MPPT Controllers
As I continue the learning curve, I'm finding the answers I get always lead to 2 more questions... funny how that is... I've been working backwards in developing my solar needs, going from panels t...
Forum Discussion
CA Traveler wrote:
What do over amped PWM controllers do? ie Instead of +25% oversized they are say -15% ? Zap = smoke?
You might let out the magic blue smoke. Efficiency will suffer. My Blue Sky, run at 17 volts input is 98%. At 33 volts it is 94 or 95%.
When brand new, panels often "out perform" their specifications.
I did get 23 amps from 256 watts of fixed flat panels, location was Rugby North Dakota about June 15. Temperature outside was 97 f The panels were less than one month old. "book" value should be about 15.5 amps and I routinely harvest 17 amps *if* the battery bank is hungry, or if I present a large load to the inverter.
17 amps is not bad for panels from 2005, especially in a flat fixed installation.
