. The turbine-generators alone will cost US$77.84 million. [12] Mitsubishi Power Systems is supplying M501J gas turbines and SRT-50 steam turbines for the new unit. [13]
Concurrently, the Authority renamed the Chouteau complex as the Grand River Energy Center. [14]
The new combined cycle generation process is energy-efficient because natural gas fuels a gas turbine that directly generates power. Then the hot turbine exhaust gas is cooled by boiling water to generate more steam, which drives a steam-powered generator and generates more electric power. The new generation unit was expected to be put in service in 2017, [14] and has since been brought on-line. [15]
As of January 2024
Standard & Poor's (S&P) Rating Services upgraded GRDA's credit rating in 2007 from "BBB+" to "A−", and improved the outlook from "stable" to "positive". While GRDA has received three rating outlook improvement from rating agencies in recent years, S&P's announcement was historic, marking the first rating upgrade in GRDA's history. [17] The Fitch Rating Service followed suit in 2008. The A− rating was still in effect at the end of 2012, meaning that GRDA has very favorable terms for borrowing money.
According to GRDA's 2012 Annual Report, the agency had nearly US $412 million in operating revenue for 2012, compared to nearly US $395.5 million in 2011. [18]
GRDA, as of Fiscal Year 2009, had an annual operating budget of $314 million and employed 450 employees (390 classified and 60 unclassified).
Mayes County is a county located in the U.S. state of Oklahoma. As of the 2020 census, the population was 39,046. Its county seat is Pryor Creek. Named for Samuel Houston Mayes, Principal Chief of the Cherokee Nation from 1895 to 1899, it was originally created at the Sequoyah Convention in August 1905.
A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid.
Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. A PHS system stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power.
Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerhouses. The third powerhouse ("Nat"), completed in 1974 to increase energy production, makes Grand Coulee the largest power station in the United States by nameplate capacity at 6,809 MW.
Konawa Reservoir is a reservoir located in Seminole County, Oklahoma. The lake covers approximately 1,350 acres (5.5 km2) and has a capacity of 23,000 acre-feet (28,000,000 m3). It is owned by Oklahoma Gas and Electric (OG&E) Company. and was constructed in 1968-70, to provide cooling for a nearby gas-fired electric power generation plant. It impounds Jumper Creek, about 2 miles (3.2 km) east of the city of Konawa, Oklahoma.
The Wivenhoe Power Station is situated between the Splityard Creek Dam and Lake Wivenhoe. The Splityard Creek Dam is located in hills adjacent to Lake Wivenhoe and is about 100 metres (330 ft) above it. The power station is the only pumped storage hydroelectric plant in Queensland.
Peaking power plants, also known as peaker plants, and occasionally just "peakers", are power plants that generally run only when there is a high demand, known as peak demand, for electricity. Because they supply power only occasionally, the power supplied commands a much higher price per kilowatt hour than base load power. Peak load power plants are dispatched in combination with base load power plants, which supply a dependable and consistent amount of electricity, to meet the minimum demand.
Grand Lake o' the Cherokees is situated in Northeast Oklahoma in the foothills of the Ozark Mountain Range. It is often simply called Grand Lake. It is administered by the Grand River Dam Authority (GRDA).
The Neosho River is a tributary of the Arkansas River in eastern Kansas and northeastern Oklahoma in the United States. Its tributaries also drain portions of Missouri and Arkansas. The river is about 463 miles (745 km) long. Via the Arkansas, it is part of the Mississippi River watershed. Its name is an Osage word meaning "clear water." The lower section is also known as the Grand River.
The Shoalhaven Scheme is a dual-purpose water supply and Pumped-storage Hydroelectricity scheme located on the South Coast region of New South Wales, Australia.
The Oklahoma Water Resources Board (OWRB) is an agency in the government of Oklahoma under the Governor of Oklahoma. OWRB is responsible for managing and protection the water resources of Oklahoma as well as for planning for the state's long-range water needs. The Board is composed of nine members appointed by the Governor with the consent of the Oklahoma Senate. The Board, in turn, appoints an Executive Director to administer the agency.
