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Capacity Limiting Contract (CBC)

A Capacity Limitation Contract (CBC) is an agreement between a grid operator and an electricity consumer or producer. In this contract, the participant temporarily reduces consumption or feed-in in return for compensation. This creates available capacity on the grid when it is needed most.

With a CBC, you help prevent grid congestion—while turning flexibility into a valuable asset.

What characterises a CBC?

  • Purpose: reduce grid congestion by temporarily adjusting consumption or generation
  • Compensation: you receive financial compensation for your flexibility
  • Duration: the contract typically runs until grid reinforcement in the area is completed

Two types of CBC

  1. CBC-T (Time-based capacity limitation)
    You agree in advance on fixed time windows during which your capacity is limited. For example, daily between 16:00 and 19:00.
    Predictable and plannable—for both you and the grid operator.
  2. CBC-A (On-call capacity limitation)
    You make flexible capacity available and are only activated when the grid is under pressure. You are notified at least one day in advance (day-ahead).
    Flexible when needed—no limitation if it’s not required.

CBC and GOPACS

GOPACS is the joint congestion management platform of the Dutch grid operators. The platform enables the smart and transparent use of flexible capacity to resolve congestion where it occurs. Within GOPACS, CBCs are used to make flexible capacity available and activate it when needed. This prevents solving a bottleneck in one location from creating a new issue elsewhere on the grid.

Eligibility

Companies can enter into a CBC if they:

  • have a minimum contracted transport capacity (e.g. ≥100 kW for consumption and/or generation)
  • can technically adjust their consumption or generation at fixed times or on request
  • are located in a region where transport scarcity has been declared

What’s in it for you?

With a CBC, you:

  • contribute to a stable and future-proof energy system
  • turn flexibility into an additional revenue stream
  • help create space for growth and electrification in your region

Find out how to set up a CBC with your grid operator.

Interested in getting a CBC? See here how you can get one from your grid operator.

FAQ Capacity Limitation Contracts (CBC)

– General Questions

What is a Capacity Limitation Contract (CBC)?+
A CBC is an agreement between a grid operator and a party with flexible capacity. The party agrees to reduce electricity consumption or generation at specific times to relieve local pressure on the grid.
Why do CBCs exist?+
CBCs are designed to prevent grid congestion by temporarily reducing electricity usage or generation, helping to make better use of the existing electricity grid.
How is a CBC different from redispatch?+
A CBC is agreed in advance and activated on the day-ahead market. Redispatch is more flexible and is used on the same day (intraday).
When is a CBC activated?+
CBCs are activated when congestion is expected in a specific area the following day. The reduction is scheduled in advance.
What does “capacity limitation” mean for my connection?+
It means you temporarily use or generate less electricity than usual. The maximum allowed capacity is defined in the contract.

– Participation & Eligibility

Who can participate in a CBC?+
Large consumers or producers with at least 100 kW of contracted transport capacity located in a congestion area.
What are the requirements to participate in a CBC?+
You need to be able to control your flexible capacity, be located in a congestion area, and provide metering data.
Do I need to be a CSP to participate?+
No. You can also participate via a Congestion Service Provider (CSP).
How do I know if I’m in a congestion area?+
Congestion areas are listed on the national capacity map. Your grid operator or CSP can also advise you.

– Contract Functionality

What is defined in a CBC?+
The maximum electricity consumption or production allowed during congestion periods, and the conditions under which it applies.
How often and how long will my capacity be limited?+
This depends on your area. Sometimes a few times per year, sometimes more often. Duration is typically per time block.
Is my flexibility used on-call or on schedule?+
In CBCs, the capacity limitation is scheduled. You know in advance when flexibility will be used.
What happens if I cannot comply with the contract?+
You may receive a reduced payment or a penalty, depending on the terms of the agreement.
Will I be informed in advance when activation is needed?+
Yes. The timing of the limitation will be communicated at least the day before.

– Compensation

Do I receive compensation for participating?+
Yes. You receive a fixed availability payment for the capacity you commit. Sometimes additional compensation is paid when activated.
How is the payment determined?+
It depends on the agreed capacity, the duration of the reduction, and current market conditions. It is set out in the contract.
Do I get paid if I am not activated?+
Yes. Even if you are not activated, you receive the availability fee.
Are there additional payments during activation?+
Sometimes. It depends on your contract. Ask your grid operator or CSP for details.

– Technology & Infrastructure

What are the technical requirements?+
You need a smart meter or metering system, the ability to share data promptly, and the capability to control your usage or generation.
Do I need metering installations?+
Yes. You must be able to monitor and report electricity usage or generation, often via an EAN code linked to your connection.
Do I need to send real-time data?+
Not necessarily real-time, but timely enough. Your grid operator or CSP will inform you of the requirements.
Do I need remote control over my processes?+
It’s not mandatory but highly recommended. Automatic control increases reliability and makes it easier to fulfill obligations.

– Practical & Administrative

How do I sign a CBC?+
Contact your grid operator or a CSP. They will guide you through the process, from eligibility check to contract signing.
Should I contact the grid operator or a CSP?+
You can contact either. A CSP can manage the process and control on your behalf.
How long does a CBC last?+
Until the grid in your area is reinforced. This may take several months or even years.
Can I terminate the CBC early?+
Yes, but notice periods apply. Check your contract or ask your grid operator or CSP.
Does my energy supplier need to be involved?+
Not necessarily. However, your BRP must be informed to ensure proper administrative and technical alignment.

Back to Glossary

From grid operators, for the market

GOPACS is the joint initiative of all Dutch grid operators. We coordinate solutions to grid congestion, provide transparent insights into the congestion market, and encourage the flexible use of electricity to keep the energy system resilient and future-proof.