We are becoming a separate company

In April 2019, the Electricity System Operator is becoming a separate company within the National Grid Group. Find out more about what this change will mean.

Demand turn up

The demand turn up (DTU) service encourages large energy users and generators to either increase demand or reduce generation at times of high renewable output and low national demand. This typically occurs overnight and during weekend afternoons in the summer. Find out about routes to market as a provider.

We consider the following In assessing the offers received:

  • availability payment;
  • utilisation payment;
  • other parameters such as volume (MW);
  • response time;
  • recovery time; and
  • duration of response.

Submission and assessment

For those wishing to participate in flexible demand turn up, submissions of prices and MW availability will be assessed on Fridays and Tuesdays during BST. 

Providers will be notified if they are required.

Friday assessments will cover a requirement Friday-Monday

Tuesday assessments will cover a requirement Tuesday-Thursday

Unsuccessful parties will have the option to make themselves available for the service for a utilisation payment only. Choosing this option will have no impact on the outcome of the assessment but offers a possible route to market for providers who have the ability to provide the service for a utilisation payment only.

We must balance the system in the most economic and efficient manner and we will, therefore, consider the cost of alternative actions when deciding whether to procure and use the demand turn up service.