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Old 04-14-2019, 03:17 AM
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Is it possible/reasonable to do solar three phase electric for a shop?


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Old 04-14-2019, 08:49 AM
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Possible, yes.
Reasonable??? Like all power questions you would need to provide what it is you want to power. A shop is not a load. It is the machinery inside it that you wanting to provide power for.

Mostly 3 phase is used for motors. Often for commercial applications and is at 480vAC. You can get a electronic device that allows you to run a 3 phase motor on single phase power supply. It is not as efficient as using 3 phase power and the devices are not free.

Solar power is DC voltage (no phases) output from solar panels and needs to be converted (inverted) into a wave form output (AC). This also needs various electronic devices to accomplish. These devices really get expensive and partly consume your power before it reaches what it is you want to power from it.

What is it that you want to power from the solar panels? It may be more economical to find another way to achieve the same task.
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Old 04-14-2019, 09:22 AM
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Quote:
Originally Posted by MattB4 View Post
Possible, yes.
Reasonable??? Like all power questions you would need to provide what it is you want to power. A shop is not a load. It is the machinery inside it that you wanting to provide power for.

Mostly 3 phase is used for motors. Often for commercial applications and is at 480vAC. You can get a electronic device that allows you to run a 3 phase motor on single phase power supply. It is not as efficient as using 3 phase power and the devices are not free.

Solar power is DC voltage (no phases) output from solar panels and needs to be converted (inverted) into a wave form output (AC). This also needs various electronic devices to accomplish. These devices really get expensive and partly consume your power before it reaches what it is you want to power from it.

What is it that you want to power from the solar panels? It may be more economical to find another way to achieve the same task.
Actually the cost of buying a 110/220 Single Phase up to a 1HP with an Inverter. Then again the Motor must be Inverter Duty.
Using just Single Phase 220 to Three Phase you can find an Inverter that will go higher than 1HP but then again the Cost Goes Up.

I have converted many 1HP and Under Machines/Conveyors to 110 as the Customer only had that in the area they wanted to put the equipment and was cheaper than running Three Phase to the area.

Of Course, this will not work with Higher Amp Needed.
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Old 04-14-2019, 09:43 AM
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Out of curiosity I looked up DC to 3 phase inverters as to costs. As you would see here https://www.powerstream.com/inverter...8vac-6000w.htm
the cost for one of these gadgets is rather staggering. I don't think the OP is interested in something that starts at $15,000+ for a mere 1500 watt supply.
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Old 04-14-2019, 09:43 PM
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Thank you, all. I was afraid it would be too expensive to be doable.

Note to self: no 3-phase during long-term outage
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