A new energy storage design could allow buildings to store solar power at just 10% of the cost of existing battery technology. Researchers at the University of South Australia created the phase-change system, which usesa low-cost liquid salt solution that is melted and solidified to store and release energy.
The new technology will help to even the gap between the peak generation hours of the daytime and electricity use, allowing renewable but intermittent sources such as solar and wind to provide more electricity to the grid. The system, which is scalable for both residential and commercial use, can also cut refrigeration electricity costs by up to 50% by charging during non-peak times for use when demand is higher.
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