high voltage solar panels?
Has anyone experimented with high-voltage solar panels on their RV? I'm thinking along the lines of the 250-300+ watt panels that output 40-60 volts, versus the little 25-100 watt 12 volt panels typically used in RV systems?
Residential and commercial demand has really lowered the price of these big panels, there are many choices for under $1/watt compared to $2 to $3 per watt for the small panels.
I can see several downsides, like dangerous high-voltage DC current, and the need for an MPPT type charge controller versus the inexpensive linear / pwm units used on 12v panels.
But the flip side, two 250 watt panels versus five 100 watt panels - less glass to clean, less wiring to maintain and... fewer holes in the roof.
Residential and commercial demand has really lowered the price of these big panels, there are many choices for under $1/watt compared to $2 to $3 per watt for the small panels.
I can see several downsides, like dangerous high-voltage DC current, and the need for an MPPT type charge controller versus the inexpensive linear / pwm units used on 12v panels.
But the flip side, two 250 watt panels versus five 100 watt panels - less glass to clean, less wiring to maintain and... fewer holes in the roof.
