ESB Networks applications, handled for you
Every commercial solar system needs ESB Networks' permission before it connects to the grid. We manage the whole application and the compliance documents for your business. You sign a Letter of Authority, and we do the rest.
Which application does your premises need?
The route depends on the size of your system and your grid connection. We confirm the right one at design stage.
| Route | Size | What it involves |
|---|---|---|
| NC7 Mini-generation | Up to 50 kVA | No witness test or Final Operational Notification. Your system is energised when installation is complete. |
| NC8 Small-scale generation | Above 50 kVA, up to 200 kVA | G10 grid protection relay. ESB witness test about 14 days after installation, energised on completion of the test, and Final Operational Notification 3 to 4 weeks later. |
| NC5 | Larger or non-standard connections | Used for larger generators, or where the connection itself has to change. ESB Networks studies these individually, so we build in extra time. |
Sizes are ESB Networks' current categories, and your system can't exceed what your connection allows. Timelines are typical, not guaranteed.
From first conversation to final sign-off
- 1
Talk to our team
Tell us about your premises and what you want to achieve.
- 2
Assessment and proposal
We assess your electricity use and your roof, and design the system.
- 3
Order and authority
You sign a Letter of Authority so we can act for you with ESB Networks.
- 4
ESB application
We prepare and submit the NC7, NC8 or NC5 application with the compliance documents.
- 5
SEAI grant application
We prepare the grant application. No works start until the offer is in place.
- 6
Installation
Our team installs the system once the connection agreement and grant offer are in place.
- 7
Witness test (NC8)
ESB Networks witnesses the protection, about 14 days after installation.
- 8
Energisation
Your system goes live. NC7 systems are energised when installation is complete.
- 9
Final notification (NC8)
The Final Operational Notification follows about 3 to 4 weeks after the witness test.
- 10
Grant claim
We prepare the claim and SEAI pays the grant directly to your business.
How long does it take?
ESB permissions can take circa 3 months, so the sooner you start, the safer your grant.
- Our lead time from order runs alongside ESB permissions
- If permissions are already in place, lead time is about 4 weeks
- Enhanced SEAI grant works must finish within the 8-month grant offer
Time on site
| System size | Typical working days |
|---|---|
| 50 kWp | 3 |
| 100 kWp | 4 |
| 200 kWp | 5 |
| 300 kWp | 7 |
What we handle
- The right application route for your connection
- Single line diagrams and the compliance documents
- G10 protection and witness test arrangements
- Liaison with ESB Networks from start to finish
What we need from you
- A signed Letter of Authority
- Your electricity connection details
- Access to the site for survey and installation
Let's get started
Talk to our team and we'll show you what it means for your premises.