Solar Costs - MPPT vs PWM
The continued lower price of the larger panels has now dropped the MPPT costs just below PWM for a larger RV solar setup. SolarBlvd Cynergy 3x$200 250W panels 750W $600 SolarHome Morningstar MPPT ...
Forum Discussion
smkettner wrote:
Flat mounted I would be tempted to use MS-MPPT-45 up to 750 watts. Good point and as I recall you've posted that the 45 would work for you.
5x 140w = 5x 8.4 Isc = 42 amps so 45 PWM should be fine also. I haven't investigated the differences between the 45 and 60 PWM controllers.
Some time back I decided that for me the MS-MPPT-60 was desirable because of the CAT5 and MS View capability. You took as I recall a different route with no remote display and no or limited use of a computer - if that is correct?
Based on what I know it would be possible to use a 2x2 series/parallel array of 250W flat mounted with the MS-MPPT-60. Disclaimer - You can use more than the stated 800W limit with the 60A derated limit but anyone considering this should contact MS.
