CLEVELAND -- When you read the recent headlines about the nearly 600,000 people working in clean-energy jobs across the Midwest, you probably pictured solar panels and wind turbines.
But the vast majority of those jobs - including more than 81,000 jobs in Ohio alone - are in energy efficiency, forming a largely invisible but powerful workforce that helps keep energy costs low and productivity high.
For perspective, there are more Ohioans working in energy efficiency than at a sold-out Cleveland Browns game at FirstEnergy Stadium (capacity 73,200).