AMHERST, Mass. - Electrical brown-outs that occur during summer heat waves, when air conditioners use up large amounts of power, may be avoidable one day, thanks to a technology being assessed at the University of Massachusetts. UMass is a partner in an innovative program aimed at helping Massachusetts companies bring innovative environmental and energy-related technologies to the marketplace. The Massachusetts Strategic Envirotechnology Partnership (STEP) is a collaboration between UMass, the state Executive Office of Environmental Affairs, and the Department of Economic Development.