CSP

CONCENTRATING SOLAR POWER | SOLAR POWER, DAY AND NIGHT.

OVERVIEW

SolarReserve’s game-changing Concentrating Solar Power (CSP) technology with molten salt energy storage captures and stores the sun’s power to reliably provide electricity whenever it’s needed most.

Over 10,000 tracking mirrors called heliostats reside in a mechanical solar collection field where they follow the sun throughout the day and reflect and concentrate sunlight onto a large heat exchanger called a receiver that sits atop a central tower.

Within the receiver, fluid flows through the piping that forms the external walls; this fluid absorbs the heat from the concentrated sunlight. In SolarReserve’s technology, the fluid utilized is molten salt, which is heated from 550 ⁰F (288 ⁰C) to 1050 ⁰F (566 ⁰C). Molten salt is an ideal heat capture medium, as it maintains its liquid state even above 1050 ⁰F, allowing the system to operate at low pressure for efficient and safe energy capture and storage.

After passing through the receiver, the high temperature molten salt flows down the piping inside the tower and into an insulated thermal storage tank, where the energy is stored as high-­temperature molten salt until electricity is needed. Heat loss is only 1% per day.

SolarReserve’s technology leverages liquid molten salt as both the energy collection and the storage mechanism, which allows it to separate energy collection from electricity generation. When electricity is required, day or night, the high-­temperature molten salt is passed through a steam generation system which in turn is used to drive a conventional power turbine, which generates electricity.

Once the hot salt is used to create steam, the cooled molten salt is then piped back into the cold salt storage tank where it will then flow back up the receiver to be reheated as the process continues.

The steam generation process is identical to the process used in conventional gas, coal or nuclear power plants, except that it is 100 percent renewable with zero harmful emissions or waste. SolarReserve plants provide on-­demand, reliable electricity from a renewable source—the sun—even after dark.

Aurora

The Aurora Solar Energy Project located near Port Augusta is a 150 megawatt solar thermal power station incorporating 8 hours of storage (1,100 megawatts-hours). Aurora will deliver 500 gigawatt-hours of energy annually – providing fully dispatchable baseload electricity to the network when electricity is needed most.

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Copiapó

The Copiapó Solar Energy Project consists of SolarReserve’s industry leading CSP tower technology with molten salt thermal energy storage. This proven technology is able to provide reliable, non-intermittent electricity from solar energy 24-hours a day, without requiring any fossil fuel. In addition to zero-emissions, the project will help stabilize and lower electricity costs for Chilean families and businesses, while ensuring energy security for the country.

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Crescent Dunes

SolarReserve’s Crescent Dunes Solar Energy Facility located in Nevada is the first utility-scale facility in the world to feature advanced molten salt power tower energy storage capabilities. The project delivers enough firm, reliable electricity from solar energy to power 75,000 homes in Nevada during peak demand periods, day and night, whether or not the sun is shining. The project, which entered into commercial operation in late 2015 and delivers 110 megawatts of electricity plus 1,100 megawatt-hours of energy storage, is the only operating utility scale molten salt power tower on the planet.

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Kalkaar

The Kalkaar Concentrating Solar Power (CSP) Project located in the Free State Province is a 150 megawatt solar thermal power station incorporating 12 hours of full load storage (1,800 megawatts-hours). Kalkaar will deliver about 690 gigawatt-hours of power annually – providing fully dispatchable baseload electricity to the network when electricity is needed most. Storage will enable the solar thermal station to operate just like a conventional coal, gas or nuclear power station, reliably generating electricity day and night – except without any emissions. The Kalkaar project was developed in response to the South Africa Department of Energy’s Expedited Round (referred to as Round 4.5) call for CSP projects for the Renewable Energy Independent Power Producer Procurement Programme (REIPPPP).

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Kotulo Tsatsi

The Kotulo Tsatsi Concentrating Solar Power (CSP) Project located in the Northern Cape Province is a 150 megawatt solar thermal power station incorporating 12 hours of full load storage (1,800 megawatts-hours). Kotulo Tsatsi will deliver about 730 gigawatt-hours of power annually – providing fully dispatchable baseload electricity to the network when electricity is needed most. Storage will enable the solar thermal station to operate just like a conventional coal, gas or nuclear power station, reliably generating electricity day and night – except without any emissions. The Kotulo Tsatsi project was developed in response to the South Africa Department of Energy’s Expedited Round (referred to as Round 4.5) call for CSP projects for the Renewable Energy Independent Power Producer Procurement Programme (REIPPPP).

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Likana

The Likana Solar Energy Project consists of SolarReserve’s industry leading CSP tower technology with molten salt thermal energy storage. This proven technology is able to provide reliable, non-intermittent electricity from solar energy 24-hours a day, without requiring any fossil fuel. In addition to zero-emissions, the project will help stabilize and lower electricity costs for Chilean families and businesses, while ensuring energy security for the country.

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Redstone

The first of its kind in Africa, the Redstone Solar Thermal Power Project features SolarReserve’s world-leading molten salt energy storage technology in a tower configuration with the capability to support South Africa’s demand for energy when it’s needed most - day and night. The 100 MW project with 12 hours of full-load energy storage will be able to reliably deliver a stable electricity supply to more than 200,000 South African homes during peak demand periods, even well after the sun has set.

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Rooipunt

The Rooipunt Concentrating Solar Power (CSP) Project located in the Northern Cape Province is a 150 megawatt solar thermal power station incorporating 12 hours of full load storage (1,800 megawatts-hours). Rooipunt will deliver about 730 gigawatt-hours of power annually – providing fully dispatchable baseload electricity to the network when electricity is needed most. Storage will enable the solar thermal station to operate just like a conventional coal, gas or nuclear power station, reliably generating electricity day and night – except without any emissions. The Rooipunt project was developed in response to the South Africa Department of Energy’s Expedited Round (referred to as Round 4.5) call for CSP projects for the Renewable Energy Independent Power Producer Procurement Programme (REIPPPP).

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Sandstone

The Sandstone project will be a solar power plant complex with up to ten solar thermal towers, using the next generation of SolarReserve’s 24/7 baseload solar technology. Each tower will be 150-200 megawatts, with storage and fully dispatchable, each producing about 700,000 megawatt-hours per year. Times ten towers, this will total up to 2,000 megawatts of power capacity and 7,000,000 megawatt-hours of annual output – generating power when energy is most valuable, reducing cost and risk to customers. Each tower will have approximately 10 hours of full-load energy storage, totaling 20,000 megawatt hours of energy storage capability for the entire project. Sandstone will be built in Nevada, and connected to California’s and Nevada’s transmission systems.

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Tamarugal

The Tamarugal Solar Energy Project consists of SolarReserve’s industry leading CSP tower technology with molten salt thermal energy storage. This proven technology is able to provide reliable, non-intermittent electricity from solar energy 24-hours a day, without requiring any fossil fuel. In addition to zero-emissions, the project will help stabilize and lower electricity costs for Chilean families and businesses, while ensuring energy security for the country.

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