BFL13 wrote:
I disagree with Almot on using an Eco-W with the 12v set-up. I would use a Solar30 PWM controller as previously mentioned. I have used both and am familiar with their features and performances.
IMO the $35 Solar30 would do as well or even better than the $108 Eco-W. You must use MPPT with a 24v set-up, so I would use one Eco-W per 24v panel like JiminDenver is doing now (and me too with one panel) rather than spend big bucks on a fancy MPPT controller that has enough amps room to run a whole array and/or has a bunch of features that I don't need like being able to attach it to my laptop. That is based only on the money difference. The expensive fancy one does no better getting the same amps to the battery.
It is all very personal and situational. Also there is a lot of snobbery among controller owners like a guy who has a Buick to go to the store to buy a loaf of bread will sneer at the mere Chev owner who does the same thing. Each gets his loaf of bread ok, but the Buick guy gets to feel smug too! :)
BFL, does the Solar30 controller have temperature compensation?
