Curtailment

Constraints into flexibility

Turn grid constraints into controlled flexibility

Curtailment allows renewable producers to temporarily reduce generation when the grid cannot absorb all feed-in, protecting assets while unlocking flexibility compensation.

As renewable generation grows, production increasingly exceeds local grid capacity. Solar and wind parks often generate simultaneously, causing congestion. This requires grid operators to control output to guarantee grid stability.

Curtailment provides a structured way to align renewable production with grid capacity, instead of uncontrolled shutdowns.

It means temporarily reducing output when the grid is constrained or market conditions are inefficient, such as during negative prices. Your installation continues to operate normally.

What is a cPPA?

A Corporate Power Purchase Agreement (cPPA) is a long-term energy contract that connects renewable electricity production directly to corporate consumption.

Electricity generated by a renewable installation — such as a solar or wind park — is delivered “as produced”. This means the consumer receives electricity following the actual generation profile of the asset.

This creates a clear commercial link between renewable generation and corporate energy demand, supported by transparent pricing agreements and clearly defined operational responsibilities.

When congestion events or redispatch signals arise, we send a control signal to temporarily reduce generation output within agreed technical and operational limits. You define the operational boundaries of your installation. We manage activation, market interaction and settlement. Activation always follows a structured and transparent process:

Integrated

Curtailment is executed through predefined technical interfaces with your installation or control systems.

Auditable

All activation conditions, limits and responsibilities are agreed in advance and documented in the contract.

Aligned

Curtailment actions follow the requirements of grid operators and congestion management programmes.

For the producers

Why it matters for producers

Wind producer-1

Curtailment protects your asset against avoidable downside while unlocking structured flexibility revenues.

For renewable producers this can mean:

Avoiding revenue erosion during extreme negative price hours
Receiving compensation under congestion management programmes
Reducing imbalance exposure
Maintaining grid compliance in constrained regions

Your installation does not only produce electricity. It becomes an active market participant that can generate value when flexibility is needed.

This ensures that your installation remains compliant while participating in flexibility mechanisms that support grid stability.

Talk to an expert

We help our clients apply curtailment to optimize costs and keep the energy grid in balance. Whether you're a wind or solar producer facing negative prices or looking to protect your subsidies, our specialists make curtailment work for you. Find out what's possible for your situation.

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Is curtailment relevant for your asset?

Curtailment is particularly relevant for renewable assets operating in regions with limited grid capacity or frequent redispatch events. Best suited for:

Solar parks in congested regions
Wind parks with grid constraints
CHP installations with controllable output
Renewable producers facing redispatch obligations

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Turn grid constraints into controlled flexibility

What is a cPPA?

How curtailment works in practice

Why it matters for producers

Talk to an expert

Is curtailment relevant for your asset?