Solar Controllers--Don't be a Sucker! :(
Just got to say it again, how it is we are sitting here for five months off grid on solar with no problems at all (third season on solar like this), using the non-programmable, non-MPPT, solar control...
Forum Discussion
smkettner wrote:BFL13 wrote:
Meanwhile, it is still the case that two 12v 120w panels that have Isc of 7.6a will get you 15.2a with PWM and jimindenver's 235w 24 with MPPT gets him max 15a too. (others get 15a but with a 15L controller that clips the amps at 15, but he has a 20a controller, so no clipping keeping it down to 15.)
OK and what was the cost for each system?
No takers?
12v panels (2) $307 240w + cheep controller? $30 so call it $350
24v panel (1) 230w + MS MPPT = $390
All from same place, Solar BLVD. Not a huge difference IMO.
For $40 I will take the extra features of good MPPT. Cheep MPPT might even be a price match with PWM. Now who is the sucker?
