Question: What is the most common source of electricity in the state that encompasses Shellmouth Reservoir?

full_context: Document 1: Municipality of Shoal Lake: The Municipality of Shoal Lake is a former rural municipality (RM) in the Canadian province of Manitoba. It was originally incorporated as a rural municipality on January 1, 2011. It ceased on January 1, 2015 as a result of its provincially mandated amalgamation with the RM of Strathclair to form the Rural Municipality of Yellowhead.
Document 2: Keyhole State Park: The Keyhole Reservoir, an impoundment of the Belle Fourche River, was formed by the Keyhole Dam project of the United States Bureau of Reclamation, completed in 1952. The reservoir has a total capacity of 334,200 acre-feet and water surface of 13,700 acres, which provides storage for irrigation, flood control, fish and wildlife conservation, recreation, sediment control, and municipal and industrial water supply. Although located in Wyoming, the reservoir's waters are allocated by compact to go 90 percent to South Dakota and 10 percent to Wyoming.
Document 3: Manitoba Hydro: Manitoba Hydro is the electric power and natural gas utility in the province of Manitoba, Canada. Founded in 1961, it is a provincial Crown Corporation, governed by the Manitoba Hydro - Electric Board and the Manitoba Hydro Act. Today the company operates 15 interconnected generating stations. It has more than 527,000 electric power customers and more than 263,000 natural gas customers. Since most of the electrical energy is provided by hydroelectric power, the utility has low electricity rates. Stations in Northern Manitoba are connected by a HVDC system, the Nelson River Bipole, to customers in the south. The internal staff are members of the Canadian Union of Public Employees Local 998 while the outside workers are members of the International Brotherhood of Electrical Workers Local 2034.
Document 4: Tata Power: Tata Power Type Public Company Traded as NSE: TATAPOWER BSE: 500400 BSE SENSEX Constituent CNX Nifty Constituent Industry Electric utility Founded 1910; 107 years ago (1910) Founder Dorabji Tata Headquarters Mumbai, Maharashtra, India Key people S Padmanabhan (Chairman) Anil Sardana (CEO and MD) Atul Trivedi (President) Products Electrical power Natural gas Services Electricity generation and distribution natural gas exploration, production, transportation and distribution Revenue ₹36,461 crore (US $5.7 billion) (2016) Operating income ₹5,615 crore (US $880 million) (2016) Net income ₹873 crore (US $140 million) (2016) Number of employees 4,126 Parent Tata Group Subsidiaries Tata Power Renewable Energy Limited Website www.tatapower.com
Document 5: Hydroelectric power in the United States: Hydroelectric stations exist in at least 34 US states. The largest concentration of hydroelectric generation in the US is in the Columbia River basin, which in 2012 was the source of 44% of the nation's hydroelectricity. Hydroelectricity projects such as Hoover Dam, Grand Coulee Dam, and the Tennessee Valley Authority have become iconic large construction projects.
Document 6: Manitoba Hydro Place: Manitoba Hydro Place is the headquarters building of Manitoba Hydro, the electric power and natural gas utility in the province of Manitoba, Canada. Located at 360 Portage Avenue in downtown Winnipeg and connected to the Winnipeg Walkway system, Manitoba Hydro Place received LEED Platinum certification in May 2012, making it the most energy efficient office tower in North America and the only office tower in Canada to receive the LEED Platinum rating.
Document 7: Baseball Manitoba: Baseball Manitoba, or the "Manitoba Baseball Association", is the governing body for amateur baseball in the province of Manitoba, Canada. It was founded in 1968 and is the provincial branch of Baseball Canada. Its role is to promote the sport, encourage player development, and oversee all organized competition in Manitoba. It currently has approximately 14,000 members.
Document 8: Shellmouth Reservoir: The Shellmouth Reservoir (also known as Lake of the Prairies) is a man-made reservoir on the Assiniboine River in Manitoba and Saskatchewan, Canada.
Document 9: Ossokmanuan Lake: Ossokmanuan Lake is a reservoir lake in western Labrador, Newfoundland and Labrador, Canada. It was formed in the early 1960s by the Twin Falls hydroelectric plant. In 1976 it had a reported 2.8 x 109 m3 of active storage.
Document 10: Stadtwerke München: Stadtwerke München GmbH (Munich City Utilities) or SWM is a German communal company, owned by the city of Munich, which offers public services for the city and the region of Munich. The company supplies electricity for more than 95% of Munich's 750.000 households as well as natural gas, drinking water and, through its stake in the M-net Telekommunikations GmbH, telecommunications services. SWM is Europe's largest municipal utility company and ranks among Germany's principal energy providers according to company information. Expanding use of renewable energy has been a central element in the company's strategy since 2008. However, the company is also engaged in the industrialisation of the Norwegian wilderness through massive wind-turbines, which has created great opposition in Norway, among others in Sørmarka, Trøndelag.
Document 11: Sir Adam Beck Hydroelectric Generating Stations: Sir Adam Beck Hydroelectric Generating Stations are two hydroelectric generating stations in Niagara Falls, Ontario, Canada. Sir Adam Beck Generating Station I, Sir Adam Beck Generating Station II and the Sir Adam Beck Pump Generating Station are all owned by Ontario Power Generation. Following the development of several smaller generating stations around Niagara Falls in the late 19th and early 20th centuries, the Province of Ontario authorized the construction of first major publicly owned generating station in the province. At the time it was built, it was the largest hydroelectric generating station in the world.
Document 12: Pipmuacan Reservoir: The Pipmuacan Reservoir () is a man-made lake on the boundary of the Saguenay–Lac-Saint-Jean and Côte-Nord regions of Quebec, Canada, about north of Chicoutimi. It is used to control the flow for downstream hydro-electric generating stations on the Betsiamites River and, through Lake Pamouscachiou, also on the Shipshaw River. It has a total surface area of and a net area (water only) of .
Document 13: Gibson Reservoir: Gibson Reservoir is located just south of the Bob Marshall Wilderness in Montana. The reservoir is formed by the concrete arch Gibson Dam and backs water up between a hilly pass for about 3 miles. The water in the dam is initially provided by spring snow runoff and carried there via the North Fork Sun River and the South Fork Sun River right after the two join. The reservoir is mainly used for irrigation control.
Document 14: Electricity sector in Canada: In 2013, the leading type of power generation by utilities in Canada is hydroelectricity, with a share of 60.1%. Nuclear (15.8%), natural gas (10.3%), coal (10%), wind (1.8%), fuel oil (1.2%), biofuels and waste (0. 8%), wood (0.4%) and solar (0.1%) follow. Other sources, such as petroleum coke make up the remaining 0.5%.
Document 15: West Hawk Lake: West Hawk Lake is located in the Whiteshell Provincial Park in southeastern Manitoba, Western Canada. The central portion of the lake is formed by the West Hawk crater, caused by a meteor impact into an ancient rock bed composed of mostly granite. Granite cliffs surround parts of the lake. This area is also known as part of the Canadian Shield that was formed billions of years ago. Parts of the Whiteshell park have elaborate petroforms that were made by First Nation peoples, possibly over a thousand years ago. There are petroform shapes of turtles, snakes, humans and geometrical patterns, often found upon pink granite ridges that were shaped during the last ice age.
ground_truth: Manitoba Hydro
sub_queries: In which state is Shellmouth Reservoir located? Answer: Manitoba
what is the most common source of electricity in Manitoba Answer: Manitoba Hydro