Browse Definitions :
Definition

net-zero energy building

A net-zero energy (NZE) building is one that relies on renewable sources to produce as much energy as it uses, usually as measured over the course of a year. 

Net-zero energy buildings start with energy-conscious design. Many features work without an energy source. For example, in cold climates, south-facing buildings with large expanses of windows on that side can produce well over 50% of their heat through passive solar gain. On the cold north side of the building, smaller windows can angle to wider openings, permitting more light while limiting heat loss. In warmer seasons, passive ventilation systems can pull cool air up from the lower levels and vent it through the building's highest point. Rooftop systems can collect rainwater to reduce usage of treated water. Solar panels, heat recovery systems, geothermal heating and wind turbines are among the other technologies used to achieve net-zero status. 

In reality, however, the net-zero target is challenging. Homes and other structures that create almost as much energy as they use are sometimes called near-zero energy buildings. Nevertheless, it's possible for a building to produce an energy surplus, sending excess back to the electrical grid. Facilities or homes that produce more energy than they use are known as energy-plus buildings.  Buildings that supply all their own energy and are not connected to an external source are described as off the grid.

See also: off-grid data center, net metering, smart grid, smart meter

This was last updated in April 2013
SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
  • threat modeling

    Threat modeling is a procedure for optimizing application, system or business process security by identifying objectives and ...

  • distributed denial-of-service (DDoS) attack

    A distributed denial-of-service (DDoS) attack is one in which multiple compromised computer systems attack a target, such as a ...

  • social engineering

    Social engineering is an attack vector that relies heavily on human interaction and often involves manipulating people into ...

SearchHealthIT
SearchDisasterRecovery
  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

SearchStorage
  • bare-metal cloud

    Bare-metal cloud is a public cloud service that offers dedicated hardware resources without any installed operating systems or ...

  • race condition

    A race condition is an undesirable situation that occurs when a device or system attempts to perform two or more operations at ...

  • storage security

    Storage security is the group of parameters and settings that make storage resources available to authorized users and trusted ...

Close