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Post by haga on Sept 12, 2018 13:04:42 GMT
Guys, I just got a hold of 6 pieces of 100 W renogy solar panels at 12v each. I would like to use these for my shed that has no power currently. The main current draws are my small pancake compressor and table saw. What would you buy to get this up and running? I know I need an MPPT charge controller, thinking 4000 Watt inverter (like Magnums), and batteries. This tools are for hobby / DIY home repair use only, so I don't plan on running this all day for commercial use. Thanks in advance.
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Post by tattoo on Sept 12, 2018 14:02:49 GMT
A 2000w inverter would be plenty large enough... No need wasting the extra money.. I have run my table saw off of my 2000w inverter many times and still run the 24 7 appliances at the same time...
Like you said you will need a CC, batteries, also you will need fuses, shut off switches if you want ease of use and large enough wire....
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Post by playersz28 on Sept 12, 2018 15:15:21 GMT
How far is the shed from a building that has hydro? Solar is nice and all but if I had a nearby source for electricity I'd run an overhead or buried feed before I spent money on batteries/CC/inverter. Also watch the inrush load on the compressor when hot, my 5gal one will trip a 15a breaker if it tries to start when hot and I have a couple of shop lights on.
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Post by tattoo on Sept 12, 2018 17:33:59 GMT
How far is the shed from a building that has hydro? Solar is nice and all but if I had a nearby source for electricity I'd run an overhead or buried feed before I spent money on batteries/CC/inverter. Also watch the inrush load on the compressor when hot, my 5gal one will trip a 15a breaker if it tries to start when hot and I have a couple of shop lights on. How big is your solar system I forget? Inverter an all... Thanks
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Post by Haga on Sept 13, 2018 1:04:36 GMT
Tattoo, the only reason I mention 4000 Watts is because I see everyone complaining that their 2000 watt inverter doesn’t have enough juice to deal with the startup power for a compressor or a table saw. I have the ridgid hybrid table saw and not a small contractor saw if that makes a difference.
And I am too far from any other power source to run long lines.
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Post by tattoo on Sept 13, 2018 1:12:28 GMT
Tattoo, the only reason I mention 4000 Watts is because I see everyone complaining that their 2000 watt inverter doesn’t have enough juice to deal with the startup power for a compressor or a table saw. I have the ridgid hybrid table saw and not a small contractor saw if that makes a difference. And I am too far from any other power source to run long lines. Yes it does matter what the draw is at start up... The thing to do is buy a Kill A watt meter and see what the draw actually is...
Also remember you'll need enough reserve power to run a 4000w inverter and it's draw what ever it is....
This won't make a difference with you after thinking about it but it might.... My system stays on 24/7 because of several items... You can cut yours off when you leave I guess?
An inverter uses a good bit of power even when your not using it...
That's why I have a 500w and a 2000w inverter...
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Post by tattoo on Sept 13, 2018 1:14:31 GMT
Also what CC and how many and what kind of batteries are you thinking about buying?
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Post by Haga on Sept 13, 2018 1:40:15 GMT
Looking at the Morningstar and still figuring out the batteries, but looking at lithium. What would you recommend? Should I leave it at 12volts or wire it up for higher voltage?
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Post by tattoo on Sept 13, 2018 2:10:55 GMT
If you can afford lithium buy them they are great but I sure can't afford them.... I have lead acid deep cycle batteries and they work just fine for my usages... They aren't cheap to me but they are much better than an automotive battery...
24v is better than 12v but it cost more for the components... So it's up to you...
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grumpy
Solar Newcomer
Posts: 40
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Post by grumpy on Sept 13, 2018 9:53:19 GMT
Looking at the Morningstar and still figuring out the batteries, but looking at lithium. What would you recommend? Should I leave it at 12volts or wire it up for higher voltage? Just found a great deal at VMAXCHARGETANK.COM for first time customers 10% off plus discount for multi battery purchase and free delivery in COTUS
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Post by Haga on Sept 13, 2018 10:14:19 GMT
Thanks a lot grumpy, I just need to figure how much Ah I need before making that purchase.
Tattoo, I’m fine with the 24v extra cost as long as it’s wirth it. Just figured it’ll be a little more efficient since converting back to 110v.
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Post by tattoo on Sept 13, 2018 12:18:20 GMT
Tattoo, I’m fine with the 24v extra cost as long as it’s wirth it. Just figured it’ll be a little more efficient since converting back to 110v. From what I've read it's worth it.... The closer you can get to 120v the better you are... 48v is even better....
But with that said.... I haven't had any problems with my 12v system doing anything I need it to do... It all comes down to cost and what you are willing to spend...
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Post by playersz28 on Sept 13, 2018 13:15:44 GMT
How far is the shed from a building that has hydro? Solar is nice and all but if I had a nearby source for electricity I'd run an overhead or buried feed before I spent money on batteries/CC/inverter. Also watch the inrush load on the compressor when hot, my 5gal one will trip a 15a breaker if it tries to start when hot and I have a couple of shop lights on. How big is your solar system I forget? Inverter an all... Thanks 640w panels, 448AH of battery & 2000w PSW inverter
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Post by playersz28 on Sept 13, 2018 13:17:52 GMT
Tattoo, the only reason I mention 4000 Watts is because I see everyone complaining that their 2000 watt inverter doesn’t have enough juice to deal with the startup power for a compressor or a table saw. I have the ridgid hybrid table saw and not a small contractor saw if that makes a difference. And I am too far from any other power source to run long lines. Yes it does matter what the draw is at start up... The thing to do is buy a Kill A watt meter and see what the draw actually is...
Also remember you'll need enough reserve power to run a 4000w inverter and it's draw what ever it is....
This won't make a difference with you after thinking about it but it might.... My system stays on 24/7 because of several items... You can cut yours off when you leave I guess?
An inverter uses a good bit of power even when your not using it...
That's why I have a 500w and a 2000w inverter...
My Xantrex ProWatt 2000 uses <800mA with no load
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Post by tattoo on Sept 13, 2018 13:40:42 GMT
My Xantrex ProWatt 2000 uses <800mA with no load That's awesome, I'm thinking my 500w uses .58 and the 2000w is 1.28 I think that's right.. It's been a while since I looked at it.....
Do you have very much of a load 24/7?
I just looked, That's a nice looking inverter....
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