Couple Builds Energy Efficient Passive Solar Home - Walls 20" thick, 10kw Solar, Fossil Fuel Free | Warrior Forum - The #1 Digital Marketing Forum & Marketplace

Jill Carpenter

8 years ago

That house is silly ass huge.

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yukon

Banned 8 years ago

The video is ludicrous.

They're self proclaimed tree huggers with a 4,000 sq ft house. Looks like 3 people living in the house.

Lol, 20 inch walls with about 1,000 sq ft. of 1/2 inch thick windows. Silly. Good luck in 10 years when all the R value/gas leaks out of the windows, they'll feel like they're living on the front porch in the summer/winter.

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tagiscom

8 years ago

Yes, the guy has to be an architect?

They either build weird crap, or this?

It is good that it is EF, but in summer with all of those windows, even with circulating air, etc, they will most likely vacate the building or get an air con, and max it out to cool the house down?

Probably need more solar panels, for that?

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Kurt

8 years ago

Originally Posted by tagiscom

Yes, the guy has to be an architect?

They either build weird crap, or this?

It is good that it is EF, but in summer with all of those windows, even with circulating air, etc, they will most likely vacate the building or get an air con, and max it out to cool the house down?

Probably need more solar panels, for that?

Not really...They say they generate 10 KW from the solar panels. That's 3 times the average electricity usage for the average home in America.

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agc

8 years ago

Originally Posted by Kurt

Not really...They say they generate 10 KW from the solar panels. That's 3 times the average electricity usage for the average home in America.

10kw is MAX.

Ottawa is 3.7 avg sun hours, 4.63 in the summer.
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That means they generate 46.3kwh per day in the summer. Or about $4.63 worth. Think they cool that house AND run everything else for about $138 a month? Maybe. It is around 1380 kwh per month, which is more than the "average household". But that is a big house.

And the copper drain water heat exchanger? Drain water flows fast, it's not sitting around waiting for the heat to be extracted. Unless you back it up a little. Good luck finding the right amount of blockage to flood the toilet.

Plus, ever wonder why you never see copper drain pipes? Because people learned the hard way that the water erodes path on the bottom of the pipe and eventually cuts right through it. Copper supply lines are pressure fed, always full, carry clean water, and the water flows more or less equally inside the pipe. Not as one stream down the middle, dragging soap, lye, bleach, hair, sand, grit and other corrosives and abrasives along with it.

And they have the sample wall and the extra piece of $1000 copper pipe just laying around? That's just begs lots of questions.

Methinks somebody built a marketing piece, not a master piece.

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Kurt

8 years ago

Originally Posted by agc

10kw is MAX.

Ottawa is 3.7 avg sun hours, 4.63 in the summer.
Solar Electric System Sizing Step 4 - Determine the Sun Hours Available Per Day,solar power,solar power home,solar power system,solar power plant,residential solar power,power services solar,solar power panel,residential solar power system,solar powe

That means they generate 46.3kwh per day in the summer. Or about $4.63 worth. Think they cool that house AND run everything else for about $138 a month? Maybe. It is around 1380 kwh per month, which is more than the "average household". But that is a big house.

That's a fair point. However, if there isn't sun then it's likely any demand for AC is reduced.

Also IIRC, the house itself doesn't use any of the electricity generated and sells it all to the grid. I'm not interested enough to watch the video again, but they aren't dependent on the solar system in any way.

And as you pointed out, the amount of sun (or lack of it), plus their insulation along with how the overhang block much of the sunlight in summer from entering the house would likely greatly reduce, or even eliminate, their need for AC.

Also, how many hours of sun is the max based on? I think it's about 8 hours, although I could be off. If so, Ottawa would be roughly half that. The would mean a 10 KW system would produce 5 KW, with the average home needed 3 KW a day...and with the insulation and orientation issues, their home is probably well under the average 3 KW per day.

If the "max" is 12 hours of sun, then their 10KW system puts them right at about 3KW hours, which is the average for a home in the US.

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tagiscom

8 years ago

Originally Posted by Kurt

That's a fair point. However, if there isn't sun then it's likely any demand for AC is reduced.

Also IIRC, the house itself doesn't use any of the electricity generated and sells it all to the grid. I'm not interested enough to watch the video again, but they aren't dependent on the solar system in any way.

And as you pointed out, the amount of sun (or lack of it), plus their insulation along with how the overhang block much of the sunlight in summer from entering the house would likely greatly reduce, or even eliminate, their need for AC.

Also, how many hours of sun is the max based on? I think it's about 8 hours, although I could be off. If so, Ottawa would be roughly half that. The would mean a 10 KW system would produce 5 KW, with the average home needed 3 KW a day...and with the insulation and orientation issues, their home is probably well under the average 3 KW per day.

If the "max" is 12 hours of sun, then their 10KW system puts them right at about 3KW hours, which is the average for a home in the US.

Geesh, maybe l should sent this guy the tessler circuit?

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TLTheLiberator

8 years ago

Cool very, very cool!

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Kurt

8 years ago

Update: After checking, it seems the average US home uses close to 1000KWH per home per month, not the 3000 I said above.

I'm guessing I got the 3000 from the max rating for solar panels needed to provide electricity to power an average home in the US....but that could be wrong too.