Bruce Mau will be the plenary speaker at next week's Building Energy 05 in Boston, an annual conference of renewable energy and green design professionals. Mau wants to inspire the design community to dedicate itself to creating sustainable energy, design and technology on a global scale--so he is probably the perfect keynoter for this year's Building Energy theme: "The Practice of Sustainability: Art/Science/Business." Alex heard him last year at Pop!Tech.