2 Terms
Home > Industry/Domain > Energy > Energy efficiency
Energy efficiency
Industry: Energy
Add a new termContributors in Energy efficiency
Energy efficiency
Gigawatt (GW)
Energy; Energy efficiency
A unit of power equal to 1 billion Watts; 1 million kilowatts, or 1,000 megawatts.
Permeance
Energy; Energy efficiency
A unit of measurement for the ability of a material to retard the diffusion of water vapour at 73.4 F (23 C). A perm, short for permeance, is the number of grains of water vapour that pass through a ...
Water wheel
Energy; Energy efficiency
A wheel that is designed to use the weight and/or force of moving water to turn it, primarily to operate machinery or grind grain.
Windmill
Energy; Energy efficiency
A WECS that is used to grind grain, and that typically has a high-solidity rotor; commonly used to refer to all types of WECS.
Parallel connexion
Energy; Energy efficiency
A way of joining photovoltaic cells or modules by connecting positive leads together and negative leads together; such a configuration increases the current, but not the voltage.
Series connexion
Energy; Energy efficiency
A way of joining photovoltaic cells by connecting positive leads to negative leads; such a configuration increases the voltage.
Heat pump water heaters
Energy; Energy efficiency
A water heater that uses electricity to move heat from one place to another instead of generating heat directly.
