Living off the Grid

By celsias

4 comments

Posted on July 28, 2011. Listed in:


This is taken from the website of the Hybrid Smart Home . It's great to see architects looking at options for hybrid power sourcing for homes.

" The solar systems that we use in our homes are designed to run your new On-Site home with no issues at all. Our systems are fully automated and very user friendly. Whether you are placing your On-Site, Off the Grid Home at the beach, on the farm or even in town, our systems will ensure you NEVER pay another power bill again.


The home pictured below is running "Off the Grid" using six large, roof mounted solar panels, a deep cycle battery bank, backup diesel generator and an in-home smart control unit.

 This particular system is designed specifically to run this home. The system will run the fridge/freezer, washing machine, all home lighting, TV, DVD, power points, computer and most other appliances needed in the home. The smart home can be connected to No.8 wireless for phone and internet services. The hot water supply is by LPG gas califont by Bosch and has a log fire with a wetback and cook top system attached. 

This is a very energy efficient home, you can switch between gas hot water and wetback any time you like. The cooking in this home is by LPG gas oven with gas cook top. This home can, of course, also be supplied to connect to mains power services.

4 comments

If you see any unhelpful comments, please let us know immediately.

climape

Deep cycle batteries are expensive, have a short life and are full of lead. This system setup has been available for over thirty years; instead it is preferable to grid connect when it is available - be a part of the system and us the grid as your "storage".
Obviously if connecting to the grid is prohibitively expensive you would consider a stand alone system - but including other power sources (such a small wind turbines) is advised. Using LPG as a hot water heater seems contradictory to the obvious cost effective addition of solar thermal panels to heat water. Solar thermal + wood wetback is a resilient water heating solution. Any resistive load is to be avoided in a setup like this -so no oil heaters and consider a wood fired oven (with wetback) that heats the house, cooks your food and helps heat the hotwater. Your choice of fridge freezer is crucial: too high a load will trip the inverter. There is more to this subject than this article indicates... expect true off grid viability once 2nd hand lithium batteries from electric vehicles arrive - no toxic lead to recycle... and really if you can - be a part of society not apart from society.

Written in July 2011

David Trubridge

that is a very good comment, climape. there is this idea that we have to be totally independent to be green, but actually it is much more efficient to work into local community networks. for instance, solar panels are very expensive as in $/watt produced. having all those solar panels on your roof is like wearing your heart on your sleeve. instead maybe look at investing in shares in a wind farm, much cheaper $/watt. or why not just buy your electricity from meridian?

Written in August 2011

SteveR

The Japanese nuclear disaster may have unintended benefits. Now you can use lithium ion batteries - the ones stored in your electric car.
http://www.itworld.com/188801/nissan-eyes-powering-your-house-your-car

Lead-acid batteries is not a good reason not to go off-grid. The recycling of lead-acid batteries is well established. Are we choosing not to drive because every single car comes with a battery?
The grid is not a 'storage' device at all. It is a very inefficient means of moving electrons. If the electrons are not needed, it is shunted into the ground if it wasn't already lost in the lines. Better to use where it is generated. It's more efficient in the long run

Written in August 2011

Paul Kennett

SteveR - The electricity for the grid is produced on demand. So, "if the electrons are not needed" they are not produced. When demand is low Huntly is not fired up and hydro lakes are not drained. Hydro acts as a huge power storage "battery" - water not drained is available for later power generation.

Written in August 2011

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