# Supercapacitor Made of Concrete Could Provide Renewable Energy Storage  ## About - Author: E&T editorial staff - Title: Supercapacitor Made of Concrete Could Provide Renewable Energy Storage - Tags: #articles - URL: https://eandt.theiet.org/content/articles/2023/07/supercapacitor-made-of-concrete-could-be-used-for-renewable-energy-storage/ ## Highlights A low-cost energy storage system designed to stabilise the use of solar and wind energy on the grid has been developed using just cement, carbon black (which resembles very fine charcoal) and water. --- They calculated that a block of nanocarbon-black-doped concrete that is 45 cubic meters in size would have enough capacity to store about 10 kilowatt-hours of energy, which is considered the average daily electricity usage for a household. Since the concrete would retain its strength, a house with a foundation made of this material could store a day’s worth of energy produced by solar panels or windmills and allow it to be used whenever it’s needed. ---