Our electricity system operates at a frequency of 50Hz, within limits as above.
Currently (no pun intended!) the National Grid is calling for suppliers to quote for fast response generation and/or storage to keep the frequency within its narrow boundaries.
There are two ways of looking at this: either
- it is a commendable and efficient way to address peak capacity issues, only paying for generation that is actually needed
- it is an admission of failure to communicate to the consuming public the value of relatively modest changes in behaviour that would substantially reduce peak demand and render such projects unnecessary