Hotel offers free meal to guests who are willing to generate electricity
The Crown Plaza Hotel in Copenhagen, Denmark, is offering a free meal to any guest who is able to produce electricity for the hotel on an exercise bike attached to a generator. Guests will have to produce at least 10 watt hours of electricity - roughly 15 minutes of cycling for someone of average fitness. They will then be given meal vouchers worth $36 (26 euros).
Stay fit, free food, sustainable energy… sounds good to me :)