I explained in my last post, Replacing Lead Acid Batteries, that we had to replace the old lead acid batteries. It was time to upgrade our homestead alternative energy system to new technology. This is where the lithium-ion phosphate batteries come in. We bought two brand new ones and loved them. They were beyond our expectations. The downside is……..VERY expensive for most off the grid homesteaders. Yes, VERY! Approximately $900.00 apiece. YIKES!! I can hear you now!
My husband had been studying for a number of years now, the progress of the Tesla powerwall. Now instead of wasting money on the old fashion batteries he had started building a DIY Tesla Powerwall. I myself, cannot give you the technical information on how to do this. I plan to have a future post when he is all finished and we are actually using the first one to share his information. It appears quite complicated to me, but he assures me that he knows what he is doing. If you want to research it for yourself, go to YouTube and put the search term “DIY Tesla Powerwall” in. Some of those guys are powering whole modern houses using this system. It is amazing!
Where did he get all these lithium-ion phosphate batteries? On eBay of course. He bought new ones. Other people doing this are buying used laptop batteries and taking them apart to build with. The reason he did not do that is because some of them will not be good and to find that out you have to test each one. He bought about 80 of them, I think. They are all good. He figured it will be less than half the cost of a new one and they will be bigger and give us more storage than the others we bought. They are good! Not saying they are not. If you have the money and can afford to buy them, then go ahead and do that. I am just telling you what we are doing. My husband always believes instead of paying more for convenience, he would rather save that money and do it himself. One reason is that now he can take that money and buy more cells (lithium-ion phosphate batteries) and build even more. His goal is to power our whole house, including heating and cooking. I am with him on this!
Our house is old and needed a lot of repairs and remodeling when we moved here. Since we are not rich, we had to do it a little bit at a time. I think we have done pretty good considering. Now after eighteen years, next spring, maybe sooner, we will have running water in the house. It is connected and you can turn it on in the cellar but you would have to carry it upstairs. That is not happening! It is easier to carry it in from outside. I am really excited about being able to use my washing machine. Even if it will only have cold water in the beginning. I have a brand new unused washing machine waiting to do our first load of laundry. We bought a lot of equipment and other items to use in the future. Bought ahead and then wait until the day it can be used. Sometimes it doesn’t take that long and other times it can be waiting for a few years or more.
I will share the progress of the DIY Tesla Powerwall as soon as we are using it. I can’t wait because we have more solar panels than we can store their power coming in. It is wasted. It goes into a diversion and that is not good because it is just wasted. In the future the diversion will be heating our water in the water heater. That is not hooked up yet. Soon.
Copyright © 2017 Kathleen G. Lupole
All Photographs Copyright © 2017 Kathleen G. Lupole