Future Spark will have teams competing to power the Earth Hour Concert in Federation Square the competition is taking entries now.
Corporate, school and community teams will power up through the week before the concert on the Future Spark power generation trailer and Bring-Your-Own-Bike racks.
The accumulated energy will then fuel the 2009 Melbourne Earth Hour Concert.
Register a team today for the Earth Hour Future Spark Concert competition, on March 23 to 28.