ADVANTAGE, ALTERNATIVE, BACKDROP, BACKGROUND, BENEFIT, BEROLD, BUILDING, CERTIFICATE, CERTIFIED, CONSERVATION, CONSUMPTION, COOLING, COSTS, DOCUMENT, DRAWING, ECO, ECOLOGICAL, ECONOMY, EFFECTIVE, EFFECTIVENESS, EFFICIENCY, EFFICIENT, ELECTRIC, ELECTRICITY, ENERGY, ENHANCE, ENVIROMENT, ENVIRONMENT, FINANCE, GEOTHERMAL, GLOBAL, GREEN, HAND, HEAT, HEATING, HOME, HOUSE, HOUSEHOLD, ILLUMINATION, IMPROVE, IMPROVEMENT, INSTRUMENT, KWH, LIGHTING, MANAGEMENT, MEASURE, MEASURED, METHOD, PASSIVE, POWER, RANDOLF, REDUCE, REDUCTION, RENEWABLE, RESOURCE, RESOURCES, SAVE, SAVING, SAVINGS, SOLAR, SURED, TECHNOLOGY, TEXT, THUMB, THUMBS, WARMING, WARMTH, WHITE, WORD,