Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current (DC), which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans and electric lamps into a wall socket. The abbreviations AC and DC are often used to mean simply alternating and direct, respectively, as when they modify current or voltage.
Telluride is the county seat and most populous town of San Miguel County in the southwestern portion of the U.S. state of Colorado. The town is a former silver mining camp on the San Miguel River in the western San Juan Mountains. The first gold mining claim was made in the mountains above Telluride in 1875, and early settlement of what is now Telluride followed. The town was founded in 1878.
Ophir is a home rule municipality town governed by a general assembly and is located in San Miguel County, Colorado, United States. It is located two miles from the Ames Hydroelectric Generating Plant, the world's first hydroelectric plant to supply alternating current electricity for an industrial purpose (mining). The population was 197 at the 2020 census.
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.
The St. Marys River, sometimes written St. Mary's River, drains Lake Superior, starting at the end of Whitefish Bay and flowing 74.5 miles (119.9 km) southeast into Lake Huron, with a fall of 23 feet (7.0 m). For its entire length it is an international border, separating Michigan in the United States from Ontario, Canada.
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower. Hydropower supplies one sixth of the world's electricity, almost 4,500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. However, when constructed in lowland rainforest areas, where part of the forest is inundated, substantial amounts of greenhouse gases may be emitted.
Davis Dam is a dam on the Colorado River about 70 miles (110 km) downstream from Hoover Dam. It stretches across the border between Arizona and Nevada. Originally called Bullhead Dam, Davis Dam was renamed after Arthur Powell Davis, who was the director of the U.S. Bureau of Reclamation from 1914 to 1923. The United States Bureau of Reclamation owns and operates the dam, which was completed in 1951.
Xcel Energy Inc. is a U.S. regulated electric utility and natural gas delivery company based in Minneapolis, Minnesota, serving more than 3.7 million electric customers and 2.1 million natural gas customers across parts of eight states. It consists of four operating subsidiaries: Northern States Power-Minnesota, Northern States Power-Wisconsin, Public Service Company of Colorado, and Southwestern Public Service Co.
The Cerros Colorados Complex is a group of dams and hydroelectricity generation facilities on the lower valley of the Neuquén River, in Neuquén, Argentina.
Gökçekaya Dam is 43 km (27 mi) north of Alpu town 45 km (28 mi) east of province of Eskişehir in central Turkey and located 60 km (37 mi) downstream of Sarıyar Dam on the Sakarya River which runs into the Black Sea. The Yenice Dam is located downstream.
The Ames Hydroelectric Generating Plant, constructed in 1890 near Ophir, Colorado, was one of the first commercial system to produce and transmit alternating current (AC) electricity for industrial use and one of the first AC hydro-electric plants ever constructed. It became operational in 1891 and was built by Westinghouse Electric around two of their large alternators. One was set up in the valley as a generator and driven by water. It was connected by a 2.6-mile (4.2 km) transmission line to the second alternator used as a motor up at the Gold King Mine to drive the mining operation. The facility has been changed and upgraded over the years but is still in operation. It is now on the List of IEEE Milestones.
Bridal Veil Falls is a 365-foot waterfall at the end of the box canyon overlooking Telluride, Colorado. Hiking and off-road trails pass by the falls and it has a hydroelectric power plant at its top. In winter the frozen shape of the falls forms an imposing challenge to intrepid ice climbers.
Brazeau Reservoir is a large man-made reservoir in Alberta, Canada. It is located in Brazeau County of central Alberta, 55 kilometres (34 mi) southwest of Drayton Valley. It was developed along the Brazeau River, at the confluence with Elk River, in the hydrographic basin of the North Saskatchewan River.
Hydroelectricity is, as of 2019, the second-largest renewable source of energy in both generation and nominal capacity in the United States. In 2021, hydroelectric power produced 31.5% of the total renewable electricity, and 6.3% of the total U.S. electricity.
The Smuggler-Union Hydroelectric Powerplant, also known as the Bridal Veil Powerhouse, is an electric power generation plant and residence located next to Bridal Veil Falls on a 400-foot (120 m) cliff overlooking Telluride, Colorado. The structure is 2+1⁄2 stories on a poured concrete foundation with a wood frame superstructure. It consists of a main power plant building, a 1+1⁄2-story residence and a 1-story cookhouse. The power plant foundation is distinctive, with semicircular windows. A semicircular bay with arched windows projects out on a rock spur.
Single-phase generator is an alternating current electrical generator that produces a single, continuously alternating voltage. Single-phase generators can be used to generate power in single-phase electric power systems. However, polyphase generators are generally used to deliver power in three-phase distribution system and the current is converted to single-phase near the single-phase loads instead. Therefore, single-phase generators are found in applications that are most often used when the loads being driven are relatively light, and not connected to a three-phase distribution, for instance, portable engine-generators. Larger single-phase generators are also used in special applications such as single-phase traction power for railway electrification systems.
Ruxton Park is a park in Manitou Springs, El Paso County, Colorado at 9,078 feet (2,767 m) in elevation. The Manitou and Pike's Peak Railway, which departs from the depot at 6,570 feet (2,000 m) in elevation, climbs into Englemann Canyon along Ruxton Creek. It passes by the site of the Halfway Hotel and then Ruxton Park at mile marker 3 on the 8.9 mile trip to Pikes Peak summit.
Ruxton Creek is a stream in Manitou Springs in El Paso County, Colorado. Named for British explorer and writer of the southwest, George Fredrick Augustus Ruxton, it is one of three main drainage basins in Manitou Springs. Ruxton Creek flows out of Englemann Canyon and into the town of Manitou Springs. Iron Springs geyser emanates from the creek and is one of the Manitou Mineral Springs.
Trout Lake is a lake located in southeast San Miguel County, Colorado, in Uncompahgre National Forest. Trout Lake is a 15-minute drive from Ophir via Colorado State Highway 145 and a 20-minute drive from Telluride.
United States 
Colorado 
