Think of this as a cheap-ish roof first, and a solar generator second. If all your cycle commuters switch mode when the weather isn't super nice they don't redu

Think of this as a cheap-ish roof first, and a solar generator second. If all your cycle commuters switch mode when the weather isn't super nice they don't reduce the capacity needs for driving or public transit at all. Keeping bike commuters on bikes in inconvenient weather can be very valuable, compared to the cost of keeping all that idle-unless-rainy capacity. The success threshold of this project is recouping the premium over a corrugated sheet roof. And once you start considering north-south connections an angled roof stops looking that obviously superior, it might well not be worth the effort. You can't just do south-facing rows like a standalone installation of your primary goal is keeping the rain and snow out.