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Net-Zero Energy Buildings

Net-Zero Energy Buildings:

A net-zero energy 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.

  • Homes and other structures that create almost as much energy as they use are sometimes called near-zero energy buildings.
  • It is also possible for a building to produce an energy surplus, sending excess back to the electrical grid.
  • Net-zero energy buildings start with energy-conscious design. Many features work without an energy source.
  • In cold climates, south-facing buildings with large expanses of windows on that side can produce 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.

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