This glossary includes more than 300 solar terms, as well as hundreds of additional sustainable design and construction terms.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z AllDefinition: One of two (Btu is the other) standard units of measure (SI system) for the amount of energy that is consumed by equipment, the amount of embodied energy, or the amount of energy moved from one location to another. It is also the standard unit of measure for electrical use. The term 'kWh' stands for "kilowatt-hour" or 1,000 watt-hours. The term 'MWh' stands for "Megawatt-hours" or 1,000,000 watt-hours. One watt-hour is equal to 3.413 Btu.