* Equip heating, ventilation and air conditioning systems with night and weekend settings. Offices are often unoccupied on evenings and weekends, and these costs can be reduced by as much as 15 percent.
* Implement a program to retrofit and/or replace existing equipment that is no longer energy efficient. High-speed burners, outside temperature sensors, and flu dampers have very short payback periods.
* Install proper insulation.
* Schedule annual energy efficiency tests.
*Institute periodic scheduled maintenance, including the replacement of air conditioning filters.
*Convert to energy efficient light bulbs and electrical fixtures.