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Below is a list of links to the "Big Six" energy companies. Click on the link next to your energy provider to download the form you need to register your PV system.

Make sure that you fill everything in correctly and that you send it to your energy supplier IMMEDIATELY. If you are sending the form after 6th December, we highly recommend that you send it by registered mail and retain your proof of postage.

If you are a greentomatoenergy customer, don’t hesitate to call/email us with questions.

Click on the name of your electricity supplier:

- EON

- British Gas

- Scottish and Southern

- NPower

- Scottish Power

- EDF customers need to contact EDF directly in order to obtain the application form - 0800 328 9017. They will only supply application forms to EDF customers.