This could be interesting

upnorthandpersonal

Administrator
Make your bush bars self from alu strip, make then 2 x the square diameter as from copper and you have even a lower resistance and it is a lot cheaper .

But not flexible, like these:

nickel_pated-jpg.39049


Sounds like a wonderful success. It almost sounds like you're complaining... 😜😂

What can I say... I expected at least some fireworks, maybe something to write about/video. I did not expect this all to go this well - I mean as @tictag said at the beginning of this thread: "Buying the cheapest possible components and shoving 10,000W of electrical energy through them. Never has that before been problematic! " :)
 

Fusion is the future

Solar Enthusiast
But not flexible, like these:

nickel_pated-jpg.39049




What can I say... I expected at least some fireworks, maybe something to write about/video. I did not expect this all to go this well - I mean as @tictag said at the beginning of this thread: "Buying the cheapest possible components and shoving 10,000W of electrical energy through them. Never has that before been problematic! " :)
True ! but you was going for the cheapest options ! but if you compress your cheap lithium cells they do not have to be flexible , but i can be wrong.
If you do not compress your cells use a foam between your cells for more isolation and room to expand .
 

DerpsyDoodler

Photon Sorcerer
What's your inverter brands/models (both high and low freq)?

edit: just think, if you wouldnt have replaced the high frequency inverter, you might have been able to cause fireworks eventually. 🤣
 

upnorthandpersonal

Administrator
True ! but you was going for the cheapest options ! but if you compress your cheap lithium cells they do not have to be flexible , but i can be wrong

Well, I didn't really go for the absolute cheapest ones. I went for the cheapest stuff (under 10K in total) that had potential to be good (enough) to handle 10kW. I make those flexible bus bars myself, and they're not that expensive if you DIY actually: it's just copper braid (I think I got two meters if I remember correctly, for 6 Euro/meter) and copper pipe (for something like 15€/meter).
 

upnorthandpersonal

Administrator
What's your inverter brands/models (both high and low freq)?

edit: just think, if you wouldnt have replaced the high frequency inverter, you might have been able to cause fireworks eventually. 🤣

:)

High frequency is a Reliable Electric / WZRELB 5kW
Low frequency is a MUST Power 6kW EP3000 Plus

One of the other reasons I switched is because that MUST one has a build-in charger that can take generator input.
 

DerpsyDoodler

Photon Sorcerer
Does it have a built-in transfer switch? if not, Did you install a transfer switch? will it pass a/c through while it charges? That's a nice beefy inverter. Mine is only 4kw.
 

Fusion is the future

Solar Enthusiast
Well, I didn't really go for the absolute cheapest ones. I went for the cheapest stuff (under 10K in total) that had potential to be good (enough) to handle 10kW. I make those flexible bus bars myself, and they're not that expensive if you DIY actually: it's just copper braid (I think I got two meters if I remember correctly, for 6 Euro/meter) and copper pipe (for something like 15€/meter).
TOP! that is the spirit ! i got it ! never thought about this solution and i have an hammer , whahaha
 

upnorthandpersonal

Administrator
Does it have a built-in transfer switch? if not, Did you install a transfer switch? will it pass a/c through while it charges? That's a nice beefy inverter. Mine is only 4kw.

It passes AC through and you can choose priorities (grid/generator over battery or vice versa). The generator/grid input is connected to the inverter input, and the inverter controls the AC output that goes to the switchboard. Any excess from the generator/grid goes to the battery of course.
 

Ironman

Solar Enthusiast
Well, I didn't really go for the absolute cheapest ones. I went for the cheapest stuff (under 10K in total) that had potential to be good (enough) to handle 10kW. I make those flexible bus bars myself, and they're not that expensive if you DIY actually: it's just copper braid (I think I got two meters if I remember correctly, for 6 Euro/meter) and copper pipe (for something like 15€/meter).
Congratulations on your success. I have been following your thread for along time now, and I have the same stuff as you, and it is good to hear of others doing it right
 

upnorthandpersonal

Administrator
Do you have any form of energy monitoring/tracking?

I do - using Grafana, the same system @BarkingSpider has here:
I wrote the drivers for my components - they all have RS-485 interfaces. That said, I have to do this part better - it's not been a priority.
 

upnorthandpersonal

Administrator
Some time ago, a user on YT built his system with this one as inspiration. He removed his channel some time ago, but now he decided to start a new one - his video of the system is here:

 

Smokin

Solar Enthusiast
I'm not sure you can even call it "counterfeiting." The Chinese have a whole different view of intellectual property. They are portrayed as bad actors for "stealing" intellectual property from other nations, but in their system it's considered fair game. Come up with a new idea? Great - better get it into production and make some money, not sit on it for 10 years waiting for the highest bidder, or use it for patent-trolling.

