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Install “occupant sensors” to automatically turn lights off and on.

Remove or disconnect unnecessary light fixtures.

Implement a regular lighting maintenance program.

Install LED exit signs.

Remove unnecessary lamps (de-lamp) in overlit areas. Check your light levels against standards from the Illuminating Engineering Society (IES) to see if you have areas that are over- or under-lit.

Install timers or photocells on outside lights.

Replace incandescent light bulbs with LEDs.

Maximize daylighting. After all, sunlight is free! Open or close blinds to make the best use of natural daylight and take advantage of skylights or other natural daylight sources to reduce lighting during daytime hours.

Replace or retrofit non-energy efficient light fixtures.

Use shades and blinds to control direct sun through windows in both summer and winter to prevent or encourage heat gain.

Turn off lights when not in use or when natural daylight is sufficient. This can reduce lighting expenses by 10% – 40%.

Lower light levels, where appropriate, such as around computer monitors.

Use task lighting where feasible.

Set your water heater at the lowest required temperature.

Insulate hot water holding tanks and hot & cold water pipes.

Install faucet aerators and efficient showerheads.

Use hot water wisely.

Find and fix water leaks.