Generation (G99)

Generation installations in excess of 16A (3.68kW) per phase must comply with Engineering Regulation (EREC) G99. Find all the guides and forms that you need here.

How to apply

You can download a standard G99 application form by clicking the button below.  

If you would like to apply for a ‘Study & Offer’ quotation, please include the ‘additional covering form’ with your G99 application which can be found here.

If you would like to know more about 'Study & Offer' quotes please click here.

Before you start

You will need:

  • Location plan(s)
  • Site layout plan(s)
  • Maufacturer's specification sheet

Do we serve your area?

It’s easy to find out if we work in your area, all we need is your site postcode.

Notes on Part 4 of the application

Should the information required in Part 4 not be available at the time of submitting your application, these may be submitted separately using the individual documents below. 

Contact us

We are here to answer your questions. 

0800 0963080

Call us: Monday to Friday, 8am - 5pm 

Or email us: