The document summarizes energy use studies for 4 households: 1) The John household has 5 members, a programmable thermostat, and appliances always plugged in. The wife is more energy conscious than the husband. 2) The Mike household has 4 members and 3 thermostats, one for each level. They do a lot of laundry and have energy efficient appliances. 3) The Keith household are empty nesters with old and new appliances. The wife unplugs things but always has a TV on. 4) The Jessie and Christian household are students who have differing levels of energy consciousness. Christian has a programmable thermostat but doesn't know how it works fully.