Sustainability is, as ever, an increasingly dominant theme at all technology conferences, and the Consumer Electronics Show (CES) this year is no different. But rather than just electric vehicles (EVs) on display, as well as hydrogen offerings, solar power also demonstrated its prowess in Las Vegas. Here is how solar energy stole the show. CES 2024 updates: All the latest news, announcements and gadgets from Las VegasAmbient Photonics: Constant power to indoor and outdoor electronicsThe US start-up Ambient Photonics showed off its new solar cell, which can provide constant power from indoor an…