Definitions - v

Smart grid is an umbrella term to describe new energy grid technologies that provide utilities, grid operators, and energy consumers with real time information on energy use and the ability to automatically manage energy supply and demand.

For example, advanced smart grids allow energy firms to reduce demand on the grid by automatically turning off non-essential appliances, such as washing machines or electric car rechargers, during periods of peak demand.

The technology also provides energy users with real time information on how much power being used at a given time, and enables grid operators to more easily draw on energy from micro-generation technologies, such as solar panels or small wind turbines.

Also known as the "energy internet", smart grids are regarded as essential to improving energy efficiency and supporting the roll out of electric cars and micro-generation technologies.

The process where worms feed slowly on decomposing materials (e.g. vegetable scraps) in a controlled environment to produce nutrient-rich soil.

A wind generator design where the rotating shaft is perpendicular to the ground, and the cups or blades rotate parallel to the ground.

A wind turbine with the axis or main shaft mounted vertically, or perpendicular to the earth's surface. This type of turbine does not need to be turned to face the wind - the wind always blows across it. Types include Savonius and Darrius.

The evolution of a new species from a group separated from the original species by a geographic barrier.

Rain which fall in the sky but evaporates before it reaches the ground.

A Passive House is a house designed to use Passive Solar Design principals to drastically reduce its energy demands by making full use of the energy supplied by the Sun, this thereby reduces ecological footprint of the building.

Virgin paper is paper that contains no recycled content and is made directly from the pulp of trees or, alternatively, cotton.

A Passive House is a house designed to use Passive Solar Design principals to drastically reduce its energy demands by making full use of the energy supplied by the Sun, this thereby reduces ecological footprint of the building.

The voltage lost along a length of wire or a conductor due to the internal resistance of that conductor. The voltage drop is calculated using Ohms Law.