- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 30 Jul 2019
Electrical energy is the term given to energy that has been converted from electric potential energy. This electric potential energy has usually been in turn converted from another source of energy, through a process known as generation.
Electrical power is defined as the rate at which electrical energy is transferred via an electrical circuit over a given amount of time. It is therefore the rate of ‘doing work’. The SI unit of electrical power is the watt, which equates to an energy transfer rate of 1 joule per second.
In the context of buildings, electrical energy is typically converted into other forms of energy, to serve useful purposes such as heating, lighting, motion or other forms of electrical power conversion.
Electrical energy for use in buildings is often supplied via a grid connection, and typically originates at a power station, where it has been generated by electro-mechanical generators. Electrical energy can by generated by many means, such as chemical combustion, nuclear fission, or renewable means such as flowing water, wind, geothermal heat and solar voltaic.
Equally, electrical energy may be generated at the building itself, typically either via solar voltaic, localised electromechanical generators or other renewable sources. Such energy may be used locally within the building or may be exported back into the grid for use by other consumers. Where this latter facility exists, the building and its system are referred to as a ‘prosumer’ – i.e. a simultaneous producer and consumer of electrical energy.
 Related articles on Designing Buildings Wiki
- Articles about electricity.
- Consumer electronics.
- Consumer units.
- ECA articles.
- Electric lock.
- Electric motor.
- Electrical appliance.
- Electrical consumption.
- Electrical equipment.
- Electrical installation.
- Electrical power.
- Electrical safety.
- Electricity bill.
- Electricity supply.
- Glossary of electrical terms.
Featured articles and news
Developments in the Future Homes Standard.
An American chimney feature with a colourful past.
Homes based on need, not ability to pay.
Historic England adds 216 entries to the 'at risk' register.
Will cycling and walking provisions be preserved?
Assembly point levels range from relative to ultimate.
Signs are pointing to a recovery for the construction industry.
Campaigning to change perceptions about American Brutalism.
Sprinkler head configurations can prioritise people or property.
Report from The Carbon Project reveals shortcomings and recommendations.
Advice on how to join the electrotechnical profession.
BREEAM Building Back Better briefing paper provides initial guidance.
CIOB conducts global search for best built environment picture.