معنی کلمه electricity supply

Battery is just an useful and available electricity supply.

Suppliers need to generate more electrical energy when demand is high .

Electricity supply has to match demand ,But demand changes over the course of a day .

It is during these peak periods when the demand for energy exceeds a utility's energy supply , which may cause severe electricity disruptions like brownouts and blackouts .

There are flywheels , when demand exceeds supply the kinetic energy in these flywheels is turned into electrical energy until other stations can turn up their generation to address demand .