During your trek on Everest region electricity is available to recharge your phones, laptop, iPads from micro-hydropower and solar panels on a paying basis. As for Wi-Fi, there are no hotspots along the trekking trail after Namche. The only two places offering free Wi-Fi are Starbucks coffee in Lukla and Everest Bakery in Namche. At other places upwards, you need to pay for using internet services, which increases gradually with the altitude.