My Clean Break column today takes a look at the rising interest in industrial-scale heat recovery technologies as pulp and paper, food and beverage, biofuel and a range of other companies cope with rising fossil fuel prices. Tim Angus, president and CEO of Ottawa-based Thermal Energy, estimates that a third — up to $1 billion — in oil and gas used in industrial boilers and dryers in Ontario is lost in the form of waste heat. He says it’s possible to capture up to 80 per cent of that heat and redirect it to industrial processes. Alternatively, companies such as Ormat Technologies are helping some industries turn that heat into electricity. I posted about Thermal Energy recently, but this column takes a closer look at the opportunity and why interest in heat recovery technologies is, well, heating up.