Flexible capacity

Flexible capacity is the ability to temporarily adjust electricity consumption or generation in response to the needs of the grid. This means an installation can, at certain moments, consume less electricity, generate more, or temporarily shut down. Flexible capacity helps keep the grid balanced and prevents overload—also known as grid congestion.

Examples of flexible capacity:

  • A cooling system or pump that is temporarily switched off without disrupting processes
  • A battery that discharges during peak moments and charges during low-demand periods
  • A CHP unit that generates additional electricity during high grid load
  • A production process that is shifted to a less congested moment

Flexibility in the market: CBC/CSC and redispatch

Within congestion management, grid operators use two routes to deploy flexible capacity:

  1. CSC and CBC contracts — used in the day-ahead market
    These contracts define in advance how much flexible capacity is available in a specific area.
  2. Redispatch — used in the intraday market
    Flexibility is activated on shorter notice, based on actual grid conditions and market data.

Both routes aim to temporarily increase available transport capacity in areas with (expected) congestion.

What are the benefits of offering flexible capacity?

  • You receive compensation for your flexibility
  • You contribute to a more reliable electricity grid
  • You help enable new connections in congested areas
  • You use your assets or processes more efficiently
  • You strengthen your position in a growing congestion market

Getting started with flexible capacity

Do you have controllable capacity? Enter into a CSC or CBC contract with your grid operator, or work with a Congestion Service Provider (CSP). They can help you unlock your flexibility and participate in the congestion market.

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