The Letter of Authority (LOA) gives DNO Renewables permission to liaise with the Distribution Network Operator on the customer's behalf. Most DNOs will not progress an application without one.
Who signs it
The customer whose electricity supply is being modified signs the LOA. In domestic projects, that's the person named on the electricity bill (usually the homeowner). In commercial projects, that's the business or property owner responsible for the supply.
Whose name goes on it
The LOA is between the supply account holder and DNO Renewables. The installer's company name is not the name that goes on the LOA (unless the installer is the account holder — for example if the project is on the installer's own premises).
Can the installer sign it?
Only if the installer's company is the account holder for that supply. Otherwise no. If an installer signs an LOA on behalf of a customer without authorisation, the DNO can refuse to accept it and the application won't progress.
Digital signature
Yes. Most LOAs are signed electronically. Either:
- Send the customer the LOA template through your normal e-signature tool (DocuSign, Adobe Sign etc.), or
- Ask us to send it directly and we'll return the signed copy to your project once complete.
Where to upload the signed LOA
Upload the signed LOA to the Documents section of the relevant application in your portal. We'll pick it up and attach it to the DNO submission.
LOA template
Use the DNO Renewables LOA template if you don't already have one. Ask us if you need a copy, or download it from the LOA article: What is a Letter of Authority?