In the third article, Eric had removed the propane tanks. In order to keep the refrigerator cold, we now need to install our electrical solution. To this end, we will install solar panels on the roof, an electronic system, an inverter, a charge controller for the solar energy and an indicator to see the energy expenses. We also take the opportunity to change small accessories like the radio and the lights.
Replacement of the radio
We begin by disconnecting the radio, connected just above the sink, we are going to be able to recover this space. We replace the radio for the MB Quart GMR3 model which will allow us to save space according to its smaller size and the new more optimal place where we decided to position it.
Change of the ceiling lights
We take the opportunity to change the ceiling lights for LED lights. In addition to having a better clarity, the LED lights consume a little less and have a longer life span.
Installation of the solar panels
First, prepare the panels by installing the aluminum mounting brackets. Then we have to plan their position on the roof. We also bought a wire cover in which we can hide them and give them a cleaner look. When it came time to install the second panel, we wondered if we should leave the front space empty for transportation. After some costing, we decided to install it in the front anyway. The installation is not easy, but we take our time to make sure we do it right. Next step is to connect the controller and then the electricity. We install the control plate where the old radio was. To pass the wires from the roof, we use the moldings since it is impossible to pass the wires in the walls, since they are filled.
Summary of the electrical installations
2 solar panels of 200W of Renogy brand: $206
Controller: $49
2000W inverter: $599
170 amp battery to allow for a total consumption of at least 2000W: $1149
This will easily power the 36W refrigerator, water pump, LED lighting. Currently, not to mention the 110V elements we have a great autonomy. We will also be able to run the induction cooker, the fan and a small pellet barbecue. The only elements for which we will need more autonomy will be the water heater and the heating, since they are elements that run for a very long time, so on the inverter, it is not enough with 170 amps of battery. So to do that, we would have to add a battery and have more solar panels.
Anyway, since what we prefer is to be plugged in from campsite to campsite and we don’t really do wilderness camping, our current autonomy is more than enough. We will therefore evaluate in the long term our needs to add new panels and another battery.
Verdict of the consumption
After a few days of using the solar panels and the refrigerator, the battery never goes below 94%. Jean-François comes back from work and it is maintained at 100%. Even if it is not yet very hot outside, with these data, we are convinced that we are autonomous for at least a week by powering the radio, the refrigerator, the water pump and the lights.