Dear Virgil:
The lighting retrofit you installed in our warehouse has improved the quality and level of light. The results were immediately seen. The energy-efficient fluorescent high bay fixtures you installed in 400,000 square feet of warehouse have prompted many positive comments from my staff. They stated that the light level is noticeably brighter. The buzzing noise from the old system is gone.
With the reduced wattage per fixture and occupancy sensors, the electrical savings is significant. It is good to see the lower electrical bill every month while having better light.
We have used Heritage Electric for over 15 years. Your service is excellent. You and your staff always follow up and communicate to me the job progress.
Finally, I would like to commend your electricians for the fine job that they did. They were courteous, coordinated with my employees to minimize disruption, and cleaned up after themselves.
We look forward to working with you in the future on other projects.
Sincerely,
Hal Marshall
General Manager
Colorado Trade Center
Lea Morse – Facility Manager
Prior to the lighting retrofit the lighting in our building was a mess! Employees and tenants often complained about their lights flickering or burned out. Others were concerned about the quality of the light. The building had a variety of different lamps and bulbs, which was cumbersome to manage.
Heritage Electric analyzed our building, made recommendations, and installed some samples for everyone to see and evaluate. The lighting in the common areas and offices is now much improved. The project was completed with zero complaints. I’ve heard nothing but compliments and positive feedback about the improved lighting in the halls and offices.
Variable Frequency Drives (VFD) were installed on the ventilation motors a few weeks after the lighting retrofit.
Case Study - Office Building
Combined lighting and VFD (variable frequency drive) electricity savings:
Feb 2008
764 kWh/day
Mar 2008
822 kWh/day
Feb 2009
604 kWh/day
Mar 2009
502 kWh/day
20.9% savings that month 
38.9% savings that month
Apr 2008
859 kWh/day
May 2008
822 kWh/day
Apr 2009
500 kWh/day
May 2009
502 kWh/day
41.8% savings that month
47.9% savings that month

"A Customer is the most important entity of our business. They are not dependent upon us... we are dependent upon them. They are not an outsider in our business... they are part of it. We are not doing them a favor by serving them... they are doing us a favor by giving us the opportunity to do so."