Would you like to generate your own power, make your own water, dispose of your own garbage, sewage and enjoy all the conveniences of modern life? It has been done.
Back in my Navy days I paid a port call to Sydney, Australia. There I visited the "Chippendale House" a sustainable terrace Home (that's what they call a town house in Oz) in the Chippendale district of Sydney. Even though the owners were no longer giving tours that year, they took pity on a visiting Yank and the owner. Michael Mobb. and his wife gave me the nickle tour.
The house looks like a normal townhouse from the outside. No different from the "neighbours." Michael showed me a small box, the DC power converter and the electric meter. They are connected to the grid, but most days when the family of four are out of the house the meter runs backwards. PV panels on the roof. OK no big deal.
They have a solar water heater, also on the roof, with a small propane backup. Clever, but nothing I've never heard of before.
They harvest rainwater. This is where it gets clever. The seamed metal roof, leads to crescent shaped gutters along the front and back of the house. These gutters are designed so the wind will blow the leaves out. Next, engineers at the local university calculated how much rain would be needed to give the roof a good rinse before harvesting the rain water. So once "x" number of liters have run over the roof and diverted away from the cistern a simple float valve rises and sends the clean water to the cistern under the deck. When you need a drink, an electric pump moves the water and it is flash sterilzed using ultra-violet light on the way to the tap. I drank a glass of their water. Sweetest I've ever had.
The water that goes down the sink drains goes into a grey water system. That water is recycled to run dishwashers, showers, washing machines, toilets. According to the Missus, the clothes come out looking fine, the dishes are clean and the local Uni takes regular tests and say the water is almost drinkable. Almost. So don't shower with your mouth open and don't pee in the shower. Urine, like karma, goes around.
When you flush the dunny (Australian for toilet) that goes into it's own system, an anaerobic tank also under the deck. There it does its thing and the waste water eventually goes to a little artificial wetland in their backyard. There reeds, cattails and other water plants finish the clean up. It also provides a cool habitat with frogs, dragonflies and such for the kids.
There is also a trapdoor in the deck where they dispose of their organic waste into a special composting bin. He opened the door for me and I was surprised to find no odor.
OBTW, in case you are wondering how big this deck is, it don't recall it being much bigger than 8 ft x 12 ft and about 18 - 24 inches above grade.
Mobb told me that they had not given up anything. TVs, VCR, stereo, fridge, freezer, electric stove, dishwasher, washer and drier. It was all there, all ultra energy efficient of course. He believed that the reason a lot of sustainable house projects fail is because they required really radical changes in the modern lifestyle.
Now I know that without a battery bank, he would probably have to do some load shedding during a daytime blackout and would be really screwed at night.
When I asked them what made them do this, Michael admitted it was a kitchen remodel that got out of hand. They wanted sustainably harvested wood for their cabinets and one thing led to another. Here is the kicker, the whole retrofit only cost AUS $ 78,000.
Now before you think that is a huge chunk of change, consider this: It the 1990's that was about US$ 45,000. Now consider that they had to modify or build around existing systems in the house. Image the cost savings if all those features had been incorporated during the original construction? Combine it with metal framed straw-baled home like SunBale of Tuscon AZ used to build and you've got a very modern and reasonably priced home.
Mobb has since published a book about the house and does environmental consulting work. I've bought a copy of the book and you can learn more about the house at this website:
http://www.sustainablehouse.com.au/Last known contact info for SunBale at the bottom of this article:
http://www.ibiblio.org/london/alternati ... /35p62.txt