Using Data Loggers for Energy Management and Indoor Air Quality

Low-cost data loggers can provide information to save thousands of dollars in energy costs, while helping ensure that indoor air quality and comfort are maintained throughout a facility. By monitoring and recording simple variables like temperature, RH, CO2, and light or motor On/Off, data loggers can help detect and document whether “too hot or too cold” comfort complaint conditions are real, whether your facility is threatened by conditions suitable for mold growth, and whether energy savings can be realized through ensuring that lights are off when areas

of the building are unoccupied. More sophisticated measurements – such as AC Current, AC Voltage, power demand (kW), energy consumption (kWh), pressure, and differential air pressures – provide valuable information for troubleshooting HVAC/R systems, sub-metering, building commissioning, and Measurement & Verification of energy savings.

This paper will present case studies and demonstrate how low-cost data loggers are used throughout buildings to identify opportunities for energy savings and to document when those savings have been effectuated, while maintaining conditions that contribute