A new paper from Dr. James Hoff highlights the significant, and previously unquantified, peak energy cost savings that cool roofs deliver.  Up until now, energy analyses of cool roofs only looked at the impact on base power consumption but ignored the impact of capacity demand charges.  Turns out, those demand charges can be a big part of the bill!  By detailing all of the energy saving benefits of cool roofs, this paper shows that cool roofs make a lot of sense throughout the country.  Check it out here.