solar panels

The best solar panels for an Ontario off-grid system are not the ones with the highest STC wattage rating, they are the ones that maintain output integrity when the temperature is -15C and the roof has 30cm of wet April snow on the frame. A homeowner on Edinburgh Road South in Guelph, Wellington County installed

An MPPT charge controller is the component that determines how much of your panel’s available power actually reaches your battery, and in Ontario’s November low-light conditions, the difference between MPPT and PWM is approximately 28% of every watt your array produces. A homeowner on Clairfields Drive in Guelph, Wellington County installed a 400W panel array

Solar ground mount decisions are not about available roof space or installation convenience. They are the moment a property owner realizes his north-facing roof with mature maple shading would produce 40% less power than the same panels mounted in an open south field. I was helping a property owner near Rockwood in Wellington County, Ontario

Solar panel wiring failures in residential rooftop arrays are not panel failures or inverter failures. They are the moment a property owner checks his monitoring app at 2:30 PM on a clear July afternoon and sees his 1,200W array producing 680W. I was called to diagnose an underperforming solar system at a century home on

Disclosure: This post contains affiliate links. If you purchase through our links, we may earn a small commission at no extra cost to you. Off-grid cold climate solar is a higher-performance environment than summer solar, provided the system was designed for the temperatures it actually operates at rather than the temperatures printed on the panel

Disclosure: This post contains affiliate links. If you purchase through our links, we may earn a small commission at no extra cost to you. Off-grid DC coupling is the efficiency standard that eliminates unnecessary conversion losses from your always-on loads by routing them directly through a native DC sub-panel rather than through the inverter. I

It is 7:00 AM in Rockwood Ontario and -18°C with a fresh layer of wet snow on your roof-mounted solar panels. Do you want to be on that icy 30° pitch with a foam rake and a safety harness or do you want to be standing in your driveway in boots clearing ground-mounted panels with

Most solar panel owners think about production. Almost none think about solar panel snow load until they hear a mounting rail crack in February. In Ontario, Minnesota, and Montana snow is not just a production problem. It is a structural problem. And the wrong mounting hardware in a heavy snow year is the difference between

If your solar panels are tilted for the summer sun you are starving your batteries in December. Your solar panel tilt angle for winter is the difference between a charging system and a snow-covered ornament and most off-grid owners in Ontario, Minnesota, and Montana never adjust it. Think of it like headlight aiming. If your

Your solar system is producing 30% of expected output on a perfectly clear January day in Rockwood. No clouds. Full sun. You have checked the charge controller, the battery connections, the fuse. Everything looks fine. The culprit is solar panel shading and it is not a tree. It is a single leafless branch casting a