Sunpower. Here's a list of panels sorted by efficiency: (just one I've been using while researching for a project) https://www.energysage.com/solar-panels/?noi

Sunpower. Here's a list of panels sorted by efficiency: (just one I've been using while researching for a project) https://www.energysage.com/solar-panels/?noidx=true&sort_by=efficiency https://www.energysage.com/solar-panels/?noidx=true&sort_by=... I think they're the only on-the-market 22% efficient panel. This bloomberg article talking about 700W panels is inane, they just increased the panel size past the standard commercial 1mx2m.