Glossary
- Load: the electrical energy that is consumed by a component, circuit, device, piece of
equipment, or system that is connected to a source of electric power, in order to perform its functions.
It is also called “electric load.”
- Load Profile: a graph of the variation in the electrical load versus time.
- Load Factor: the ratio of the average load over a designated period of time to the
peak load occurring in that period.
- Load Duration Curve: a load duration curve illustrates the variation of a
certain load in a downward form such that the greatest load is plotted in the left and the smallest one
in the right. It illustrates the relationship between capacity requirements and capacity
utilization.
- Demand: measured in kilowatts (KW) is the rate at which electricity is used at any
one given time. For more information download our Demand fact sheet .
- kWh: a unit of energy, equivalent to the energy transferred or expended in one hour
by one kilowatt of power. The term kilowatt-hour (kwh) refers to the quantity of energy used.
- Register Reads: register reads are meter readings.
- Green Button: Green Button is an industry-led effort to provide electricity customers
with easy access to their energy usage data in a consumer-friendly and computer-friendly
format. The Green Button in the trending report will export an XML file that can be used to send
data to a third party. The Excel link will allow you to download your electricity usage or demand
data into a spreadsheet.
- Heating and Cooling Degree Days: a way to relate each day's temperatures to the
demand for fuel to heat buildings.
- To calculate the heating degree days for a particular day, find the day's average temperature by adding the day's high and low temperatures and piding by two. If the number is above 65, there are no heating degree days that day. If the number is less than 65, subtract it from 65 to find the number of heating degree days.
- For example, if the day's high temperature is 60 and the low is 40, the average temperature
is 50 degrees. 65 minus 50 is 15 heating degree days. Cooling degree days are also based
on the day's average minus 65. They relate the day's temperature to the energy demands
of air conditioning. For example, if the day's high is 90 and the day's low is 70, the
day's average is 80. 80 minus 65 is 15 cooling degree days.
- Trend Interval: choose the level of interval in which you would like to create the
Trending Report. You may choose to view intervals in hours, days or metered. Metered
refers to the length of the interval that is recorded by your meter. Demand meters record readings
in 15-minute increments. kWh meters record meter readings every hour. If you choose
“metered”, it will present data in the small increment that your meter records.
- Time Stamp: each time your meter records a meter reading, it records the time stamp for the meter reading.
Nodo: liferay-2:8080