> In winter months, solar in New York will produce less than 5% what the same facility will produce in the summer. From the numbers I’ve seen, on rooftop syste

> In winter months, solar in New York will produce less than 5% what the same facility will produce in the summer. From the numbers I’ve seen, on rooftop systems, output is 2x in the 6 best months versus the 6 worst months: https://www.lighthousesolarny.com/blog/2017/february/the-seasonality-of-solar-energy-production/ https://www.lighthousesolarny.com/blog/2017/february/the-sea... But some of this summer production increase is by design: summer power is worth more on the grid, so you over-design to capture more sun in summer (steeper angles, ignorance of winter shadowing, reduced focus on winter cleaning/maintenance) at the cost of winter production. If you were building an off-grid system, the summer/winter discrepancy would be smaller. You might even overbuild for winter production at the cost of summer production.