Mentioning the obvious things: Remember that depending on your location, you will not get full sunlight everyday of the year. The orientation of your roof and whether it’s pointed toward the sun also matters. If you have any young trees around you, they might grow and cast a shadow on your roof. If you have neighbors, they might plant trees.
You can use Project Sunroof to roughly estimate the average sunlight your location receives during a full year (accounting for weather conditions): https://sunroof.withgoogle.com/
The dude who made this site believes in the “great replacement” and that the Covid vaccines were a psy-op to modify people’s dna and make the sheep slave people.
:/
Maybe due to his paranoia his privacy advice might be good lmao. But still. Wow.