A new, low-cost energy concrete storage system could make sustainable power available 24/7, no batteries needed.
Solar and wind power are excellent renewable sources, but they have one big problem: They’re not always available. The wind doesn’t always blow; the sun doesn’t always shine. To keep the power flowing whenever we need it requires batteries, but batteries are expensive and don’t last long. They’re also a waste problem and a hazardous one at that.
Though the researchers envision foundations and columns made of this technology, the system does not have to be integral to the structure. The material could be used to pave driveways and patios, build fence posts or even, says Admir Masic, a co-author of the paper, simply put in a hole in your yard. Franz-Josef Ulm, senior author of the paper, says this technology could make each home a part of the transition to sustainable energy in a way everybody can manage without ruining their budgets.
The materials are relatively inexpensive and available pretty much everywhere on Earth, making it a potentially transformative technology in more ways than one. Masic points out that this material could be produced locally using local knowledge and skills, making sustainable energy available in places with little infrastructure and no power grid.Researchers Must Test Supercapacitors
Safety issues, such as determining how the supercapacitor interacts with lightning, must also be addressed. And because the system requires an electrolyte salt solution, the design must be made leakproof. But those are engineering details. “We’ve proven this works and is scalable,” says Ulm. “The engineering starts now.”
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