Energy Management Guide
As companies weather changing energy demands
and costs, many of their futures will be determined by how they
meet the challenges to become more efficient and productive. A
successful company must have an energy management program to consistently
take advantage of as many conservation opportunities as possible.
Several basic steps are required to develop an effective resource
management program.
-Management Commitment
-Data Analysis
-Analysis of Conservation Opportunities
-Implementation of Conservation Techniques
-Continued feedback and Analysis
The resource management program must have the
commitment of management for it to produce a long term increase
in energy efficiency. A brief, early show of support will only
result in small, temporary improvements. Management must design
the conservation program as part of its regular, overall company
management system. Also, energy costs and the consequence of future
energy shortages should be widely disseminated to create an overall
energy awareness.
Accounting for energy and its cost is an essential
component of any energy management program. It can best be done
by keeping up-to-date bar graphs of energy consumption and associated
costs on a monthly basis. When the utility bills are received
each month it is recommended that the energy use be plotted immediately
on bar graphs. A graph will be required for each type of energy
used. The value of the bar graphs can best be understood by examining
the EXAMPLES
(these include natural gas and oil plots, electrcity, electric
demand, and other energy sources can be exhibited the same way).
It is simple to detect trends and anomalies from these graphs,
and much easier to assess the value of energy conserving actions.
Data analysis will be greatly aided if the
records use a standard format for all the company's divisions
and if the different energy units (such as kilowatt-hours of electricity,
gallons of oil, etc.) are converted to a common energy unit, such
as the British Thermal Unit (Btu). One Btu is the amount of energy
needed to raise the temperature of one pound of water one degree
Fahrenheit. By comparing the cost of various fuels on the basis
of cost per million Btu's ($/MMBtu), the true cost of each fuel
can be determined. The following URL provides a unit conversion
chart for aiding in the input of data.
UNIT
CONVERSION CHART
HTML
Calculator
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Direct conversion factors that may also be required are as follows:
|
ENERGY UNIT
|
CONVERT
|
ENERGY EQUIVALENT
|
|
1 kwh
|
|
3,413 Btu
|
|
1 HP
|
|
2545 Btu/hr or 0.746 kW
|
|
1 Therm
|
|
100,000 Btu
|
|
1 CCF Natural Gas
|
|
100,000 Btu
|
|
1 Gallon #2 Oil
|
|
140,000 Btu
|
|
1 Gallon #4 Oil
|
|
144,000 Btu
|
|
1 Gallon #6 Oil
|
|
152,000 Btu
|
|
1 Gallon Propane
|
|
91,600 Btu
|
|
1 Ton Coal
|
|
27,800,000 Btu
|
|
1 Ton Refrigeration
|
|
12,000 Btu
|
|
1 Boiler Horsepower
|
|
33,475 Btu
|
*Note: Varies slightly with supplier.
|