Hello Everyone,
I have discussed our life off grid with many people and everyone seems interested in the solar part. I’m going to handle this subject in two postings. In this one I’m going to discuss what we have and how we decided what to do. The second part I’ll discuss what we did wrong or would do differently if we did it all over again.
I want to start by explaining that we moved to a “three season” cabin in the Northwoods back in August. We owned the property for over a year and I would visit on weekends and changed it into a super insulated “all season” home. The property is so remote that it would cost around $60,000 to run grid power out here. For us that was just out of reach. Most people with these type cabins use generators for the electric needs during summer vacations or hunting season. I thought that the cost to run a generator would be pretty high also. Our solution…….
First we had to identify how much power we needed. Sounds easy right? Wrong. There are lots of sites that will help you with this and we spent some time working with the folks at www.backwoodssoloar.com. Now we didn’t end up buying anything from them, they were very helpful and in part 2 I’ll discuss what we should have done. I’ll be getting with them when we upgrade in the future.
There are two ways to approach this, the first is to evaluate your electrical needs based on a normal life. What I mean is you can continue live like your on the grid. Microwave, washing machine, refrigerator, etc., but you soon find out that it will cost you a lot. You also have to consider how much sun/wind potential you have in your area. The second way to look at electrical needs is based on what you need to survive or live a simpler life. This is the direction we decided to go.
OK, your going to make your life simpler, right! We went propane on our fridge, cooking stove and hot water heater, no washing machine(makes for family time going to the laundry mat). So our largest need for it is our well. When we bought the place it had an old pump that drew lots of power and we decided we could replace it with a more efficient model and reduce our power needs.
So our final needs were less than 2000 watts to run everything. If you don’t know what that means relative to a grid home, it’s about a quarter of a normal home.
Now we had a target amount and could start shopping. I had several quotes around $10,000 and included all kinds of nice mounting gear, switch boxes, etc, ………well I couldn’t pull that mouse out of my pocket either, so plan B. Make my own!
So we got out the Northern Tool catalog and ordered a Xantrex Power Hub 1800. It came with 2 110w solar panels, power hub, 2 sealed AGM 12v batteries and a 30 amp charge controller. So to complete the project, we had to buy the following: 2 more AGM batteries, battery case for power hub, 100′ 8-2 wire, automotive 12 v fuse blocks (used in amplifier installations), AC cut off switch for air conditioning unit, and outside weather proof box(panel combiner). All in total we put around $3500 in the system and it works! I’ve posted some pictures below.
I’ll talk about our supplemental power from a generator tomorrow…..
