The best photovoltaic solar panels
Thought I would share some information on what are rated as the best/most efficient panels available. Sanyo HIT Power N Series. The cells are hybrids of monocrystalline silicone, surrounded by ultr...
Forum Discussion
BFL to a first approximation,
For MPPT: I(battery) = (V(mpp)*I(mpp))/V(battery) or just
I(battery) = Watts(panel nominal)/V(battery)
For PWM on solar panels with a high V(mpp): I(battery) = I(sc)
For efficiency per dollar (useable watts and amps to the battery per dollar spent) we are approaching the point that PWM on a 24 v panels using just their Isc (not their full watts) may yet be the least expensive alternative since we have high voltage PWM controllers with large amp capacity for cheap. The race is between that and inexpensive MPPT controllers with significant wattage.
Jim
For MPPT: I(battery) = (V(mpp)*I(mpp))/V(battery) or just
I(battery) = Watts(panel nominal)/V(battery)
For PWM on solar panels with a high V(mpp): I(battery) = I(sc)
For efficiency per dollar (useable watts and amps to the battery per dollar spent) we are approaching the point that PWM on a 24 v panels using just their Isc (not their full watts) may yet be the least expensive alternative since we have high voltage PWM controllers with large amp capacity for cheap. The race is between that and inexpensive MPPT controllers with significant wattage.
Jim
