Ontario can keep the lights on without more nuclear power by boosting conservation efforts, switching to renewable energy and recycling waste heat from industrial and commercial operations into electricity, says a new analysis from the World Wildlife Fund and the Pembina Institute, a Canadian environmental think tank. The two-volume, 155 page study uses Ontario data cross-referenced with comparable energy efficiency and renewable energy project performance in the US and Europe to come up with an alternative to the province's current plan to add nearly 12,000 MW of new or refurbished nuclear capacity over the next 20 years. Adding renewables would cost less than building new nuclear plants and cuts future greenhouse gases from electricity generation in half, the groups say. "This study shows in vivid detail that there is a cheaper, safer, and greener way to power our future," says the Pembina Institute's Cherise Burda. The scenarios in the study contemplate an installed wind energy capacity of 10,000-15,000 MW in the province by 2027, up from the current target of about 5000 MW.