Page 42 - 2011 SDCA Project

7-4 ADDITIONAL SYSTEM LIGHTING RECOMMENDATIONS II. BI-LEVEL SWITCHING
Systems Recommendations Solar power lowers your energy costs by channeling the suns energy. It hedges I. RECREATION CENTER (not all of the lamps are on when the space is occupied) and ocular comfort of occupants.
Recommend using bi-level switching in offices and conference room for energy savings
I.
SUNPOWER SYSTEMS
INTERIOR LIGHTING
against rising utility rates, increasing your energy savings over time, and requires little
EXTERIOR LIGHTING
The existing building has 2’-0” x 4’-0” lighting fixtures that use T12 lamps. These lamps
maintenance. (http://us.sunpowercorp.com) 1-800-786-7693
have been phased out of production at the end of 2010 due to more efficient (T8) lamps
I.
EXTERIOR SOFITS, PHOTOCELL AND TIMERS
replacing them. Recommend replacing the T12 fixtures with fixtures that utilize these T8
Sun Power Systems provide a turnkey product for the Owner. The final installation
The existing recessed lighting in the exterior soffits uses incandescent lamps.
incorporates a flat screen monitor located per the owner request. The monitor offers real
lamps. Recommend providing energy-efficient 28 watt T8 lamps for the fixtures. There
time solar energy collection data at the facilities site. Community center users can get a
LED over other sources; however this cost will be offset by the energy savings of LED as
first hand look at this impressive energy conservation feature. Children will learn more
T8 lamps have the highest luminous efficacy (efficiency of light output to power used).
well as cost of maintenance. LED lamps have the longest life of available sources. The
about energy conservation as they use the interactive monitor to view other energy are 32 watt T8 lamps and 25 watt T8 lamps available on the market; however the 28 watt Recommend replacing this lighting with LED lighting. There is a higher up-front cost for
conservation links. Free site assessment by SunPower Personnel. II. EXIT SIGNS cost to maintain and replace lamps in the high-up, difficult-to-reach soffits make LED’s a
The existing building has incandescent exit signs throughout. These exit signs typically great option for this application. Recommend controlling this lighting by photocell-on
Advantages: use 15 to 25 watts of power each. Recommend replacing these with energy-saving LED and timer-off.
• Reduced energy usage exit signs which use 5 watts per exit sign face.
• Qualify for USGBC LEED point II. POLE LIGHTING
• Installation in new and retrofit situations III. EMERGENCY FIXTURES The existing pole lighting in the parking lot and by the entrances runs during the day,
• Environmentally friendly The existing building has many wall-mounted emergency fixtures. Recommend wasting energy and costing the owner money. Recommend replacing this lighting with
• Interactive monitor for community to learn more about solar power removing these and providing emergency batteries in the lighting fixtures instead. This pole fixtures utilizing metal halide type lamps with electronic ballasts. Recommend
would remove targets for vandalism as well as provide an improved aesthetic for the controlling this lighting by photocell-on and timer-off. Do not recommend using LED
Disadvantages: building. The cost of installation of an emergency battery and an emergency fixture are lighting for this application at this time. LED lighting for wide flood applications is
• May not produce substantial amount of energy approximately equivalent. slightly more efficient than metal halide sources, but not enough to offset the much
• Space required on roof for solar panels higher up front cost.
IV. GYMNASIUM
The existing lighting in the gym appears to be good working condition. Recommend III. MOTION SENSORS
re-using the existing lighting and controls. The exit signs and wall-mounted emergency Recommend using flood lighting controlled by motion sensor for security purposes.
fixtures in the gym, however, appear to be beaten up and should be replaced. When
replacing, recommend installing cages around the new fixtures to protect them from
basketballs.
V. NEW CONFERENCE ROOM
The new conference room will have glazing that will utilize daylight to illuminate the
space. Because daylight is not a consistent source, the conference room lighting fixture
layout should be designed for the worst case scenarios and everything in-between.
Full-service lighting should be provided for when no daylight is available and shades
should be provided for when there is enough daylight to cause glare. A level of control
should be provided for the lighting fixtures to balance out the inconsistent illumination
of the sun. Daylight sensors and full dimming are a sustainable solution for this purpose
but are not recommended due to their very high up-front cost. Instead, recommend
providing bi-level switching to control the lighting fixtures within the space.

INTERIOR LIGHTING CONTROLS
I. OCCUPANCY SENSORS
Recommend utilizing occupancy sensors for energy-savings where possible, including:
o Switch-type passive infrared sensors in small rooms (15’-0” x 20’-0” or smaller)
including offices, small storage, and conference room.
o Ceiling-mounted ultrasonic type in bathrooms.
o Ceiling-mounted passive infrared elsewhere including multi-purpose rooms,
kitchens, and hallways.

Red & Green Scene Volunteer Design Charrette 2010
Plans are conceptual and subject to change