Distributed Energy Resources (DER)

If you are considering installing equipment to generate or store electricity likewind turbines, solar panels, batteries or combined heat and power units, we’re here to help. In our industry, DER is also known as distributed generation (DG).
Here is how we can help you
Need help with existing solar panels?
Installing Distributed Generation below 3.68kW 
Installing Distributed Generation rated at 3.68kW or higher
Products and services for DER owners
Helpful resources and quick links
Image of a wind turbines in a field

1. Need help with existing solar panels? 

For example: 

  • You need a letter confirming your solar connection to our electricity network so you can change suppliers
  • You want to find out if your installation has been registered with us
  • You want to find out what additional information we need if your installation isn't registered with us
Find out more
Image of solar panel on the roof of a detached house

2. Installing Distributed Generation below 3.68kW

For example you want to install: 

  • Solar panels 
  • Electric vehicle charging points
  • Electric heat pumps 
Find out more
Solar panels on the roof of a house

3. Installing Distributed Generation rated at 3.68kW or higher

For example you want to install: 

  • Wind farms
  • Solar farms
  • Large scale energy storage
  • Larger scale heat pumps
Find out more
Image of a wind farm

Products and services for DER owners

Through our smart grid development and innovation teams, we are implementing new products and services to make life easier for distributed generation customers.

  • Flexible connections 
    • Customers can apply for a flexible connection to lower the cost of connection by agreeing to export less energy when there is limited network capacity. 

  • DER Owners and Operators

    Register for access to our outage planning application Network Vision to view Extra High Voltage (EHV) outages affecting your site. It’s vital, for all voltage levels, that we have the correct operational contact information for your site. You can view and amend your Site Responsibility Schedule (SRS) so we can inform you of planned works that could impact your sites operation.

    Find out more

  • The Embedded Capacity Register

    The Embedded Capacity Register (ECR) has replaced the System-Wide Resource Register (SWRR). The Register provides information on Distributed Energy Resources and network requirements.

    Find out more

  • Want to discuss your project?

    Discuss your project with us at one of our DER surgeries before completing an application. 

    Find out more

  • Distributed Generation Mapping tool

    Use our Distributed Generation mapping tool to check the capacity of our network in your local area.

    Find out more

  • Innovation

    Find out about our innovative projects and how they are benefiting our customers.

    Find out more

  • Timed or profiled connections

    A cost-effective way for distributed generation connections over 1MW

    Find out more

  • Changes to our budget estimation process

    We have made changes to our budget estimate process, read our guide for more information.

    Find out more

  • Apply to connect an energy storage system

    Electricity storage allows you to store electricity and use it at another time.                                                                                                                                                 

    Find out more

  • Supporting Community Energy Projects

    Community energy has an important role to play in the UK transition to Net Zero. 

    Find out more 

  • Facilitating Renewable Energy 

    Learn what we're doing to connect large scale volumes of green renewable energy. 

    Find out more
Appendix G summaries 

  • Appendix G Summary - East of England

    The Appendix G for the East of England informs National Grid Electricity System Operator (NGESO) of the amount of generation per GSP by us. The available capacity is calculated by NGESO, which can lead to the initiation of reinforcement, operational requirements or Load Management Schemes to permit new connections.

    Download PDF

  • Appendix G Summary - South East of England

    The Appendix G for the Southeast of England informs National Grid Electricity System Operator (NGESO) of the amount of generation per GSP by us. The available capacity is calculated by NGESO, which can lead to the initiation of reinforcement, operational requirements or Load Management Schemes to permit new connections.

    Download PDF

  • Guide for generation enquiries

    Our guide for generation enquiries is designed to help customers navigate their way through the connection process where either an Appendix G submission or Project Progression is required.

    Download PDF

Contact us

Call us

Lines are open Monday - Friday 8.30-5.00pm

0203 324 1460