Geothermal energy is thermal energy in the Earth's crust. It combines energy from the formation of the planet and from radioactive decay. Geothermal energy has been exploited as a source of heat and/or electric power for millennia.
Mount Apo, also known locally as Apo Sandawa, is a large solfataric, dormant stratovolcano on the island of Mindanao, Philippines. With an elevation of 3,142.79 meters (10,311.0 ft) above sea level, it is the highest-mountain in the Philippine Archipelago, Mindanao and 24th-highest peak of an island on Earth. Located on the tripartite border of Davao City and Davao del Sur in the Davao Region, and Cotabato in Soccsksargen, Mount Apo is the most-prominent mountain in the Philippines. The peak overlooks from Davao City 45 kilometers (28 mi) to the northeast, Digos 25 kilometers (16 mi) to the southeast, and Kidapawan 20 kilometers (12 mi) to the west. It is a protected area and a Natural Park of the Philippines.
Kidapawan, officially the City of Kidapawan, is a 3rd class component city and capital of the province of Cotabato, Philippines. According to the 2020 Census, it has a population of 160,791 people.
Iceland is a world leader in renewable energy. 100% of Iceland's electricity grid is produced from renewable resources. In terms of total energy supply, 85% of the total primary energy supply in Iceland is derived from domestically produced renewable energy sources. Geothermal energy provided about 65% of primary energy in 2016, the share of hydropower was 20%, and the share of fossil fuels was 15%.
Geothermal energy was first used for electric power production in the United States in 1960. The Geysers in Sonoma and Lake counties, California was developed into the largest geothermal steam electrical plant in the world, at 1,517 megawatts. Other geothermal steam fields operate in the western US and Alaska.
The Kawerau Power Station is a 100-megawatt geothermal power plant located just outside the town of Kawerau in the Bay of Plenty Region of New Zealand. The power station is situated within the Kawerau geothermal field, which is part of the Taupo Volcanic Zone. Completed in July 2008 by Mighty River Power at a cost of NZ$300 million, the plant's capacity proved greater than expected. The station is the largest single generator geothermal plant in New Zealand.
The Geysers is the world's largest geothermal field, containing a complex of 18 geothermal power plants, drawing steam from more than 350 wells, located in the Mayacamas Mountains approximately 72 miles (116 km) north of San Francisco, California.
Geothermal power is electrical power generated from geothermal energy. Technologies in use include dry steam power stations, flash steam power stations and binary cycle power stations. Geothermal electricity generation is currently used in 26 countries, while geothermal heating is in use in 70 countries.
Geothermal power in New Zealand is a small but significant part of the energy generation capacity of the country, providing approximately 17% of the country's electricity with installed capacity of over 900MW. New Zealand, like only a small number of other countries worldwide, has numerous geothermal sites that could be developed for exploitation, and also boasts some of the earliest large-scale use of geothermal energy in the world.
The Te Mihi Power Station is a 166 MW geothermal power station owned and operated by Contact Energy, located north of Taupō in New Zealand.
The Wairakei Power Station is a geothermal power station near the Wairakei Geothermal Field in New Zealand. Wairakei lies in the Taupō Volcanic Zone.
The Poihipi Power Station is a geothermal power station owned and operated by Contact Energy. It is located on Poihipi Road near Taupō in New Zealand.
Geothermal power is very cost-effective in the Great Rift Valley of Kenya, East Africa. As of 2023, Kenya has 891.8 MW of installed geothermal capacity. Kenya was the first African country to build geothermal energy sources. The Kenya Electricity Generating Company, which is 74% state-owned, has built several plants to exploit the Olkaria geothermal resource; Olkaria I, Olkaria II, Olkaria IV, Olkaria V, and Wellhead generation plants, with a third private plant Olkaria III. Additionally, a pilot wellhead plant of 2.5 MW has been commissioned at Eburru and two small scale plants have been built by the Oserian Development Company to power their rose farm facilities with a total of 4 MW.
The Svartsengi Power Station is a geothermal power plant, which is located in the Svartsengi geothermal field, about four km north of Grindavík, approximately 20 km SE of Keflavík International Airport and 45 km from Reykjavík. The electric power station was built in 1976 by the subsidiary of Alterra Power, HS Orka and it was the world´s first geothermal power plant for electric power generation and hot water production for district heating.
The Hellisheiði Power Station is the eighth-largest geothermal power station in the world and largest in Iceland. The facility is located in Hengill, southwest Iceland, 11 km (7 mi) from the Nesjavellir Geothermal Power Station. The plant has a capacity of 303 MW of electricity and 400 MWth of hot water for Reykjavik's district heating. The power station is owned and operated by ON Power, a subsidiary of Reykjavík Energy.
The Malitbog Geothermal Power Station is a 232.5 MW geothermal power plant or an earth steam turbined electric generator—the world's largest geothermal power plant under one roof located in Malitbog, Kananga, Leyte, Philippines. The power plant is one of four operating in the Leyte Geothermal Production Field. The power plants serve 10 million households in Visayas with an average of 160 kiloWatthour per Household of 3 per month. The other 7 million is served by the Panlipin-on Geothermal Power of 100 Megawatts.
Energy Development Corporation is the largest producer of geothermal energy in the Philippines and the second largest in the world. It is involved in alternative energy projects, including geothermal, hydroelectric and wind energy projects. The company was formerly owned by the Philippine National Oil Company, a state corporation owned by the Republic of the Philippines engaged in the exploration of resources, production of energy and distribution of power supply to smaller electricity distributor. EDC was privatized and acquired by the Lopez Group as part of its energy and power supply utility business units.
Menengai II Geothermal Power Station, is a 35 MW (47,000 hp) geothermal power station under construction in Kenya. The power station is owned and under development by Globeleq, an independent power producer headquartered in London, United Kingdom. Globeleq is 70 percent owned by British International Investment and 30 percent by Norfund.
The Aluto–Langano Geothermal Power Station, also known as Aluto Langano Geothermal Power Station, is the only geothermal power station in Ethiopia.