I play with electronics, and right now I'm working on a Chinese-made CB radio that's sold in the US as a ham transceiver. It's manufactured by Qixiang Electron Science & Technology Co., Ltd., and branded as Anytone, QYT, or BlueSkySea. In the US, it's sold under the Stryker brand. They all use the same PC board, stuffed with varying features by brand, but there's no guarantee the PC boards all come from the same place, or are stuffed with the same grade components. So far, the quality I'm seeing is much better than a few years ago, although some of the semiconductors are questionable counterfeits or mystery generics.

The scandals a few years ago concerning toxic drywall and baby formula seem to have awakened an understanding in China of the value of brands. The government is certainly sensitive to the damage done to the country's manufacturing image by bad products, and has prosecuted some company execs for the more egregious cases.

I believe that in the near term, the worst junk coming from China will have been manufactured to the specs of western importers looking for lowest cost, not driven by actual Chinese brands. They're trying to rise, but still have a long way to go. Chinese electronics quality is just catching up with what Japan was making in 1970, and in some product lines they're doing the same thing Japanese manufacturers used to do - pushing equipment with goofy, unwanted features poorly targeted to the needs of western markets.

View attachment 14943
Sport Copter Vortex gyroplane,, Damn that was cool.
I have a bunch of Chinese 11/10 meter radios, I have the Apollo II. I only pull it out when 11 is wide open. I use it on 29.600 =+/- to listen to repeaters from all over. Otherwise I stay on an Anytone 5555 and a Uniden 980ssb on 11 Meters. Best bang for the buck was the $20 RTL-SDR. Works perfect on 80 and 40. I'm an expired Ham. Don't have any interest in the formal side of radio, I like to Raise Hell on 11 and that works great here on the east coast of Va. Today West coast is blasting in on 27.385. And most of them are Hams. Ha Ha
 

Ampster

Renewable Energy Hobbyist
I'm not sure you can even call it "counterfeiting." The Chinese have a whole different view of intellectual property.
The first case of intellectual property theft that I remember from history was when someone stole a silkworm from the Chinese.
 

curiouscarbon

Science Penguin
I'm not sure you can even call it "counterfeiting." The Chinese have a whole different view of intellectual property. They are portrayed as bad actors for "stealing" intellectual property from other nations, but in their system it's considered fair game. Come up with a new idea? Great - better get it into production and make some money, not sit on it for 10 years waiting for the highest bidder, or use it for patent-trolling.

I play with electronics, and right now I'm working on a Chinese-made CB radio that's sold in the US as a ham transceiver. It's manufactured by Qixiang Electron Science & Technology Co., Ltd., and branded as Anytone, QYT, or BlueSkySea. In the US, it's sold under the Stryker brand. They all use the same PC board, stuffed with varying features by brand, but there's no guarantee the PC boards all come from the same place, or are stuffed with the same grade components. So far, the quality I'm seeing is much better than a few years ago, although some of the semiconductors are questionable counterfeits or mystery generics.

The scandals a few years ago concerning toxic drywall and baby formula seem to have awakened an understanding in China of the value of brands. The government is certainly sensitive to the damage done to the country's manufacturing image by bad products, and has prosecuted some company execs for the more egregious cases.

I believe that in the near term, the worst junk coming from China will have been manufactured to the specs of western importers looking for lowest cost, not driven by actual Chinese brands. They're trying to rise, but still have a long way to go. Chinese electronics quality is just catching up with what Japan was making in 1970, and in some product lines they're doing the same thing Japanese manufacturers used to do - pushing equipment with goofy, unwanted features poorly targeted to the needs of western markets.

View attachment 14943
darn tootin, real life is use it or lose it. can't beg the law person to give me the muscles of my youth, why do it with ideas. lots of electronics in the USA that are considered to be very high end say designed in USA made in China.

very well said about the design principle mattering. intending to make junk from the outset is easy to succeed. also good point about the cultural and linguistic divide resulting in features ill-matched to needs at times.
 

Bluedog225

Solar Enthusiast
Wow! Nice work. And thanks for sharing.

I am tempted to copy this. Though I don’t think I would put my version on the roof. I’d need to opt for a stand-along shipping container energy station with an AC line to the cabin. This may tilt the scale.
 

upnorthandpersonal

Administrator
Wow! Nice work. And thanks for sharing.

I am tempted to copy this. Though I don’t think I would put my version on the roof. I’d need to opt for a stand-along shipping container energy station with an AC line to the cabin. This may tilt the scale.

I made ground mounts for the panels:

The electronics and batteries are in their own separate building.
 

Bluedog225

Solar Enthusiast
Got it. I was just reading your other threads. My comment was more directed at my lack of skill and confidence in general combined with the low-cost equipment.

I’ve been struggling with putting a bunch of semi-diy on top of my cabin and dealing with the fire risk.
 
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