Energy Storage

There are many different methods for storing energy, from rechargeable batteries in electric vehicles to large facilities that compress air and release it to drive turbines that generate electricity. Regardless of the method, storage is a very flexible and valuable electricity resource.

Storage can act as a form of both supply and demand, drawing electricity from the grid when demand is low and releasing energy into the grid when demand is high. Storage is particularly useful in supporting the wide-scale integration of renewable resources, like wind and solar, because it can step-in to cover reduced energy output caused by sudden weather changes.

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Storage and the Electricity System

Energy storage is transforming the way we generate and use electricity by allowing surplus energy to be stored until needed. Storage can:

  • Help maintain the reliability of the grid by drawing electricity when demand is low and releasing that stored energy when demand is high
  • Support the wide-scale integration of renewables by stepping-in to cover reductions in solar and wind output caused by sudden weather changes
  • Improve energy security by providing back-up power to homes, businesses and communities
Different Types of Energy Storage

Distributed Energy Resources | Ontario’s Electricity Grid

One of the most significant changes to electricity systems around the world has been the emergence of new technologies that can support locally-owned facilities for electricity generation, control and storage.