Pretty cool to see electric technology making it into aviation. Interesting how they charge the 165kWh batteries during the day while running the engines as well and go through the packs overnight. That's a lot of battery capacity and I imagine those solar panels need to be pretty efficient as well.
New solar plane is as big as a 747, will circumnavigate the globe | Ars Technica
New solar plane is as big as a 747, will circumnavigate the globe | Ars Technica