Many people dread the arrival of the monthly electric bill. We look forward to receiving it.
A few years ago, we hired Site Gen Solar to install an Enphase solar electric, or photovoltaic (PV), system on our barn roof. Although it’s a small system, when combined with our energy efficiency, monthly bills from Alliant Energy are tiny.
Our PV system does more for us than make electricity. It’s an instant weather scanner. We can access our Enphase app from anywhere and it tells us how much energy our system is producing in kilowatt-hours. One kilowatt-hour is enough energy to power a 100-watt light bulb for 10 hours. Our bulbs are LED and on average consume 12 watts.
On clear days our small system produces about 12-kilowatt hours. It powers our refrigerator, furnace fan, computers, and lights. When it produces more than we use, the excess goes out to the grid, subtracting cost from our bill.
The app tells us more. See these photos. When snow covers some panels, we can tell from the app that they weren’t producing much. When all panels are producing poorly, we know it’s a cloudy day or snow is covering all panels. Sometimes when we are traveling we open the app and learn about Cedar Rapids’ weather.