The Department of Energy on CleanTechnica writes on their latest advancement in energy storage.
- The Department of Energy’s National Renewable Energy Laboratory is in the late stages of prototype testing sand to store energy.
- Excess energy from wind or solar is used to heat silica sand which is then gravity fed into insulated concrete silos for thermal energy storage. When energy is needed the sand particles are gravity fed through a heat exchanger which heats and pressurizes a gas in the sand, turning turbines with clean energy.
- While this technology is still in its infancy, this could prove to be a technological breakthrough for energy storage.
Read the full article here.