The holidays are a perfect opportunity to change your favorite gadget geek’s energy usage habits using something that no one can resist – presents! To your giftee, it will look like you’ve gone out of your way to research the coolest new electronics, but the hidden bonus is that all of them are hooked up with the latest green technology. From energy-efficient appliances to solar gizmos that generate portable power on the go, read on for our top ten green gadget gifts for 2010!