Torresol Energy

Torresol Energy is a renewable-energy company headquartered in Getxo, in Biscay, within Spain’s Basque Country. Its business is centered on concentrated solar power, also called thermosolar energy: technologies that use mirrors to concentrate sunlight, convert the resulting heat into steam, and drive conventional turbine generators. Unlike photovoltaic systems, which convert sunlight directly into electricity, concentrated solar plants can incorporate thermal storage so that generation continues after sunset or during periods without direct solar radiation. The company began taking shape in 2007, when SENER Grupo de Ingeniería decided to promote and develop its own portfolio of thermosolar facilities. SENER subsequently partnered with Masdar, the renewable-energy company associated with the Government of Abu Dhabi. Torresol Energy was formally established in 2008, with SENER holding a 60 percent controlling stake and Masdar holding 40 percent. The partnership combined SENER’s engineering and solar-thermal technology capabilities with Masdar’s investment and international renewable-energy orientation. Torresol Energy’s stated scope covers the full project lifecycle: technological development, plant construction, commercial operation, and maintenance. Its geographic ambitions have extended beyond Spain to southern Europe, North Africa, the Middle East, the southwestern United States, and South America. Spain nevertheless became the company’s principal demonstration market and the location of its best-known facilities. The company’s most prominent project is Gemasolar, a 19.9-megawatt central-tower solar plant in Fuentes de Andalucía, Seville. Gemasolar combines a field of heliostats with a receiver mounted on a 140-meter tower and a molten-salt thermal-storage system. The stored heat allows the plant to produce electricity when sunlight is unavailable, extending operating capability beyond daylight hours. The facility entered commercial operation in 2011 and was presented as the first commercial solar plant to combine central-tower receiver technology with molten-salt storage. Its design includes approximately 2,650 heliostats arranged around the tower over a solar field of about 185 hectares. The plant’s expected annual net production was described as approximately 110 gigawatt-hours, with storage capacity of up to 15 hours under the cited operating specifications. Torresol Energy also developed the Valle 1 and Valle 2 plants near San José del Valle in Cádiz. These two adjacent facilities use parabolic-trough concentrating solar technology rather than a central tower. Each has a stated generating capacity of 50 megawatts and an expected annual net production of about 160 gigawatt-hours. Their solar fields use SENERtrough parabolic collectors, which track the sun and focus radiation onto receiver tubes containing circulating thermal oil. The heated oil produces steam for turbine generation, while each plant includes thermal storage designed for approximately 7.5 hours. Through these projects, Torresol Energy’s brand identity has been associated less with consumer-facing products than with utility-scale renewable infrastructure, engineering integration, dispatchable solar generation, and the commercial demonstration of thermal-storage technologies. Public reference material identifies Gemasolar and the Valle plants as the company’s principal operating portfolio. Information about later ownership changes, current corporate structure, current executives, and present operating status is not established in the supplied sources.

