Guide
LoRaWAN for Submetering
LoRaWAN is the wireless protocol behind many of today's fastest-deploying submetering programs — long-range, low-power, and purpose-built for battery-powered sensors in smart building technology stacks.
What is LoRaWAN?
LoRaWAN (Long Range Wide Area Network) is an open, low-power wireless protocol standardized by the LoRa Alliance. It uses sub-GHz radio (902–928 MHz in North America, 863–870 MHz in Europe) to move small packets of data — typically a few bytes to a few hundred bytes — between battery-powered end-devices and fixed gateways. Because packets are small and infrequent, LoRaWAN sensors routinely run 5–10 years on a single lithium battery while covering ranges no Wi-Fi, Bluetooth, or Zigbee device can match.
For submetering, that combination — long range, no wiring, no batteries to swap for years — makes LoRaWAN the pragmatic choice for retrofit and multi-site deployments where running Modbus, BACnet, or low-voltage wiring to every sensor would blow the budget.
How it works
Long range at low power
LoRaWAN end-devices reach LoRaWAN gateways at ranges of 2–10 km line-of-sight and typically 300–800 m indoors, depending on building construction and gateway placement. That range comes from sub-GHz radios (902–928 MHz in North America) and chirp-spread-spectrum modulation, not from high transmit power — so end-devices can run 5–10 years on a battery.
Star-of-stars network topology
Every end-device transmits to any gateway in range. Gateways backhaul the packets to a LoRaWAN network server (Chirpstack, The Things Stack, or Milesight's built-in server) over Ethernet or cellular, and the network server forwards decoded payloads to PowerRadar, Niagara, or an MQTT/HTTP endpoint.
Battery life measured in years
Because devices sleep between short uplinks (typically every 5–60 minutes), a single AA or C-cell lithium battery can last 5–10 years. That eliminates the need to run 24 VDC or Modbus wiring to every sensor point — a major cost reduction on retrofit and multi-site deployments.
Wireless without Wi-Fi
LoRaWAN runs on unlicensed sub-GHz spectrum, so it doesn't compete with tenant Wi-Fi, doesn't need IT to onboard devices to the corporate SSID, and doesn't consume corporate IP space. That makes it the preferred wireless option in secured, multi-tenant, or air-gapped OT environments.
LoRaWAN vs. wired alternatives
- Retrofit cost: no conduit, no low-voltage cabling, no panel penetrations — install time drops from hours to minutes per point.
- Multi-site rollouts: identical hardware and provisioning workflow across every site, versus per-site wiring engineering.
- Battery-powered pulse and environmental sensors reach points where Modbus or BACnet wiring would be impractical (parking garages, remote pump houses, tenant suites).
- Trade-offs: LoRaWAN payloads are small and uplink intervals are typically minutes-not-seconds, so it is not a substitute for wired revenue-grade meters where sub-minute demand data or ANSI C12.20 accuracy is required.
Practical rule of thumb: use LoRaWAN for pulse counters, environmental sensors, water submeters, and branch-level electric monitoring across retrofit and multi-site portfolios. Keep wired Modbus RTU/TCP or BACnet for utility-boundary revenue-grade meters, central plants, and any point that needs sub-minute demand data or bi-directional control.
Supported brands that ship LoRaWAN hardware
Milesight
LoRaWAN indoor and outdoor gateways (UG56, UG65) plus a wide catalog of battery-powered LoRaWAN end-devices: CT-based electric sensors (CT10x), pulse counters, temperature and humidity (EM300, AM103), CO₂ and IAQ (EM500, AM30xL), leak detection, and door sensors.
Robustel
Industrial LoRaWAN and cellular-backhauled LoRaWAN gateways for hardened outdoor and industrial deployments — pairs well with LoRaWAN meters at sites without existing IT or Ethernet infrastructure.
Next Century
AMR and AMI water submeters with LoRaWAN-compatible pulse and encoded outputs for multifamily and campus tenant billing — a common retrofit path for existing mechanical water meters.
Where LoRaWAN fits in our selection guide
LoRaWAN shows up throughout our meter categories — pulse-meter retrofit, environmental sensors, branch-electric monitoring, and water AMR. Start from the category that matches your project.
Ready to put energy data to work?
Order sensors, bridges, and PowerRadar subscriptions from our store — or talk to a CEM-certified engineer about your project.