US, South Africa partner on solar energy storage

The US Department of Energy (DoE) through Solar Energy Technologies has partnered with SolarReserve to advance concentrating solar-thermal power (CSP) research and development.

The $2 million contract is part of the DoE’s FY2018 SETO funding programme and will develop a best-in-class next generation heliostat design, optimised for CSP technology projections of the next decade.

Solar Reserve is partnering with South Africa’s Stellenbosch University and New Mexico based Sandia National Laboratories to conduct research and development.

The aim is to be able to use storage to store solar energy to meet peak demand periods, even at night.

Heliostats are the dual-axis solar tracking mirrors that concentrate and focus the sun’s energy onto an energy collection receiver atop a central tower.

Within the receiver, fluid flows through piping that forms external walls; this fluid absorbs the heat from the concentrated sunlight. In SolarReserve’s technology, the fluid utilised is molten salt, which is used both as a heat transfer fluid, as well as a thermal energy storage medium.

Kevin Smith, SolarReserve’s CEO, said: “We are excited to participate in this initiative and aggressively drive innovation that will lower delivered cost of solar electricity that has the added benefit of round-the-clock availability through energy storage.

“Through this award, we can develop breakthrough solutions for cost-effective sustainable energy now and for the generations to come – with the goal of fostering new industries and creating thousands of U.S. jobs.”

The heliostat field can account for up to 50% of a CSP project’s capital cost, hence it is a critical component in any cost reduction initiatives.

Source:  www.esi-africa.com


Posted on November 8th, 2018

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