Well – my solar panels are on the roof, wires run, charge controller running and inverter installed. Just one problem – the system will not fill the role I originally intended. I am usually pretty good at math – but in this particular situation I failed to recognize the results of a simple math equation right in front of me.
First off – my plan was to use the solar panels to charge couple of marine batteries which would then power a very small refrigerator. The fridge is needed for my sons insulin in the event that the grid fails. Here is the problem:
Solar panels produce 45 watts of power for every hour of good sunlight (approx 8)
Refrigerator consumes 140 watts of power per hour 24/7.
Power needed = 3,360 watts daily
Maximum power supplied from solar panels = 360 watts daily
Obviously I am way shy of getting the power that is needed. I just did not so the math at the beginning. In order to make this successful – I need a total of 10 of these systems. That is not going to work. To accomplish what I have set out to do – I will have to rethink this project. I need more power – so a larger system is needed. I also need to source a lower power consumption refrigerator.
Another option is to seek alternate types of refridgerators to start with which consume little to no power.
Regardless of this setback – I still have my solar panels (which I purchased at Harbor Freight). I plan to use the system as it is now configured to perform a variety of roles such as running a radio, power tools such as a drill, and charge batteries.
Having this small system in a grid down situation will be MUCH better than having nothing at all.
More to come……
Like what you read?
Then you're gonna love my free PDF, 20 common survival items, 20 uncommon survival uses for each. That's 400 total uses for these innocent little items!
Just enter your primary e-mail below to get your link. This will also subscribe you to my newsletter so you stay up-to-date with everything: new articles, ebooks, products and more!
By entering your email, you agree to subscribe to the Modern Survival Online newsletter. We will not spam you.