A 25-30% improvement then, is very feasible (see white roofs) ??? Smart Grids??? and LEDs can reduce energy consumption, BUT so can dimmers; 5% drop is an amount imperceptible to the eye; Energy dashboards can provide real-time information on energy use, but an adjustable thermostat could keep you from getting overheated by the bill; triple-pane windows and solar reflective films are great, but op