Definition
An aggregator is a market participant that pools consumption or production flexibilityAbility to change power consumption or production in response to price signals or system operator needs. from many end users - households, industry, or batteries - and offers this aggregated capacity in the balancing market, reserve market, or spot market. Aggregators play a central role in the future smart power system: they enable small actors to participate in markets that currently require large volumes. The regulatory framework for aggregators is under development in Norway, partly driven by the EU's Electricity Market Directive (EMD). Aggregators typically communicate via APIApplication Programming Interface - standardised interface that allows two systems to communicate with each other. with ElhubNational hub for metering data and market processes in the Norwegian electricity market. and system operators.