by Akshat Rathi, Quartz
Thanks to the modern electric grid, you have access to electricity whenever you want. But the grid only works when electricity is generated in the same amounts as it is consumed. That said, it’s impossible to get the balance right all the time. So operators make grids more flexible by adding ways to store excess electricity for when production drops or consumption rises.
About 96% of the world’s energy-storage capacity comes in the form of one technology: pumped hydro. Whenever generation exceeds demand, the excess electricity is used to pump water up a dam. When demand exceeds generation, that water is allowed to fall—thanks to gravity—and the potential energy turns turbines to produce electricity.
read more: https://qz.com/1355672/stacking-concrete-blocks-is-a-surprisingly-efficient-way-to-store-energy/?utm_source=The+Race+to+Zero+Emissions&utm_campaign=4204c67c90-EMAIL_CAMPAIGN_2018_08_21_12_30&utm_medium=email&utm_term=0_8c77564251-4204c67c90-61675697&mc_cid=4204c67c90&mc_eid=1f34820f82
- Expansion of fossil-fuel vehicle phase-outs moves world one step closer to a climate-safe future - April 22, 2020
- Germany goes greener with $95 billion push for train over plane - January 14, 2020
- EU sets out trillion euro plan to avert ‘climate crash’ - January 13, 2020