Smart energy
sub-meters
Connected sub-meters designed to a Class 1 accuracy target, reporting over cellular or Wi-Fi into RIOD Live or your own platform. Built to your order, under your brand, or licensed for your own production.
WHY SUB-METER
The main meter tells you the total. Decisions happen one circuit down
A building or factory usually has one revenue meter and a stack of questions it cannot answer. Which tenant used what. Which chiller runs through the night. Whether a production line draws power while it stands idle. Each of those needs a meter on the circuit itself, with its readings in a system someone looks at.
Many sites already have panel meters, but their readings stay on a small display inside a locked panel. Reading them by hand once a month gives one figure a month and hides the daily pattern. A connected sub-meter sends readings on a schedule, so consumption can be compared by hour, by shift and by tenant.
Our sub-meters are designed for that job: measure at the point of use, report securely to the cloud, and produce reports that hold up when a tenant or an auditor asks how a figure was reached.
HOW IT IS BUILT
Metering hardware shaped to your project
Class 1 accuracy target
The metering design targets Class 1 accuracy. Where a market needs formal approval, for example for tenant billing, we certify to the metrology standard you name as part of the project.
Cellular or Wi-Fi
Each meter reports over a cellular link or the site Wi-Fi, whichever reaches the panel room. We check coverage at the panels during deployment planning, because electrical rooms are often where signal is weakest.
Sized to the load
Phase arrangement and current sensing are chosen per circuit during the site survey, so a small lighting feeder and a large chiller supply are each metered correctly.
Your brand or your factory
Meters can carry your logo and labels from 100 units, be customised for an OEM product, or be licensed through technology transfer so you build them yourself while RNDSquare keeps the underlying IP.
FROM THE FIELD
Where energy data has paid back
Taj Hotels
Power and status monitoring on chillers and AC units gave the engineering team live downtime and a record of maintenance response time.
Machinery energy metering
Energy measured per machine in a production environment, so consumption could be tied to equipment rather than spread across the site bill.
AT A GLANCE
Smart sub-meter overview
- Accuracy
- Designed to a Class 1 accuracy target. Certification to your target standard planned into the project
- Metering configuration
- Phase arrangement and current sensing selected per circuit during the site survey
- Connectivity
- Cellular or Wi-Fi, with MQTT over TLS 1.2
- Where data goes
- RIOD Live, your own server, or your energy or billing system through an API
- Reports
- Audit trail, PDF and Excel export, AI access through MCP
- Power and enclosure
- 12 V adapter or battery options. Plastic, metal or custom enclosure
- Commercial models
- Built to order, white-label from 100 units, or licensed technology transfer
APPLICATIONS
Where the sub-meters are applied
- Factory machine energy monitoring
- Production line energy monitoring
- Commercial tenant sub-metering
- Shopping mall energy monitoring
- Hotel energy monitoring
- Hospital energy monitoring
- School and university campus metering
- Office building energy metering
- Data centre power metering
- HVAC energy consumption monitoring
- Pump and motor power monitoring
- Compressed air system energy monitoring
- Generator electrical monitoring
- Solar PV AC generation monitoring
- Battery storage AC interface metering
- EV charger energy sub-metering
- Retail chain energy benchmarking
- Industrial energy audit data collection
- Utility distribution feeder monitoring
- Equipment standby power monitoring
GUIDES
Application guides
- Factory machine energy monitoring
- Production line energy monitoring
- Commercial tenant sub-metering
- Shopping mall energy monitoring
- Hotel energy monitoring
- Hospital energy monitoring
- School and university campus metering
- Office building energy metering
- Data centre power metering
- HVAC energy monitoring
- Pump and motor power monitoring
- Compressed air energy monitoring
- Generator electrical monitoring
- Solar PV AC generation monitoring
- Battery storage AC metering
- EV charger energy sub-metering
- Retail chain energy benchmarking
- Energy audit data collection
- Distribution feeder monitoring
- Standby power monitoring
FAQ
Questions buyers ask us
Can a smart energy sub-meter be used for tenant billing?
Sub-meter data is widely used to allocate energy costs between tenants. Where billing must meet legal metrology rules, the meter needs approval in that market. Our meters are designed to a Class 1 accuracy target, and we carry out certification to the standard you name as part of the project.
How do connected energy sub-meters send their readings?
Our sub-meters report over cellular or Wi-Fi using MQTT over TLS 1.2. Readings go to RIOD Live or to your own server, and can be passed on to an energy management or billing system through an API.
What if our building already has Modbus energy meters?
Existing Modbus meters stay in place. Our RS485 Modbus IoT gateway reads them and sends their values to the same platform. New sub-meters go where there is no meter yet, and both appear side by side in the reports.
Can we sell the energy meter under our own brand?
Yes. White-label supply starts at 100 units with your logo and labels, taking about four weeks, or about six weeks for 1,000. The design is also available through paid, licensed technology transfer, with RNDSquare retaining the underlying IP.
Planning a sub-metering project?
Tell us the circuits or tenants to meter, the meters already installed and your target market. We will propose the metering setup and the certification route.