Hiwassee Dam is a hydroelectric dam on the Hiwassee River in Cherokee County, in the U.S. state of North Carolina. It is one of three dams on the river owned and operated by the Tennessee Valley Authority, which built the dam in the late 1930s to bring flood control and electricity to the region. The dam impounds the Hiwassee Lake of 6,000 acres (2,400 ha), and its tailwaters are part of Apalachia Reservoir. At 307 feet (94 m), Hiwassee Dam is the highest overspill dam east of the Mississippi River and is second only to Grand Coulee dam in the nation. At the time it was completed, it was the highest overspill dam in the world.
William Rea Holway, commonly known as W. R. Holway, was an American civil engineer who became prominent in Oklahoma. He is best known for his work on major water supply projects for the city of Tulsa, and on the Pensacola Dam at Grand Lake o' the Cherokees.
The Pensacola Dam, also known as the Grand River Dam, is a multiple-arch buttress dam located between the towns of Disney and Langley on the Grand River in Mayes County, Oklahoma. The dam is operated by the Grand River Dam Authority and creates Grand Lake o' the Cherokees. After decades of vision and planning, it was constructed between 1938 and 1940 for the purposes of hydroelectric power generation, flood control and recreation. It is Oklahoma's first hydroelectric power plant and is referred to as the longest multiple-arch dam in the world.
Lake Hudson, also known as Markham Ferry Reservoir, is a man-made reservoir in Mayes County, Oklahoma, United States, about 2 miles (3.2 km) northwest of Locust Grove, Oklahoma and 8 miles (13 km) southeast of Pryor, Oklahoma. It was created by the completion of the Robert S. Kerr Dam on the Grand River in 1964. It is managed by the Grand River Dam Authority (GRDA).
The Salina Pumped Storage Project is a 260-megawatt (350,000 hp) pumped-storage power station near Salina, Oklahoma. It is owned and operated by the Grand River Dam Authority (GRDA). Its construction was in response to growing power demands and a lack of dam sites on the Grand River. The first phase was completed in 1968 and the second in 1971. The upper reservoir for the power station is Lake W. R. Holway which was built on Saline Creek and the lower reservoir is Lake Hudson on the Grand River. During periods of lower power demand, water is pumped from Lake Hudson to Lake Holway and released back down through the pump-generators during periods of high energy demand.
Lake W. R. Holway, or Chimney Rock Lake is a reservoir in Mayes County, Oklahoma on the Saline Creek arm of Lake Hudson (Oklahoma). It was created in 1968 by the Grand River Dam Authority (GRDA) as an integral part of the Salina Pumped Storage Project. It is northeast of Locust Grove and southeast of Salina, Oklahoma. Originally named Chimney Rock Lake, it was renamed in 1981 to honor W. R. Holway, the consulting engineer who was responsible for constructing the Spavinaw Water Project, Pensacola Dam, and other important projects. Its primary purpose is peak power generation.
The Helms Pumped Storage Plant is located 50 mi (80 km) east of Fresno, California in the Sierra Nevada Mountain Range's Sierra National Forest. It is a power station that uses Helms Creek canyon on the North Fork of the Kings River for off-river water storage and the pumped-storage hydroelectric method to generate electricity. After being planned in the early 1970s, construction on the plant began in June 1977 and commercial operations began on 30 June 1984. It has an installed capacity of 1,212 MW and is owned by Pacific Gas and Electric Company.
Kevin Easley is an American oil and gas executive who was a leading legislator in the Oklahoma House of Representatives and the Oklahoma Senate for 18 years and the top executive at the Grand River Dam Authority for seven years in the U.S. State of Oklahoma. He is the President and Chief Executive Officer of New Dominion, LLC, in Tulsa, Oklahoma.