I have been keeping track of my solar production every month since installation to see how I am doing. Overall the system has performed quite well. The economics are actually doing better than I expected.
For 2022 we consumed 8616 kWh, and we put back 8594 kWh, so we were able to produce 100% of our consumption which was great! On top of that we utilized 4007 kWh in our house, which we could calculate by taking the kWh produced by the system minus the amount we received micro-gen credits for.
One of things we noticed is when we have changed some of our behaviours in when we use electricity. Now that we know we can use our own, we have put a lot more of our heavy loads in during daylight hours like using the dryer or putting on the dishwasher. The 4007 kWh that we used in the house is particularly valuable as we not only save the power cost, but also the 6 cents per kWh or so of variable distribution and transmission costs. These are the most valuable kWh’s we produce.
On the economics side the value of our production in 2022 was $2570, which is a real amount. It consists of the microgen $ we get from Spot Power on the 8594 we put back into the grid, and the 4007 internally used kWh that is calculated at the power rate plus distribution and transmission. At this rate the system should payback in 7 – 8 more years, which is better than I expected.
I can’t wait for another year of production to see how we do in 2023!