A diy all in one solar power block

Tue Nov 06, 2012 12:22 am » by **McMillan**

Folks, look at this, it is real 2KW solar panel constructed out of empty pop-cans!

Sandy can not harm us with this device on the roof, at least that is what the authors of this solar heater say http://solar.freeonplate.com/diy-how-to/DIY-solar-panels.htm

Mon Nov 12, 2012 10:54 am » by **Svaha**

McMillan wrote:Folks, look at this, it is real 2KW solar panel constructed out of empty pop-cans!

Sandy can not harm us with this device on the roof, at least that is what the authors of this solar heater say http://solar.freeonplate.com/diy-how-to/DIY-solar-panels.htm

Nice, I'm gonna build one of these, collected enough alu cans now, already have a blower (12V computer fan), just need to buy some wood, cover and spray.
It will look like this:

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Mon Nov 12, 2012 11:01 am » by **Svaha**

At home you may want to stick with car batteries to store energy, but replace the fluid by alum.

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Mon Nov 12, 2012 7:18 pm » by **Alexrubic**

McMillan wrote:Folks, look at this, it is real 2KW solar panel constructed out of empty pop-cans!

Sandy can not harm us with this device on the roof, at least that is what the authors of this solar heater say http://solar.freeonplate.com/diy-how-to/DIY-solar-panels.htm

From the link (quoted above):

Important note: Our solar system is not able to accumulate thermal energy after producing it. When it's sunny, the solar collector produces heat, but it is necessary to use it immediately for heating the air inside the house. If the sun does not shine, it is necessary to interrupt the supply of air in the solar collector, because otherwise the room will begin to cool off.

Doesn't that make the whole thing redundant? When it is warm and sunny outside you would want it to be cool inside and when it is cool and overcast outside that is when you would want it warm inside!

Tue Nov 13, 2012 8:42 am » by **McMillan**

It does not have to be warm outside in order to use solar thermal panel for heating of your home, sunny weather is enough. In the winter, it can be deep minus outside and sunny with clear sky at the same time. If you have ever been skiing in Austria, you know what I mean, a "deep, deep minus"...

Tue Nov 13, 2012 3:53 pm » by **Alexrubic**

I see. So it is worthwhile if you have a cold sunny day or an overcast hot day but not if you have an overcast cold day or sunny hot day!

Wouldn't be much good in the UK then!