Meet the energy logger designed for you
Over time, HVAC systems can become inefficient. Energy logging at the biggest loads can help identify wasted energy and potential savings.
Most HVAC professionals understand that energy is wasted by inefficient systems or by operating non-critical loads at peak utility rate periods. The questions aren’t whether, but how much, energy is going to waste, where, and at what cost?
Whether you’re an outside contractor submitting bids to building operators, or the building operator, power and energy logging can help you answer these questions about energy efficiency and how ROI is affected.
In the past, getting an accurate picture of energy use was complex and costly. You could use a low-end general-purpose logger but you wouldn’t get accurate results. Or you could use an expensive power quality analyzer that required an engineer with advanced training. The Fluke 1730/Basic Three-Phase Energy Logger provides a new solution. It’s optimized for energy logging in industrial plants and commercial/institutional buildings by licensed electrical professionals.
Three reasons to log power and energy use
1. Manage energy costs and realize savings opportunities
While energy expenditures are a significant portion of overall operational cost, many companies don’t really know where their energy dollars are being spent, since all they get is one overall monthly bill, with no indication of whether that use was standard or excessive compared to operations that month.
By logging power use at the main service entrance and then at large loads and secondary supplies, facilities can see how much power is being used when, by what, and at what hourly cost. Without fail, the data will turn up several energy wastes that can be rectified by operational changes alone, such as turning off certain loads, reducing loads during peak rate periods, or adjusting the schedule so that loads operate during non-peak rate periods.
2. Rebates and financial incentives
Utility companies offer incentives and rebates as a way to encourage their customers to decrease energy use. The goal is to serve more customers with the same existing power supply, since building new power generation plants is prohibitive. Many incentives and rebates are available for retrofitting existing buildings, for example with energy-efficient lighting and high-efficiency motors, as well as by replacing motor starters with variable frequency drives.
To receive the financial incentive, the utility company will often require verification of the energy use—an ideal scenario for a load study. A pre-retrofit load study will document the existing energy use to provide baseline data, while a post-retrofit load study verifies the energy savings achieved upon completion of the modifications.
3. Accuracy of electrical bill
Owners of large and medium-sized facilities often install electrical submetering to bill tenants for their specific electricity usage. However, these submeters are commonly installed improperly, putting that billing into question. Installation issues vary, and include current transducers installed backward, current transducers on the wrong phase, and errors in configuring the submeter.
A good business practice is to double-check the reading with a portable energy logger. Logger data provides a rough order of magnitude comparison of what is being billed versus what is actually used. A significant deviation between the amount charged for electricity usage and the logger data would signal the need to investigate the submeter setup.
Not just another energy logger
The Fluke 1730 Three-Phase Energy Logger not only provides professional-level data measuring; it gives you those capabilities in an intuitive, easy-to-use, very portable tool that:
You can use the 1730 to discover hidden energy waste in lighting and air conditioning systems, and in other large loads that you may be able to switch off when not in use.