G99 support
Generation, storage and EV connection design
Grid connection design for solar, wind, battery storage and EV charging, including G99 application support.

What we do
Generation, storage and EV charging projects need a connection design that reflects both the site and the network operator’s offer. We review the proposed import and export requirements against the point of connection.
Connection single-line diagrams and compound arrangements set out how generation, battery equipment or charging infrastructure interfaces with the supply. We coordinate the substation and connection equipment within the agreed design scope.
We support G99 submissions and technical discussions with the DNO. Network capacity and acceptance remain subject to the operator’s assessment.
Standards we design to
We identify the applicable requirements at the start of the agreed design scope.
- ENA Engineering Recommendation G99
- ENA Engineering Recommendation G100 where export limitation applies
- Relevant DNO generation connection requirements
Who this is for
This service supports energy developers, commercial and industrial. We agree the design interfaces, responsibilities and required outputs with your team before work begins.
Talk to us about your project
Tell us where the project sits and what you need.

