The renogy 50 watt flexible monocrystalline solar panel is an excellent choice for boats rv or camping purposes.
What solar panel do i need for camping.
For our experiment 5 hours of direct sunlight without clouds x 6 amps generated per hour 30 amp hours per day that the solar panels are generating to.
The general rule of thumb is that a 100 watt solar panel can produce about 30 amp hours per day so you can use this guideline to determine about how many panels you need.
What the sun will provide.
Flexible solar panels have an amazing advantage on curved surfaces where traditional modules would represent problems due to the fixed mounting structure.
For example with camping fridges it s best to use the solar panel to charge the battery rather than running the fridge directly from the solar panel as the voltage will drop if clouds come overhead for instance.
By using the battery your fridge keeps running even if the voltage output of the solar panel drops severely due to cloud cover.
On average a system that consists of two one hundred and twenty volt panels should provide more than enough power to run a small rv fridge.
Why do i need a regulator.
Assuming we get 5 hours of direct sunlight we know a 100 watt solar panel will produce 30 amp hours per day.
A 12v solar panel is designed to output at least enough voltage to charge a 12v battery under worst case conditions low light level high temperature etc.
A 12v battery needs at least 13 6 volts to charge therefore under worst case conditions a solar panel needs to output at least 13 6 volts.
A 100 watt solar panel produces approximately 6 amps per hour in direct summer sun without clouds.
How many solar panels do i need to run a fridge.