Lighting Retrofit Project for Tech Park

Case Study: Lighting Retrofit Project for Tech Park

Survey of Tech Park conducted to investigate energy-saving and lighting upgrade opportunities

Most office spaces comprised of 4-Lamp T12 2′-by-4′ lay-in fixtures

Large opportunity for greater energy efficiency
and increased uniformity of lighting levels
Soft buzzing sound in some areas from T12 ballasts that are running out of life
Lamps burned out in various locations
throughout survey
Color rendering varies throughout tenant spaces, due to varying levels of light output

Multiple suites already contain T8 lighting technology, some containing parabolic fixtures

4-Foot 2-Lamp T12 Fixtures located in multiple tenant spaces and restrooms

Parking Lot Lighting has poles ranging from 16.5’ to 22’ in height with metal halide fixtures. Area resurveyed at night to gauge lighting levels

Lighting level is decent, but spotty, due to spread capability of fixtures
Perimeter of Parking Lot is quite dark, as light output only extends to certain zones
Some fixtures not functioning/lamps burned out, creating patches of darkness

Ground-Mounted Fixtures, Wall Packs, and Recessed Fixtures Illuminate walls and nearby areas. Area resurveyed at night to gauge lighting levels

Definite room for improvement of lighting output and spread of light for added security/safety
Varying levels of lighting output from metal halides, due to varying stages of their life cycle

Large energy and maintenance savings are available with conversion to LED technology

First Energy Rebate Paperwork filed
Tech Park Lighting Retrofit Project gains First Energy Rebate Preapproval in the amount of $43,057.40

Interior Retrofit conducted during daytime ‘business’ hours

1,200+ fixtures were retrofitted in just a 3-week time span
4-Lamp T12 Lay-in Fixtures converted to 2-Lamp T8 Lay-in Fixtures with new reflector kits
Energy consumption reduced by ~70%, from 150+ watts per fixture to 47 watts per fixture
Rated life of new T8 lamps is nearly double that of removed T12 lamps, reducing maintenance
T8 lamps maintain stronger lumen output throughout their life, increasing lighting levels
Reducing number of lamps by 50% will reduce materials costs dynamically when new lamps are installed
All new T8 lamps contain 4100 kelvin color temperature
New lighting demonstrates uniform color rendering throughout tenant spaces
Lighting levels and appearance are consistent throughout the facility
All 2-Lamp T12 Fixtures are retrofitted to 2-Lamp T8 fixtures
Lighting output and consistency improves via conversion to T8 Technology
Energy consumption reduced from 72+ watts per fixture down to 47 watts per fixture

LED Technology is selected to replace all metal halide and high pressure sodium fixtures

65%+ energy savings of all retrofitted fixtures
300%+ increase in rated life of LED fixtures, helping to reduce maintenance costs