This is the second video in the series of four. In this video, I demonstrate what I talked about in the first video by using the Kill A Watt Meter on 2 appliances. I then show how to record the information on a form I made (download from the first video in series).
Add up all of the maximum wattage rating from all of the devices you want to run at the same time and/or that cause the greatest load. Then, add another 25% to 35%. This should tell you the approximate size inverter you need. If you run something that requires a large amount of wattage when first starting up, you need to consider this in your inverter selection. You also need to know if you are going to run a 12, 24, or 48 volt system when selecting an inverter. Use this information when discussing your needs with the solar supply company.
To get the most life out of your battery bank, many solar supply companies suggest not discharging more than 50%. This may only apply to certain types of batteries. You need to inquire about this. With my AGM batteries, I could discharge more, but they will last longer if I do not. So, I suggest adding up all the watt hours your devices use within a 24 hour period and at least double the watt hours to determine minimum battery bank size.
I am not an electrician so you should fact check me before making any decisions based on anything I suggest. Don’t rely on my suggestions or advice to make important decisions related to your system until fist speaking with an electrician (I did) and solar supply company (I did). This is just a hobby for me…
Post time: Jul-03-2017