Compressed Air Best Practices - January 2009 - (Page 29)

Focus Industry ENERGY REBATES | 01/09 | Step #6: Calculate total Energy Savings and ROI The total energy savings per year is $29,681. This is the sum of upgrading lights to high-efficiency fixtures ($16,846 savings), using lights only when needed ($5,385) and providing the correct amount of light ($7,450). The costs involved with generating these savings include: A. Materials: the light fixture used to replace the 440-watt metal halide fixture is a T8 6 lamp fluorescent fixture, 32 watts per bulb. The cost is $205.00 USD including the motion sensor, the electrical cord and plug, hangars and safety chain. Calculation: 105 new fixtures x $205.00 = $21,525 for the cost of the project. Labor: In-house labor was used to install the fixtures — no cost. #9 An occupancy sensor can help determine the amount of time lights are on without people in the area. B. In this lighting optimization project, annual energy savings were $29,681 with project costs of $21,525. The simple ROI on the project is 8.7 months. Audits and Surveys Lighting vendors are often willing to help perform your lighting surveys and provide recommendations for a higher efficiency lighting scheme. Be sure to ask them to consider occupancy rates and light intensity levels for different areas. If you receive a quotation for new fixtures I recommend that you request to have the quotation written with line item cost for each type of fixture and sets of fixtures including the current energy usage, proposed energy usage and savings for each. Review the quotation and identify the fixtures, which do not have a good payback and eliminate them from the project. Often this process of elimination will help you to reduce the overall project cost and result in an excellent ROI. Conclusion Reduce energy usage of the lighting systems by providing the correct amount of light at the correct time with efficient fixtures. For more information, please contact Thomas Mort, CEM, Thomas Mort Consulting, tel: 210-858-8454, email: tcmort@savingwithenergy.com, www.savingwithenergy.com www.airbestpractices.com 29 http://www.savingwithenergy.com http://www.airbestpractices.com

Table of Contents Feed for the Digital Edition of Compressed Air Best Practices - January 2009

Compressed Air Best Practices - January 2009 Contents From the Editor Utility-Air News Compressed Air Audit of the Month: A Nitrogen Audit at Boeing Air Standards: New ASME & ISO Standards for Compressed Air System Assessments Energy Rebates Assist Industrial Sustainability Initiatives Seven Sustainability Projects for Industrial Energy Savings: Project #1: Lighting Optimization Minimum Supply Wire Size Recommendations for Compressor Packages Utilizing Variable Frequency Drives The Pneumatic Advantage: Pneumatics Bring Precision and Reliability to Furniture Industry Specialist Personal Productivity: Is Afternoon Fatigue Influencing Your Job Performance? The Explanation and Some Solutions. Resources for Energy Engineers: Training Calendar & Product Picks Wall Street Watch Advertiser Index Classifieds

Compressed Air Best Practices - January 2009

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