Peak shaving refers to a reduction in the power drawn from the grid to keep the load below a given maximum.
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Peak shaving is financially motivated as grid operators charge grid fees based on the highest recorded load in a given time period.
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Peak shaving facilitates significant savings without forcing users to compromise on comfort.
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Two paths – one goal
Generally speaking there are two ways to shave peaks: Demand and supply side management. These approaches may be employed individually or in combination to reduce peak loads.
Violation of the limit of the grid connection point
Managing the demand side
To shave peaks on the demand side, the power consumption is simply capped to respect the threshold by shutting down/limiting large consumers eg. EV charging.
Temporary reduction of electricity demand
Managing the supply side
To shave peaks on the supply side, onsite electricity sources, such as generators or batteries, are employed to cover the demand that exceeds the limit.
Temporary supply of electricity from local sources
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