Anyone who buys a brand new Xbox One will be prompted with a special screen when booting up the console for the first time: A choice between "instant-on" and "energy-saving" power modes. The default in the US is instant-on, which enables updates and content downloads while the console isn't in use, and lets users yell at their Xbox Ones to turn them on. The energy-saving mode consumes less power and can save players an average of $6 to $15 per year in the US, Microsoft says. This isn't a new mode, but the move to offer power choices up front follows a March blog post from the National Resources Defense Council that was critical of the Xbox One's always-on default.