Hi Andrew,
Thanks for your interest in Electric Ireland.
Yes, you would be opening a new account, with a different account number, and this would be for usage and charges commencing from your opening meter-reading/date. If the previous account-holder has not closed their account, yes, this will automatically close it (although if they receive bills by post, their final bill will go to your address if there is no forwarding address for them on the system - if you might be able to forward the closing bill to them, or pass to the property owner/agency for forwarding to them).
You can open your account with the MPRN, meter-reading and your bank details
here for the new customer offer. A 12-month contract applies. This offer is available until 28th February.
If you cannot commit to a 12-month contract, you would not receive the €265 credit, however you will still receive a 5% discount off the units used on every bill. To set up an account not committing to a contract, telephone Electric Ireland Customer Service with those same details, on freephone 1800 372 372.
Let us know if you have further questions before proceeding.
Kind regards,
Una