Gregers Reimann, IEN Consultants: Building higher performance

What is a high-performing building? Do the two yardsticks of performance — efficiency and well-being — complement each other? If there are trade-offs, how do we prioritise?
Wolfgang Kessling, Transsolar: Low tech and low energy for high comfort

Cooling and heating consume a lot of power in buildings. But what if the answer to the question of comfort was only partly about mechanical solutions? What if we could create comfort indoors with little or even no energy?