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21
Solar energy / Re: Boring to look at
« Last post by ROB25038072 on November 23, 2025, 04:06:41 pm »
I don't think you need to worry about cooling; I get WAY more sun and extreme heat than you do and mine are 6 years and still going strong; paid a bit more for 5 year old solar farm takeoffs.
Here the micro inverters are illegal to use and to get them approved is about 10k worth of switches panels and if they're chinese made, good luck... I found out after I was using mine for a while and hydro threatened to pull the plug...

Well, I think there’s various levels of Chinese made, but I definitely didn’t buy them from Temu, AliExpress, Shein or any other version of Bennies bargain basement. A couple of summers ago we had a bit of a heat wave if you will, short lived but the UK went brown according satellite images (assuming the BBC didn’t edit the photos). I’m not sure how much hotter than the ambient temperature they get but I can’t touch my truck at high noon in the summer months.

Here’s the inverter model I’m using, I’ll have to cut the AC plug off and fit my own standard weather tight version as I’m not getting tied into ‘Voltacon’ cables as £30 for a couple meters. Pretty sure that’s how they make their money!

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Solar energy / Re: Boring to look at
« Last post by itsandbits1 on November 23, 2025, 03:32:45 pm »
I don't think you need to worry about cooling; I get WAY more sun and extreme heat than you do and mine are 6 years and still going strong; paid a bit more for 5 year old solar farm takeoffs.
Here the micro inverters are illegal to use and to get them approved is about 10k worth of switches panels and if they're chinese made, good luck... I found out after I was using mine for a while and hydro threatened to pull the plug...
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Solar energy / Boring to look at
« Last post by ROB25038072 on November 23, 2025, 03:00:59 pm »
Whilst Solar arrays are boring to look at. I have no choice but to admit they are pretty effective. Even on dark and gloomy winter days the 8 panels on my roof are making electrons move sufficiently enough to get a little cash back from my energy provider. So today I decided to boost my generation with 6 secondhand 250watt panels. 10 years old but at £25 each I think I got a good deal.

My plan is to try hanging these vertically on the garden fence, the idea being they should run cooler by not pointing directly at the current bun and hopefully produce more power over a longer working life. I’ve got 3 600 watt micro inverters which will take two panels connected in parallel with the 3 inverters on a common bus. The bus will plug into a standard 240ac electrical socket (outlet) in the house or at least an outside socket. The connection needs to be down stream from the roof panels generation meter as I’m bound by a generation contract, additionally by not hardwiring into my fuse box/consumer unit I’ll avoid all electrical regulations etc and preserve my home insurance. This set up falls under the same regulations as any other plug in device, so pretty minimal regulation and fuss.





If the vertical set up proves not to be viable I’ll likely look into diy water cooling etc to get the best output though I imagine this could take a few years of fiddling AKA a longitudinal study. Unfortunately I don’t have the space for a gigantic sun tracking array 😕

I’ll definitely be sticking with VAWTs to get my kicks.

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Messages from ADMIN / Language
« Last post by CG on October 23, 2025, 04:51:12 pm »
Please realize that some members may be offended by off color etc. language. Even if the bad words are abbreviated. Thanks for understanding.
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Messages from ADMIN / Re: Darrieus patent
« Last post by itsandbits1 on October 14, 2025, 01:15:14 pm »
Yah, I ran across that out of the blue the other day when I was looking for something
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Messages from ADMIN / Darrieus patent
« Last post by CG on October 14, 2025, 12:22:30 pm »
I was surprised that the original Darrieus patent actually describes a variable pitch blade.
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Messages from ADMIN / Forum Main Page
« Last post by CG on August 24, 2025, 06:06:32 pm »
This is what the main page should look like when you access the forum.
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Solar energy / Re: Thermo- solar collector
« Last post by itsandbits1 on August 18, 2025, 09:45:41 am »
your brain must hurt some days... hahaha
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Solar energy / Re: Thermo- solar collector
« Last post by CG on August 18, 2025, 08:23:10 am »
I spent $9 on the pencils recreated RMS solar cell and it doesn't work. He must have pencils made from radioactive waste.
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Solar energy / Thermo- solar collector
« Last post by CG on August 13, 2025, 01:53:58 pm »
I watched RMS videos 1720 & 1721where he makes a solar collector from a pencil mark thermocouple.
I had been thinking about that on and off for several years and thought that it might be a way to make a solar collector that doesn't wear out like the current technology.
The thing I came across from reading a little is that the one junction has to be a different temperature for it to work well. So how to do that in a solar collector where everything is exposed to the suns rays?
Everything would have to be in a box with a window in it, the box should probably not be allowed to collect heat so as to keep the temperature differentials, and the cold junction would have to be shielded and heatsunk for the same reasons.
The drawing is what I came up with using the same pencil leads he did . Anybody have more ideas for improvement?


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