Torresol Energy emerged from SENER Grupo de Ingeniería’s decision in 2007 to promote its own concentrated solar power plants. SENER, a Spanish engineering group with expertise in energy infrastructure and solar-thermal technology, formed a partnership with Masdar, the renewable-energy company associated with the Government of Abu Dhabi. The partnership led to the creation of Torresol Energy in 2008, with SENER holding 60 percent and Masdar holding 40 percent. The company was established to develop the full value chain of large-scale thermosolar projects. Its remit included technology development, project construction, plant operation, and maintenance. The business plan contemplated activity in southern Europe, North Africa, the Middle East, the southwestern United States, and South America, while Spain served as the principal location for its initial portfolio. Torresol Energy’s first major project was Gemasolar, built at Fuentes de Andalucía in Seville. The facility uses a central solar tower, a surrounding field of heliostats, and molten salt to capture and store thermal energy. Approximately 2,650 heliostats direct sunlight toward a receiver at the top of a 140-meter tower. The heat transferred to the molten salt can subsequently be used to produce steam and generate electricity when direct sunlight is unavailable. Gemasolar entered commercial operation in 2011 and became a prominent demonstration of central-tower solar generation combined with thermal storage. Its stated generating capacity is 19.9 megawatts, with expected annual net production of approximately 110 gigawatt-hours and storage capability of up to 15 hours under the referenced specifications. The next stage of the company’s Spanish portfolio was the Valle complex in Cádiz. Valle 1 and Valle 2, located near San José del Valle, were commissioned in January 2012. Each plant has a stated capacity of 50 megawatts and uses parabolic-trough technology. Long rows of tracking mirrors concentrate sunlight onto receiver tubes containing thermal oil. The heated oil transfers energy to water, creating steam that drives a turbine and generator. Both plants include thermal storage designed to provide approximately 7.5 hours of capacity. The solar fields use SENERtrough collectors and precision tracking systems developed for concentrating solar applications. These projects gave Torresol Energy a portfolio spanning two important concentrated-solar configurations: tower-based generation with molten-salt storage at Gemasolar, and parabolic-trough generation with storage at the Valle plants. The company’s public profile consequently became associated with dispatchable solar electricity, thermal-storage integration, and the commercialization of utility-scale solar-thermal engineering rather than with consumer products. The supplied reference material does not establish subsequent ownership changes, later projects, current executives, or the company’s present operating status.

• 2012

  Valle 1 and Valle 2 are commissioned

  [1]Torresol Energyen.wikipedia.org

  Two 50-megawatt parabolic-trough plants at San José del Valle in Cádiz were launched, each incorporating thermal-energy storage.

• 2011

  Gemasolar enters commercial operation

  [1]Torresol Energyen.wikipedia.org

  The Gemasolar central-tower plant in Seville entered commercial operation, combining heliostats, a tower receiver, and molten-salt storage.

• 2008

  Torresol Energy is established

  [1]Torresol Energyen.wikipedia.org

  SENER and Masdar established Torresol Energy as a joint renewable-energy company, with SENER holding 60 percent and Masdar 40 percent.

• 2007

  SENER begins promoting its own thermosolar projects

  [1]Torresol Energyen.wikipedia.org

  SENER Grupo de Ingeniería began developing the initiative that would become Torresol Energy, with the objective of promoting concentrated solar power plants.

A utility-scale renewable-energy developer focused on concentrated solar power, thermal storage, and the engineering, construction, operation, and maintenance of thermosolar generating facilities.

• Central-tower concentrated solar power plant · 2011

  Gemasolar

  Gemasolar is Torresol Energy’s central-tower thermosolar plant in Fuentes de Andalucía, Seville. A field of approximately 2,650 heliostats reflects sunlight toward a receiver on a 140-meter tower. The plant uses molten salt to store heat and generate steam for turbine-based electricity production after direct sunlight has diminished. Its stated capacity is 19.9 megawatts, with expected annual net production of about 110 gigawatt-hours and storage capability of up to 15 hours under the cited specifications.

• Parabolic-trough concentrated solar power plant · 2012

  Valle 1

  Valle 1 is one of two adjacent parabolic-trough thermosolar plants at San José del Valle in Cádiz. Its tracking mirrors concentrate sunlight onto receiver tubes containing thermal oil. The heated oil is used to produce steam, which drives a turbine and generator. The plant has a stated generating capacity of 50 megawatts, expected annual net production of approximately 160 gigawatt-hours, and thermal storage designed for about 7.5 hours.

• Parabolic-trough concentrated solar power plant · 2012

  Valle 2

  Valle 2 is one of two adjacent parabolic-trough thermosolar plants at San José del Valle in Cádiz. Its tracking mirrors concentrate sunlight onto receiver tubes containing thermal oil. The heated oil is used to produce steam, which drives a turbine and generator. The plant has a stated generating capacity of 50 megawatts, expected annual net production of approximately 160 gigawatt-hours, and thermal storage designed for about 7.5 hours.

1. 1Torresol Energyen.wikipedia.org