How an engineering team at Chevron’s Salt Lake Refinery stood up real-time energy monitoring in under a week, on live, energized equipment, with zero downtime and no batteries.
How an engineering team at Chevron’s Salt Lake Refinery stood up real-time energy monitoring in under a week, on live, energized equipment, with zero downtime and no batteries.
Refineries are among the most energy-intensive facilities on earth, running thousands of motors, pumps, heaters and drives around the clock. Yet for all that complexity, the people responsible for keeping a plant running often have surprisingly little real-time insight into how individual circuits are actually performing. Conventional metering is invasive, expensive and disruptive to install, so most circuits simply go unmonitored.
This case study looks at how an engineering team at Chevron’s Salt Lake Refinery closed that gap. Using Vutility’s HotDrop current sensors and VoltDrop power meters, the team brought five circuits online in under a week, clamping sensors onto live conductors without a shutdown, without batteries, and without pulling new wire. The pilot turned previously invisible loads into a continuous stream of real-time data, laying the groundwork for load profiling, predictive maintenance and measurable energy savings.
In a plant the size of a refinery, energy is both a major operating cost and a leading indicator of equipment health. A motor that begins drawing more current than usual is often the first sign of a developing mechanical problem. A trace-heating circuit left running longer than it needs to be is quietly inflating the energy bill. A variable frequency drive (VFD) that was installed to save power may or may not be delivering the savings it promised, and without measurement, no one can say for sure.
The problem is not a lack of desire to measure. It is that traditional metering is hard to deploy where it is needed most. Installing a conventional meter usually means opening a panel, de-energizing the circuit, wiring in current transformers, and scheduling an electrician and a permit. On a continuously operating refinery, the downtime alone can be a deal-breaker. As a result, monitoring tends to be concentrated at a few major feeds, leaving the long tail of motor and heater circuits dark.
The Salt Lake team wanted granular, circuit-level visibility, but on their terms: no production interruption, no costly rewiring, and no ongoing maintenance burden once the sensors were in place. Specifically, they needed a way to:
Any solution that failed on even one of these fronts would stall before it delivered value.
Vutility’s sensors are built specifically for this kind of deployment. HotDrop current sensors and VoltDrop power meters clip directly onto live conductors. No shutdown, rewiring or panel work is required. In this pilot, five sensors were installed within a week, each one turning a previously dark circuit into a continuous, real-time data stream.
Three design choices made the difference. First, the sensors are self-powered: they harvest energy from the very conductor they monitor, so there are no batteries to install or replace. Second, installation is non-contact and takes minutes per device, which is what made a zero-downtime rollout possible. Third, data travels over LoRaWAN, a long-range, low-power wireless protocol that penetrates the metal enclosures common in industrial plants. Within days, live load data was flowing from the plant floor to the cloud.
Because the sensors install without disturbing the circuit, the pilot moved quickly. A deployment like this typically follows four short phases:
Four engineering decisions are what make a no-downtime industrial deployment practical:
The same architecture spans a family of drop-in sensors, so a monitoring program can grow from a single use case to whole-facility coverage:
A handful of clip-on sensors is only the starting point. The real value is in what the resulting data makes possible:
The same approach that worked on live refinery circuits applies anywhere energy needs to be measured without disruption. Vutility sensors are used across commercial buildings, industrial facilities, cell towers and campgrounds, wherever operators need accurate, granular energy data for cost allocation, sustainability reporting, tenant billing or equipment health. The refinery pilot is a demanding proof point: if the technology can be installed safely and quickly on energized industrial circuits, it can handle almost any environment.
Five sensors. One week. No shutdown.
A monitoring footprint that once required a planned outage now goes live in days, turning live refinery circuits into a continuous source of operational intelligence.
Vutility designs self-powered, wireless energy sensors that make monitoring as simple as clipping a device onto a wire. The HotDrop, VoltDrop and PulseDrop product family brings real-time visibility to electrical, gas and water systems across industrial, commercial and infrastructure environments. There are no shutdowns, batteries or complex installation.
Smarter Energy Starts Here. Engineering Smarter Energy Monitoring.
Learn more at vutility.com
Based on a publicly shared deployment by Ruslan Kaspambayev (Chevron). Technical contributors: Ben Johnson, P.E. and Jason Bohr.
