A propane delivery driver covers a 200-mile daily route. The route was built from customer contracts, historical consumption averages, and call-ins from customers who noticed they were running low. On a typical day, 3–4 of the stops have tanks at more than 70% fill — stops that were not needed but were scheduled anyway. Meanwhile, two customers will call in a runout complaint by end of day because they were not on the schedule.
This is the operational reality of propane distribution without real-time tank level data. Routes are educated guesses. Deliveries are calendar-driven, not consumption-driven. Runouts happen to customers who forget to call. Unnecessary deliveries waste driver time and fuel.
LoRaWAN tank monitoring through IoT SimpleLink and VX-Olympus changes the inputs: every tank in the service territory has a current level reading, updated every 15 minutes. The delivery schedule is built from actual consumption data, not historical averages. Runout risk alerts fire before the customer calls.
Why LoRaWAN for Rural Propane Tank Monitoring
The rural propane distribution territory is defined by exactly the conditions that make LoRaWAN the right connectivity choice:
Spread-out deployment: Tanks distributed across farmsteads, rural residences, and commercial properties spread over hundreds of square miles. No infrastructure for wire-based or Wi-Fi connectivity.
Battery-only power: Most remote tank locations have no convenient power source for a continuously powered sensor. A sensor that needs annual battery replacement at 500 customer locations is a logistics burden. Class A LoRaWAN sensors reporting every 15 minutes run 3–5 years on primary lithium batteries.
Cost per endpoint: A cellular data plan per tank at $2–$5 per month for 500 tanks costs $12,000–$30,000 per year. A LoRaWAN network with 5–8 gateways covering the service territory costs $1,500–$4,000 in gateway hardware — and serves all 500 tanks indefinitely.
Coverage: A LoRaWAN gateway mounted on a grain elevator, a water tower, or any elevated rural structure covers 10–15 kilometers in open terrain. A propane distributor serving a county-level territory can cover the entire service area with 3–6 gateways.
Tank Level Monitoring Technology
Ultrasonic Level Sensors
Ultrasonic sensors mount externally on the tank — no tank penetration, no permit requirements. The sensor transmits an ultrasonic pulse through the tank wall and measures the time-of-flight return from the liquid surface inside. Level is calculated from the measured distance.
Ultrasonic sensors work well on above-ground propane tanks (most residential and small commercial installations). Installation requires:
- Cleaning the tank surface at the mounting point
- Attaching the sensor with a mounting bracket
- Pairing the sensor to the IoT SimpleLink network
No propane system modification. No tank entry. A technician can install a sensor on a residential tank in under 20 minutes.
Float and Pressure-Based Level Indicators
For tanks with existing mechanical level gauges (the standard float-type dial gauge on a residential propane tank), an IoT transducer can monitor the mechanical gauge position and transmit the reading without modifying the tank hardware. These transducers attach to the existing gauge stem and measure the gauge pointer position.
For large commercial and industrial tanks with existing pressure-based level measurement, VX-Olympus reads the existing level transmitter signal via 4–20mA input on an industrial IoT interface — connecting the existing measurement without replacing it.
What VX-Olympus Does With Tank Level Data
Real-Time Level Dashboard
The distributor’s operations team has a dashboard showing every tank in the territory:
- Territory map: Each customer location as a pin. Color indicates current fill status — green (above 30%), amber (20–30%), red (below 20%).
- Sorted list view: Tanks sorted by current level percentage, lowest first. The tanks approaching empty surface to the top.
- Consumption rate analysis: Based on the rate of level decrease over the past 7 days, VX-Olympus calculates estimated days to empty for each tank. Tanks with less than N days to empty at current consumption rate flag for delivery scheduling.
The operations team knows the priority delivery list before the driver starts their day — not after a round of customer calls.
Reorder Alert Tiers
VX-Olympus alert thresholds are set per customer or per tank type:
- Reorder alert (30% fill): Delivery should be scheduled. Not urgent — allows 3–7 days of scheduling flexibility in most consumption patterns.
- Priority delivery alert (20% fill): Schedule within 48 hours. Consumption rate may vary; this tank needs a delivery before it reaches the runout threshold.
- Critical alert (15% fill): Immediate scheduling required. At current consumption rate, this tank is within 24–48 hours of runout.
- Runout risk alert (based on days-to-empty calculation): If current consumption rate projects runout within 24 hours regardless of current fill percentage, immediate alert.
Alert routing:
- Reorder and priority alerts go to the dispatcher
- Critical and runout risk alerts go to the dispatcher AND the driver assigned to that territory
Delivery Route Optimization
The delivery route for each driver is no longer built from a calendar. It is built from the current delivery queue:
- Tanks at critical or priority alert status are scheduled first
- The routing algorithm (or the dispatcher) sequences stops geographically to minimize driver miles
- Tanks at reorder alert status fill the remaining route capacity
- Full tanks are not scheduled
The result: every delivery is to a tank that needs it. Driver miles per gallon delivered increase. Fuel cost per delivery drops. Customer runouts drop to near zero.
Multi-Driver and Multi-Territory Management
VX-Olympus multi-tenant architecture supports distributors operating multiple service territories:
- Each driver or territory has their own view — only their customer tanks
- District management sees all territories in aggregate
- Dispatch sees all territories for routing and emergency reallocation
- Corporate operations sees the full fleet metrics — gallons delivered per driver, average fill at delivery, runout incidents by territory
For distributors with multiple branch locations serving overlapping territories, VX-Olympus cross-tenant visibility lets corporate operations rebalance drivers between branches when demand spikes in one area.
Integration With Dispatch and Billing Systems
VX-Olympus alert data integrates with propane distributor dispatch and billing workflows:
Dispatch integration: When a reorder alert fires, VX-Olympus can automatically create a delivery order in the distributor’s dispatch system via API webhook. The dispatcher reviews and confirms the order — the alert creation is automated, the dispatch decision is human.
Billing integration: Delivery volume (measured by the driver’s meter, not the tank level change) is the billing basis. Tank level data provides verification — pre-delivery level and post-delivery level, combined with the known tank capacity, gives a calculated delivery volume that can be compared to the meter reading.
Customer portal: Distributors who want to offer a customer-facing portal can white-label VX-Olympus — customers see their own tank level, their recent delivery history, and can request a delivery through the portal. The white-label model keeps the distributor’s brand front and center.
Network Design for Rural Propane Operations
A propane distributor’s LoRaWAN network covers the full service territory:
Gateway placement strategy:
- Grain elevators, water towers, cell towers, and elevated commercial buildings at key points in the territory
- Each gateway covers 8–15 km radius in open terrain
- Target: 98%+ of customer tank locations within coverage of at least 2 gateways (redundancy for reliability)
IoT SimpleLink gateway management: All gateways are provisioned in IoT SimpleLink and monitored centrally. If a gateway goes offline (power outage, hardware failure), tanks in its coverage area that are not covered by a second gateway lose connectivity — IoT SimpleLink alerts the distributor’s team to the coverage gap.
Rollout approach: Start with the highest-consumption customers and the most runout-prone areas. Deploy sensors and gateways there first. Expand coverage as the operational benefits justify additional gateway investment.
The Outcome
Propane distribution without tank level monitoring is demand forecasting based on history. Tank monitoring is demand management based on reality. LoRaWAN makes the economics work at rural scale.
Talk to our team about a propane tank monitoring deployment sized to your service territory and customer count.