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Steam engine tech could bring cost of solar energy storage down to $100/kWh

Derek Markham / November 7, 2013 / www.treehugger.com

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Steam engine tech could bring cost of solar energy storage down to $100/kWh

While solar energy has a great deal of potential as a sustainable source of power, a lack of affordable storage options is a significant weakness. A new startup in Australia, called Terrajoule, could be about to change that by using an old technology to for storing solar power for when demand is high but the sun isn’t up. Terrajoule has developed a system that uses steam piston engine (we did say it’s an old technology) and pressure vessels to accumulate and store solar energy. If their system works, it could provide a low-cost option for distributed solar power.

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