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Integrated Office Lighting System (IOLS) |
The Integrated Office Lighting System (IOLS) is a total systems approach to reducing the billions of kilowatt hours (kWh) consumed annually by office lighting. Title 24 (2008) energy code is expected to reduce the maximum allowable power density to as low as 0.85 W/ft2. The majority of the lighting is provided by overhead troffers or pendents. Appropriately achieving a significant energy savings requires the overhead lighting load to be reduced without allowing user comfort and visual acuity to suffer. This is made possible by incorporating high quality, efficient task lighting. One possible component of the IOLS approach is the Personal Lighting System (PLS), an LED task light that was developed jointly by Finelite, Inc. and California Lighting Technology Center (CLTC).
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| IOLS in an office setting |
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Personal Lighting System |
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Office of the Future demonstration at CLTC with IOLS |
OBJECTIVE: To gather feedback and validate onsite performance of a task lighting
APPLICATIONS:
- Commercial offices
- Residential offices
DESCRIPTION / FEATURES:
- Energy savings: 50% annual energy savings; over 15 years, one system can yield savings of 7,500 kWh
- Cost-effective replacement for many office applications
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DEMONSTRATION LOCATION:
Bateson Building
Sacramento, CA
Performance results/energy savings:
44% savings compared to standard T8 office systems
~2,700 kWh savings per year
Date of Install: Winter 2007
Timeframe of testing/evaluation: Spring / Summer 2007
Partners: Bateson Building, Finelite, Inc.
Sponsors: California Energy Commission
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DEMONSTRATION LOCATION:
Butte College
Facilities Building
Performance results/energy savings:
68% savings compared to standard T8 office systems
~2,500 kWh savings per year
Date of Install: Summer 2007
Timeframe of testing/evaluation: Fall / Winter 2007
Partners: California Community Colleges, Finelite, Inc.
Sponsors: California Energy Commission
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DEMONSTRATION LOCATION:
Cal Poly San Luis Obispo
Facility Services
Performance results/energy savings:
35% - 64% savings compared to older T8 troffers and task lighting
~3,000 kWh savings per year
Date of Install: Summer 2008
Timeframe of testing/evaluation: Summer 2008
Partners: Finelite, Inc., California State University
Sponsors: California Energy Commission
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DEMONSTRATION LOCATION:
Department of Motor Vehicles
Sacramento, CA
Performance results/energy savings:
25% savings compared to standard T8 office systems
~1,500 kWh savings per year
Date of Install: Winter 2007
Timeframe of testing/evaluation: Spring / Summer 2007
Partners: Department of Motor Vehicles, Finelite, Inc.
Sponsors: California Energy Commission |
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DEMONSTRATION LOCATION:
Gexpro
Hayward, CA
Performance results/energy savings:
59% savings compared to standard T8 office systems
~5,000 kWh savings per year
Date of Install: Winter 2007
Timeframe of testing/evaluation: Spring / Summer 2007
Partners: Finelite, Inc., Gexpro
Sponsors: California Energy Commission
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DEMONSTRATION LOCATION:
University of California, Santa Barbara
Phelps Hall
Performance results/energy savings: 40%
Date of Install: Winter 2007
Timeframe of testing/evaluation: Winter 2007
Partners: Finelite, Inc., University of California
Sponsors: California Energy Commission
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RESULTS:
- Cost effective for many retrofit, remodeling, and new construction applications
- Best retrofit paybacks result when T12's are replaced with T8, total lamp quantity is reduced, and users employ task lighting frequently
- Able to achieve lighting power density below the new Title 24 2008 requirements
- Improved lighting quality, easy to install, creates a personal workspace in open office areas
STATUS: The University of California/California State University (UC/CSU) and Investor-Owned Utility (IOU) Partnership Program has identified incentives for this technology that range from $60 to $80 per fixture. The task fixtures are currently available from Finelite, Inc. and include multiple options such as wattage and mounting type. There are multiple fixture types in the series.
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Projects 
