Putting things in Perspective

1
Putting things in Perspective
or, Why bother with your Natural Gas Engine?
IM Plan WorkshopJuly 9, 2008
2
Relative Cost per Btu
July, 2008
3
Relative Cost per Btu
(IC Engine Driven HVAC Chiller)
400 Ton Electric Chiller costs 74 per Hour to
operate On-Peak
Gas Chiller cost is 32 to 56 per Hour at all
times
4
Relative Cost per Btu
(IC Engine Prime Mover)
200 HP Electric Motor costs 46 per Hour to
operate On-Peak
Gas Engine cost is 23 per Hour at all times
5
When Do Engines Save Money?
6

• Remember,
• your Gas company Representatives are here to
  help
• Understanding the Regulations
• Developing and Implementing a Long Term Plan.

Steve Rawski Principal Engineer (714)
634-3246 srawski_at_semprautilities.com