Maybe I missed something, but I thought you were planning on wiring your panels parallel.
I just wondered why, I thought series makes more sense.
Where can I buy Panasonic HIT N250 Slim solar panels here in the U.S.?
- Thread starter MTVR
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Maybe I missed something, but I thought you were planning on wiring your panels parallel.
I just wondered why, I thought series makes more sense.
shade
Well-known member
None of the good stuff is cheap relative to the ALNEW GENNEUINE VECTRON POWRPLUS!! grade controllers found elsewhere. Of course, when a cheap controller over-charges a 600Ah LFP bank, any minimal savings up front is meaningless.
I think it's great when someone puts the effort into learning about something new and building it out themselves. I learned quite a bit from several ExPo members, and I feel comfortable with how my system has come together. The field of mobile power is progressing quickly, and there aren't any simple routes to a reliable, powerful DIY solution. Unlike working on one of my vehicles, there simply isn't a service manual available for a custom power system, so anyone going the DIY route has to make a real effort to learn the subject matter.
On the other hand, what you're contemplating is more complex, much more powerful, and much more expensive than the minimal power system in my little truck, and it might be worth contracting your design work out, or at least paying to have your final design reviewed before moving forward. I've seen that level of service available from some marine vendors, which would be the place I'd go before the typical RV shop.
Alloy
Well-known member
Series with higher voltages saves on the install cost.
Parallel produces more power in marginal conditions.
dreadlocks
Well-known member
these HIT's already run at like 60-70v, so its like two ~32v house panels in series, or almost four 18v panels in a series.. so they hit the begin to charge threshold quicker already without the need to series em.
the higher voltage victrons could be used, but when I did the math the premium price for them was hard to justify.. at that point just getting two solar chargers made more sense for my situation than putting two in series on one controller.. the performance would be better, and the cost difference was the same or better.. a 150/45 goes about $450, the 100/30 goes for like $225 and was alot easier to get a warehouse deal for $180 on.. the higher voltage ones seem to shine more for higher voltage banks, they can do 36v and 48v banks, nominal power for the 150/45 on a 48v bank is 2600W! $450 dont seem like that bad of a deal anymore for that kinda system.
the higher voltage victrons could be used, but when I did the math the premium price for them was hard to justify.. at that point just getting two solar chargers made more sense for my situation than putting two in series on one controller.. the performance would be better, and the cost difference was the same or better.. a 150/45 goes about $450, the 100/30 goes for like $225 and was alot easier to get a warehouse deal for $180 on.. the higher voltage ones seem to shine more for higher voltage banks, they can do 36v and 48v banks, nominal power for the 150/45 on a 48v bank is 2600W! $450 dont seem like that bad of a deal anymore for that kinda system.
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