Use Natural Daylight
Natural daylight has been shown to improve a hotel’s indoor environment while reducing energy use and peak demand. Whenever possible, any lighting renovation should start by using daylighting as much as possible and reducing electric lighting accordingly.
Use Natural Daylight When Staff Are Cleaning Rooms
Educate your housekeeping staff to use natural lighting when making up and cleaning guest rooms, limiting their use of artificial lights.
Use CFL and LED Bulbs
Update lighting with ENERGY STAR®-certified CFL and LED bulbs. In back-room areas, such as kitchens and office space, incandescent and T12 fluorescent lamps can be replaced with CFLs or LEDs and high-performance T8 lamps and electronic ballasts, a combination that can reduce lighting energy consumption by 35 percent. In guest rooms, CFLs and LEDs are becoming the standard for table, floor and reading lamps as well as in bathrooms for recessed and vanity lighting.
Turn Off Lights and Appliances
Housekeepers can turn off guest room lights, televisions, heating or cooling units and radios when rooms are unoccupied.
Use Occupancy Sensors to Control Lighting
For hallways, use a combination of scheduled lighting and dimming plus occupancy-sensor controls after hours. Guests may not like a totally darkened hallway, but dimming lights in unoccupied hallways and stairwells and then turning them up to full brightness when someone enters is a sensible approach. Occupancy sensors are also appropriate for meeting rooms and back rooms.
Use Timers
Install timers on bathroom heat lamps. Also, connect bathroom exhaust fans to light switches to reduce excessive operation.
Lighting Retrofits Save on Energy Costs
Lighting represents almost a quarter of all electricity consumed in a typical hotel, not including its effect on cooling loads. Lighting retrofits can reduce lighting electricity use by 50 percent or more, depending on the starting point, and cut cooling energy requirements by 10 percent to 20 percent as well.
Source: energystar.gov.