RV NET solar install?
Ricently purchased a new to us 07 Discovery with a full slide. Looking to full time in the NEAR future. Would like to start planning my solar install. I have a large 8x9 foof area over the bedroom th...
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For a large array you might save dollars if you go for two or more controllers of lower amps instead of one co0ntroller that can take all the amps.
Pricing is weird such that you go up in amps but the dollars go up faster. Also if you don't need the extra features of the fancier controllers available, you can get a 20a MPPT Eco-W that works great for $102 instead of the usual suspects like Morningstar or Rogue that cost way, way more but don't get any more amps to the battery than the Eco- W
You need one Eco-W per 24v panel (It has a 42 Voc input limit) but for three panels that is still "only" $306. Just look at what the Morningstar costs to do 60 amps with the one controller. Yipes! You just put each separate controller on the battery bank so all two or three add their amps--easy peasy. Save a bunch of money.
If you insist on MorningStar or whatever brand, you might still save some money by getting two smaller instead of one big one, if you pick your array size just so. It is all about how the price goes up more than the amps do in controller sizes.
Pricing is weird such that you go up in amps but the dollars go up faster. Also if you don't need the extra features of the fancier controllers available, you can get a 20a MPPT Eco-W that works great for $102 instead of the usual suspects like Morningstar or Rogue that cost way, way more but don't get any more amps to the battery than the Eco- W
You need one Eco-W per 24v panel (It has a 42 Voc input limit) but for three panels that is still "only" $306. Just look at what the Morningstar costs to do 60 amps with the one controller. Yipes! You just put each separate controller on the battery bank so all two or three add their amps--easy peasy. Save a bunch of money.
If you insist on MorningStar or whatever brand, you might still save some money by getting two smaller instead of one big one, if you pick your array size just so. It is all about how the price goes up more than the amps do in controller sizes.
