diy solar

diy solar

Recent content by Alphacarina

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    Sizing parallel battery cables

    I agree. Paralleling cables are short, there's little money to be saved by going with a smaller gauge. I'd go with the 2 AWG myself, no matter that load or charge current you expect to have Don
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    11KW EVSE

    . . . . and the VW ID.4, and the Porsche Taycan, and the Audi eTron, and . . . . Don
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    11KW EVSE

    You can use the charger at full potential - You just need a car which can accept that much current. My new VW ID.4 has a built in 11Kw charger and it CCS charges at up to 125Kw Don
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    Is there anything wrong with using a thicker than necessary cable?

    IMO, it's always a good idea to go one or two sizes larger than the calculated wire size for your installation. You never know when you'll want to add another panel or two on to an existing system and if you didn't start with larger cables, you'll be changing them all when you upgrade That...
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    my 540 watt setup will this work ok

    *If* all the panels are the same, or relatively closely matched so far as Voc and current output are concerned When designing a system it's always best to use identical panels as adding in a panel or two later on manufactured by someone else can lead to problems and poor performance Don
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    Parallel three EPEVER Tracer4215BN, need help

    It sounds like it's working normally to me. Each separate string of 600 watt panels will develop different voltage and current levels with regard to the other two strings. Each controller takes that input and converts it to a charge voltage for the battery bank. I would actually be a bit...
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    SOLAR POWER AND FRIDGE

    Also depends on how full your fridge is and how often you're opening the doors. It's unlikely it's drawing 125 watts continuously. It's ratio of on time to off time will depend a lot on how well your system will power it. A couple days of very little sun and you'll probably need some form of...
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    New Rich solar panel tested

    Full sun at 90 degrees? - Perpendicular to the panel? Not a cloud in the sky? Test voltages and current are under *perfect* conditions
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    Recommended mounting material for mobile

    The 0.025" Diamond Plate would have to be screwed to something (likely plywood) to support the weight of the components he wants to mount on it - But, I guess it probably *would* pretty much fireproof the plywood Don
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    Recommended mounting material for mobile

    I just don't see where properly installed modern electrical equipment would be any worry at all with regard to catching the plywood it's mounted on fire. If you want something to worry about, look at the absorption refrigerator above your electrical panel. Out of 100 RV fires, I'd bet that 90...
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    12v DC motors

    What's powering your motor? If it can't supplt 12 volts at 40 or 50 amps, I think you'll have problems. I agree you'll need all new wiring and fuses Don
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    Combining Arrays?

    Yes, all three are done the same way you would do a single controller - All 3 controllers connect to the battery bank separately Don
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    Series / Parallel????

    I ran into the same issue when I put 3 panels on my motor home. I went up a wire size on the feed wires and put them all in parallel. So far as I know, the only real disadvantage of paralleling panels is the higher current sometimes requires larger gauge wire Don
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    Combining Arrays?

    I think you can combine them, but if it was me, I would keep all 3 separate and use 3 separate charge controllers. That way, you can evaluate the performance of the 3 separate arrays and make changes to azimuth and elevation for best performance. When you have a problem and your output dips...
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    AC to DC Charger Specifications

    Yes, it's 35 amps at 12 volts. If it was at 120 volts, your old 55 amp charger would pop your 30 ampm breaker every time you turned it on Don
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