Greenstorm's Journal

certainly that! look at your annual kWh usage and then look at it by month, and then, if you can, get information about how much the system generates on a sunny day in summer, a sunny day in winter, and a cloudy day in each. you may be pleasantly surprised and at the least you'd have enough actual data to make a good decision. lights mostly require very little power especially if they can be LEDs. refrigerator can be DC which will be more efficient because it skips using an inverter. etc. we find that heat and power tools are the big power draws in our system.