Green Energy Storage: The Potential Use of Compressed Liquid CO2 and Large Sub-Terrain Cavities to Help Maintain a Constant Electricity Supply
Received Date: Jan 26, 2017 / Accepted Date: Feb 16, 2017 / Published Date: Feb 23, 2017
Abstract
One of the problems using most green energy sources is that there is not a constant supply. Therefore, there is a need for the development of energy storage and release systems. Many different technologies have been developed and employed for storage that among others includes:
1. Pumped hydro-power (potential energy),
2. Railway lines and carriages loaded with stones in hilly terrain (potential energy),
3. Thermal storage (thermo-dynamic energy),
4. Flywheels (kinetic energy),
5. Batteries (chemical energy),
6. Phase transition of salts (thermo-dynamics energy) and
7. Compressed air (thermo-dynamic energy)
Here I propose the potential use of CO2 and its phase-transition from gas to liquid in large sub-terrain cavities, such as disused mines, for electric energy storage and ground-heat extraction.
Keywords: Carbon dioxide; Compressed air energy storage (CAES); Disused mines; Green energy; Electricity supply
Citation: Dalgaard JZ (2017) Green Energy Storage: The Potential Use of Compressed Liquid CO2 and Large Sub-Terrain Cavities to Help Maintain a Constant Electricity Supply. Innov Ener Res 6:153. Doi: 10.4172/2576-1463.1000153
Copyright: © 2017 Dalgaard JZ. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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