If you’ve dealt with prepayment meters in void properties, you’ve probably come across the term ‘RTI code’ — usually at the exact moment something isn’t working. It’s one of those bits of energy-industry jargon that nobody explains, so here’s a plain-English version.
The short answer
RTI stands for Remote Token Injection. An RTI code is a sequence of numbers — a ‘token’ —
that you enter into a prepayment meter to make it do something: clear a debt, reset its settings,
add credit, or change how it’s configured. Think of it as a one-time instruction you type into the
meter’s keypad.
The ‘remote’ part is the important bit. Instead of an engineer physically attending the property to
reconfigure the meter, the supplier can generate a code that does the same job, and that code
can be entered by anyone standing at the meter — a contractor, a housing officer, or a new
tenant.
What RTI codes are used for
In the context of void properties, RTI codes do a few common jobs:
• Clearing debt. If a previous tenant left debt on a prepayment meter, that debt can block
the supply or eat into any credit added. An RTI code can reset the debt to zero so the
meter starts clean for the next tenant.
• Resetting the meter. After a change of tenancy, the meter may need its settings returned
to a default state. An RTI code handles this without an engineer visit.
• Adding emergency credit or initial credit. A code can put credit onto the meter so there’s
power for works or for the new tenant moving in.
• Changing tariff or standing charge settings. Codes can update the rates the meter
applies.
Why they matter for voids
The alternative to an RTI code is an engineer visit, which means a booking, a wait, and a cost.
In a void property, where the goal is to get the home re-let as fast as possible, waiting days for an engineer just to clear old debt off a meter is exactly the kind of delay that pushes void
periods up. RTI codes let you resolve a meter problem the same day, often within hours, by
getting the right code from the supplier and entering it at the meter.
The catch
RTI codes aren’t something you can generate yourself. They come from the energy supplier,
and getting them means knowing which supplier serves the property, having the right account
details, and navigating the supplier’s process to request the code. Codes are also often time-
sensitive or sequence-sensitive — they may need to be entered in a particular order, or within a
window, or they won’t work.
This is where a lot of the friction lives. The code itself is simple to use, but obtaining the correct
code, for the correct meter, from the correct supplier, in the correct sequence, is fiddly — and
it’s why void energy specialists spend so much time on supplier liaison. Get the process right and a prepayment meter that’s blocking a re-let can be cleared and working in an afternoon.
An RTI code is a number you type into a prepayment meter to fix it remotely —
clearing debt, resetting it, or adding credit — without waiting for an engineer.
TSM handles RTI codes and prepayment meter resets across every UK supplier as part of our
void energy service, including supplier liaison and step-by-step guidance for whoever’s applying
the code on site. If prepayment meters are slowing your re-lets, request a callback.