Regional Development Programmes

Collaborating to unlock network capacity

We’re collaborating with National Grid ESO and Electricity Transmission to unlock more network capacity and connect more generators at lowest cost.


About Regional Development Programmes (RDP)

RDPs are projects that identify where reinforcements are preventing customers from connecting to the network and aim to provide tools and resources to help.

This allows Distributed Energy Resources (DERs) to connect faster, ahead of reinforcement which, in some cases, is planned for 10+ years. This whole-systems approach requires collaboration between UK Power Networks, National Grid Electricity Transmission and National Grid Electricity System Operator.

This approach to allowing DERs to connect early will reduce customer costs by better managing the clear dependencies between the Transmission and Distribution Network and assisting the journey to the UK becoming Net Zero by 2050.

UK Power Networks has two RDP areas, the Eastern area and the South East. Both networks face challenges with transmission network upgrades due as late as 2030 and beyond. Drivers for the transmission reinforcement include large offshore wind and nuclear generation planned in the East and interconnectors in the South East.

South East Coast RDPs

MW Dispatch RDP solution

UK Power Networks has been collaborating with the ESO to implement a Megawatt (MW) Dispatch service in the SPN network.

Through coordination and data exchange with our control room, the project will enable ESO to instruct DER units to reduce their output at times of system constraint, while our DSO dispatches the generators.

This solution enables customers to receive constraint payments for the electricity they would have otherwise generated. This will, in turn, provide a cheaper alternative to the existing constraint management process used within the balancing mechanism, helping to reduce costs for consumers.

Customers are currently being onboarded to participate in this service, which will be further developed to include other dispatch scenarios.
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Wind solar farm

Next steps – Registration starts

We are pleased to announce that the MW Dispatch Service Terms have now been finalised, following the closure of the customer commercial document review period. This means that certain customers can now begin registering for the service through NGESO’s Single Market Platform below.

To register, you will need to have the ‘Control and Visibility’ clause in your Connection Offer and all of the key information (i.e. the list of information found in the Participation Guide in Appendix 4). Registration can take a few months and we are aiming for the service to be in operation in the spring/early summer 2024.

If you have any queries. Please contact UK Power Networks at or the NGESO’s Markets Team at

Register here

Dispatch API Specification now available

In line with customer feedback, we have published a simpler, more user-friendly version of the Dispatch Application Programming Interface (API) Specification document.

Covering both MW Dispatch and Flexibility Services, this document serves as a comprehensive guide for developers, outlining the functionalities, endpoints, request and response formats, and other technical details of the dispatch interface.

Read more at the button below, or in the documents section at the bottom of the page.

If you have any queries or feedback on this specification, please contact UK Power Networks at or

Download Dispatch API Specification

South East Coast RDPs

N-3 solution

In the context of RDP, an N-3 Operational Tripping Scheme (OTS) is a mechanism to ensure that the transmission network remains within its safe limits during an N-3 event.

An N-3 event occurs when a ‘double circuit fault’ on the transmission network takes place while a transmission circuit is under maintenance. This is considered to be a once-in-a-hundred-year event. The N-3 Operational tripping scheme can disconnect DERs feeding into the impacted part of the transmission network within 30 seconds of the N-3 event.

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