What
is the Prime Mover Comparison?
The Prime Mover Comparison, otherwise known as Gas versus Electric,
is
an interactive means of comparing the operating cost over a five
year period using an Arrow Gas Engine versus an electric engine.
Prime
Mover Comparison -
program overview
The comparison report that is generated at the end of the program
lists a five year cost comparison of an Arrow Gas Engine with the
equivalent electric motor. In order to determine the electric motor
equivalent of the Arrow Gas Engine you will be prompted to enter
electric motor information. If you do not have this information,
the program can either calculate it or provide default values based
on industry averages. You will be able to override any calculated
or default values as necessary. For more information about the report
screens, see "Report Screens" help section.
Multi-cylinder
engine versus slow-speed engine cost comparison
The
VR 330 multi-cylinder engine is being introduced by Arrow Engine
Company as an alternative pumping engine. The VR 330 engine is capable
of producing 80 HP at continuous duty. It can replace Arrow's larger
and more expensive C-Series and L-Series engines. The VR 330 engine
is an excellent choice for you, if you would like to pay a much
lesser up-front cost. The VR 330 lists for about $12,000.00; while
the C-255 lists at about $28,000.00 and the L-795 lists for about
$43,700.00. While the yearly maintenance costs of maintaining an
aged VR 330 are higher than the C-255 and L-795 costs, the cost
savings of buying the VR 330 will often outweigh the maintenance
cost differences.
Report Screens
5-Year Cash Flow Summary report
This report displays information about the appropriate Arrow
Gas Engine and the equivalent electric motor; the Arrow Gas Engine
list price; electricity and gas usage/costs; a five year cash flow
comparing the operating cost of the Arrow Gas Engine versus the
electric motor; a savings grand total over five years; and payback
in months.
5-Year Cash Flow Detail report
This report displays a yearly detailed line item cost breakdown
for both the Arrow Gas Engine and the electric motor.
5-Year Operating Profit report
While similar to the 5-year cash flow detail report, this report
displays a seven year amortized cost breakdown. The savings are
calculated as additional operating profit over 5 years.
Local
vs. Web based
There are two versions of the Prime Mover Comparison (Gas versus
Electric) program available: a web based version and a downloadable
version that can be used when offline. In both cases, your comparisons
are reserved for you to review and modify at your leisure. When
comparing systems on our web site, you will be required to enter
your e-mail address so that we may retrieve your comparisons.
Disclaimer:
The Prime Mover Comparison program stores your recent comparisons
in a cookie located on your computer. However, Arrow Engine Company
recommends that you print the program's generated reports. Arrow
is not responsible for lost data.
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