- Home
- Energy management
- Introduction
- Global warming
- Australia's greenhouse gas emissions
- Drivers for change
- Key policy & regulations
- Industry leadership
- Energy management principles
- Energy measurements
- Collecting energy data
- Transmission & distribution loss factors
- Calculating greenhouse gas emissions
- Key energy use areas
- Energy efficient methods
- Safety
- Motors, pumps and fans
- Energy efficient lighting
- Heating, cooling and solar
- Acknowledgements
Gathering or collecting energy data
1. Introduction There are a number of ways to determine the energy that is used in a home, an office, or in a factory (in industry). The simplest method is to rely on the data supplied by the electricity meter. Another method is to analyse the electricity bill provided by the power utility.
2. Electricity metering as a source of data Because there are a wide range of electricity meters, relating a reading to energy usage can be difficult. Three phase metering normally has multiplication factors and/or current transformer ratios that need to be applied to the reading to give energy consumed in kilowatt hours (kWh). |
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Most industrial sites now have ‘smart meters’ that can be used to produce profiles as well as power quality measurements, ie current, power factor, phase balance and voltage logging. Some electricity retailers offer to provide this recorded data as a value added service. It is worth asking if your customer’s power provider can provide this recorded data on a regular basis. |
 A 24 hour load profile supplied by a power utility |
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3. Styles of meters
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