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Case Study: Using the Dent ELITEpro to Measure and Document Energy Savings

This upgrade should save around $7,000 per year…
Written by Bob Dunn, President of I&E Central

See eBook below…
I belong to a church where we recently did a major lighting upgrade.  Old fluorescent and incandescent lights were replaced with LED lighting.  It was a great opportunity to use the Dent ElitePro XC to monitor power consumption before and after the upgrade.  In case you are not familiar with the ElitePro, it is a portable poly-phase power recorder.  Powered by the input voltage connection, it has available current sensors from 5A to 5000A full scale, and enough memory for years of recording.

The Dent ELITEpro as installed, using 3 RoCoil flexible current sensors to measure all three phases.

The church has a 3-phase 240V delta service.  The ElitePro XC was connected at the main service entrance and programmed to record every 15 minutes for exactly 1 week, Midnight Friday to Friday.  Note that its sampling rate is 1/second, so the measured values have revenue grade accuracy.

The initial measurements were taken in late March of this year.  Power consumption was 2981 KWH, the peak demand was 54 KW.

Before lighting upgrade: a view of kW consumption, as measured by the Dent ELITEpro. Note peak demand at 54.
Before lighting upgrade: a view of kW consumption, as measured by the Dent ELITEpro. Note peak demand at 54.

Lighting was upgraded in several stages, the last being completed in late October.  A follow up recording was done for exactly the same time frame during the last week of October.  Power consumption was down to 1588 KW with a peak demand of 21 kW, a reduction of 48%.   Based on the electric rate, this upgrade should save around $7,000 per year.

After lighting upgrade - kW consumption as measured by the Dent ELITEpro. Note reduced overall and peak demand.
After lighting upgrade – kW consumption as measured by the Dent ELITEpro. Note reduced overall and peak demand.

The The Dent ElitePro is an excellent, cost effective tool for measuring and documenting energy consumption.  In addition to what we’ve done here, other common applications include:

  • Energy audits on branch circuits or individual loads.
  • Documenting savings associates with lighting, motor, compressor, or other upgrades
  • Documenting savings associated with compressed air leak audits/repairs
  • Support for energy savings rebate filings
  • Load profiling
  • Sizing studies for backup generators or UPS’s
  • Green energy studies – it can record bi-directionally for solar/wind net metering.

Have questions about the Dent ELITEpro, or want a quote?  Contact us today!


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As an energy manager, you know one of the fastest ways to start saving on building and equipment costs is to perform an energy audit to identify savings opportunities. Unfortunately, that is sometimes easier said than done! Not only do you need to figure out the right metering equipment for your project, the installation itself can by tricky, too.

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