holiday lights and energy use

By Josh Filler, Vice President & Chief Operating Officer - Electric Operations

Holiday lights are one of the most visible, colorful and beautiful aspects of the season. Have you ever wondered how much that bright display adds to your energy bill each year? There are a number of lighting technologies available. Comparing their operating costs can help you decide which option is best for decorating your facility or home.

Holiday lighting options

Three lighting types commonly used in holiday displays include C-bulbs, miniature lights and LEDs.

• C-bulbs.These traditional incandescent bulbs are bright and highly visible. C7 and C9 types are available. C9 bulbs are larger and draw slightly more power.

• Minilights.Mini lights use far less energy than C-bulbs and have become exceedingly popular. The main advantages of mini lights are their low energy use and low cost, although they are not very durable.

• LEDs. LEDs are long-lasting and highly energy efficient. Made from solid-state materials, these bulbs are safer and more durable than C-bulbs and miniature lights.

Comparing energy costs

How much does each lighting option cost to operate? The following compares the power draw (in wattage) and the monthly operating cost of a typical display. These calculations are based on a lighting display using 2,000 bulbs (80 strings for C7 and C9, 40 strings of mini lights and LEDs) and operating for five hours per day at an electric rate of 13 cents per kilowatt hour (kWh).

• C9 bulbs (7 watts) — $273 a month

• C7 bulbs (5 watts) — $195 a month

• Mini lights (0.4 watts) — $16 a month

• LEDs (0.07 watts) — $2.75 a month

Due to their energy efficiency and durability, LEDs are quickly becoming the decorating option of choice. Although LED lights are more expensive to purchase, they use up to 80% less energy than traditional lights and have a longer lifespan. LEDs are also cool to the touch, reducing the risk of fire.

Planning ahead for savings

Although energy-efficient lighting provides a great alternative, planning and conservation can optimize savings. There is no need to light up your entire facility or home; a lighting design that makes good use of available space and includes a mix of colors will draw attention.

A 24-hour display is not necessary, either. Turn off lights late at night. Timers can automate this process and maximize energy savings. With a little forethought, your holiday display can make your facility or home shine without a big increase

Lighting Safety Tips

Holiday lights can add to your seasonal displays and celebrations, but they can also be a safety hazard if not properly maintained or displayed. The following tips can help keep your family happy and safe this holiday season.

• Before hanging your lights, inspect them for frayed wires, broken sockets or other signs of wear and tear.

• Avoid connecting more than three strings of lights together, unless the directions indicate otherwise.

• When using extension cords, avoid routing them under rugs or near walkways.

• If you choose an artificial tree, make sure it's certified as fire resistant. Look for the UL label.

• For outdoor decorating, only use lights and power strips that have been approved for outdoor use.

• Keep electrical connections off the ground and make sure wiring is clear of downspouts, railings and aluminum siding.

• Fasten holiday lights securely to buildings, trees and other outdoor surfaces to prevent damage from wind or jostling.

• Avoid using metal staples or nails as fasteners. They can damage the protective insulation covering the wires.