For a tenant on a prepayment meter, a top-up that never reaches the meter is more than an inconvenience. It can leave a home without power. Topupmeters builds smart prepay electricity meters for landlords and tenants across the UK and Ireland, and every one of them depends on a connection that holds up wherever the meter is installed. By moving more than 30,000 meters to 1NCE multi-network IoT connectivity, Topupmeters keeps devices online, connectivity costs fixed, and new meters running faster.
Topupmeters Ltd, based in Redhill, UK, runs a smart prepayment system built on its own data collection platform and web portal. The goal is to keep costs and hassle low for landlords while giving tenants a smooth experience and good customer service. Its smart prepay meters communicate over 4G LTE-M and Cat-1 bis, with 2G GPRS as a fallback. Today, more than 30,000 1NCE SIMs connect Topupmeters devices across the UK and Ireland.
Meters are often installed in awkward spots with weak mobile reception. On a standard single-network SIM, one dropped signal means a tenant can't top up instantly. Topupmeters needed seamless roaming across the UK's major networks (O2, Vodafone and EE) on 4G LTE and Cat-1 bis. It also needed a cost model that fit the hardware, since a monthly data contract makes little sense for a device designed to stay on the wall for years.
1NCE multi-network SIMs automatically connect to the strongest local signal instead of relying on a single carrier. That removes blind spots and keeps smart prepay meters online. With the 1NCE, connectivity is paid once for lifetime. There are no monthly data bills, and costs line up with the natural lifespan of the meter.
"We highly value the predictability of treating connectivity as an upfront component cost rather than an ongoing expense," says Dominic Clegg, Managing Director of Topupmeters.
The 1NCE API gives Topupmeters full remote control over its SIMs, plus real-time reporting on SIM activity and network events. A 1NCE webhook pushes that activity straight into the Topupmeters platform, flagging the exact moment a SIM first connects to the network.
"This massively speeds up our device initialization compared to the manual processes we used before." As the fleet grows, 1NCE has also adapted to specific needs, such as blocking particular networks when required.
— Dominic Clegg, Managing Director of Topupmeters.
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