MONTREAL (AFP) - Canadian researchers have developed a ground-breaking method which may ultimately enable excess energy created by wind turbines and solar panels to be stored for later use. 2 researchers at the University of Calgary report in the journal Science that they have invented a relatively inexpensive way of using rust to act as a catalyst for capturing energy through the electrolysis of water. “This breakthrough offers a relatively cheaper method of storing and reusing electricity produced by wind turbines and solar panels,” said Curtis Berlinguette, associate professor of chemistry at the university. “Our work represents a critical step for realizing a large-scale, clean energy economy,” he added.