The system we have now cost around 6 thousand Canadian 20 years ago. Today I could buy the same power output for 2. Saved 14,000 in fuel cost and that much worth of exhaust. Electricity was cheap but we had a purpose. |Still have it. I'll drop into Canadian Tire once in awhile and buy the panels on sale. $175 for 100 watt that 10 years ago was 800. I bought a 100 watt panel, 30 amp controller and a lot of cable on Amazon for $250 and realized there were even better deals. Crazy, we have surplus panel. Once we'd scratch are monies together to buy one. I threw this together to keep our freezer going in the summer. Found I could run a bench grinder and the freezer on a sunny day. A metal frame laying around, some scrap plywood and a couple of wheels. The panels were clearance stuff. 2 deep 6 batteries cost. They've doubled in price in 20 years. We built a tracking system for tilt and angle. When you work at home you can turn it. Again the tracker cost $50 in scrap. The system's a little bigger now by a few 100 watts. With these 2 systems we've increased our exposure by 45%. We eliminated the ropes after we put a steel roof on our cabin.The reflection off the steel almost made the tilt obsolete.