In Denmark, it would seem, two not compatible concepts - going in for sports and energy-savings was successfully able to unite. Somehow, one of the Danish hotels, set on his roof of sunny batteries (by the general area of 2500 м2) appeared small, and his guidance decided to bring in a yet greater contribution to the decline of volumes of extrass of greenhouse gases.

And it was done following. To the guests, who consented to produce 10 Watts of electricity by means of exercise bicycle, free dinner was given. All process of twisting of pedals occupied approximately 15 minutes. Firstly, two special exercise bicycles were set, but from persons interested to do some work for delicious dinner there was not retreat. It was therefore made decision about a purchase a few.