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Encyclopedia > Off the grid

The term off the grid refers to a method of construction that relies on renewable energy sources rather than traditional public utility sources provided by the utility "grid." In such construction, the home or building constructed does not rely on municipal water supply, sewer, gas, electrical or similar utility services. A true "off the grid" house is able to operate completely independent of traditional of public utility services. Renewable energy (sources) or RES capture their energy from existing flows of energy, from on-going natural processes, such as sunshine, wind, flowing water, biological processes, and geothermal heat flows. ... A public utility is a company that maintains the infrastructure for a public service. ... A municipal water system is a large system of reservoirs and large-scale piping which supplies fresh water, suitable for human consumption, to houses and other residences. ... Sewers transport wastewater from buildings to treatment facilities. ... A public utility is a company that maintains the infrastructure for a public service. ...


Primary infrastructure considerations for off the grid construction:

  • Fresh water source
  • Energy source
  • Waste disposal

Contents


Fresh Water Considerations

A conservative estimate of the water needs of a family of four is 150 to 300 gallons per day. The water capacity required depends on the following factors:


Everday Needs: drinking, cooking, bathing, toilets and appliances such as diswashers and automatic washing machines.


Seasonal Uses: watering of a lawn or garden, car washing, swimming pools and hot tubs.


Specialized Uses: animal watering, crop irrigation and water treatment devices that require backwashing.


Fire Protection


Heating and Cooling: some geothermal power systems utilized water at below ground temperatures for cooling and heating needs. Geothermal power is electricity generated by utilizing naturally occurring geological heat sources. ...


Fresh Water Sources

Well water is drawn via mechanical pump from a source below the surface of the earth. ... Manual pump used to obtain water A pump is a mechanical device used to move liquids or gases. ... A water well is an artificial excavation or structure put down by any method such as digging, boring or drilling for the purposes of withdrawing water from underground aquifers. ... Rainwater harvesting is the collection and storage of rain from roofs or a surface catchment for future productive use. ... Drinking water This article focuses on water as we experience it every day. ... Desalination or desalinization refers to any of several processes that remove the excess salt and other minerals from water in order to obtain fresh water suitable for animal consumption or irrigation, and if almost all of the salt is removed, for human consumption, sometimes producing table salt as a by... A magnified crystal of salt In chemistry, salt is a term used for ionic compounds composed of positively charged cations and negatively charged anions, so that the product is neutral and without a net charge. ... Minerals are natural compounds formed through geological processes. ... Water (from the Old English word waeter; c. ... For the village on the Isle of Wight, see Freshwater, Isle of Wight. ... The worlds oceans as seen from the South Pacific Ocean (from Okeanos, Greek for river, the ancient Greeks noticed that a strong current flowed off Gibraltar, and assumed it was a great river); covers almost three quarters (71%) of the surface of the Earth, and nearly half of the... Sunset at sea Look up Sea in Wiktionary, the free dictionary Look up maritime in Wiktionary, the free dictionary. ...

Alternative Energy Sources

Solar power describes a number of methods of harnessing energy from the light of the sun. ... For other uses, see Sun (disambiguation). ... Wind farm on South Point, Big Island of Hawaii Wind power refers to useful energy extracted from wind. ... Kinetic energy is energy that a body has as a result of its speed or energy of motion. ... Wind is the roughly horizontal movement of air (as opposed to an air current) caused by uneven heating of the Earths surface. ... A tall tower holds a wind turbine aloft where winds are consistently stronger. ... Geothermal power is electricity generated by utilizing naturally occurring geological heat sources. ... For songs called Electricity, see Electricity (song title). ... Geology (from Greek γη- (ge-, the earth) and λογος (logos, word, reason)) is the science and study of the Earth, its composition, structure, physical properties, history, and the processes that shape it. ...

Waste Disposal


  Results from FactBites:
 
Word Spy - off the grid (438 words)
The Earthship dwellers live "off the grid" of any sort of utility, just like the pueblo Indians.
The grid in today's phrase is the informal name given to the electricity network's interlocking system of transmission lines and power stations.
So, not surprisingly, off the grid originally meant only a disconnection from the electricity supply, and has been used in that sense in the power industry for some time.
  More results at FactBites »

 

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