Entries by Alex Mirabile

Transformers: Problems in Disguise

Sometimes a significant source of energy inefficiency in a building can be hiding in a place difficult to detect. In some buildings, a single transformer can have a substantial impact on electrical consumption. Some Background Transformers are responsible for stepping the incoming voltage to a building up or down depending on the design, intended use, […]

Designing Solar for High Density Areas

Hear the term “solar energy” and you’re likely to think of vast fields of glistening panels and hillsides transformed into disco balls. Hear the term “solar energy” and you might picture suburban McMansions with roofs that reflect the sky. Hear the term “solar energy” and you envision… skyscrapers? Affordable housing units? Clusters of panels lurking […]

Nanogrids: A Whole Building Approach to Distributed Energy Resources

Distributed Energy Resources Distributed Energy Resources (DERs) are a growing part of the energy landscape in the United States, and they are becoming an ever more attractive opportunity for households, companies, and building owners to gain control of their own energy needs. By 2024, it is estimated that solar PV plus energy storage will represent […]

Technically Speaking: Not All Insulation is Graded Equally

About a year ago, I worked along with other HERS raters and the North American Insulation Manufacturers Association (NAIMA, a.k.a. Insulation Institute) to conduct a study on the importance of insulation installation quality and grading. RESNET, the nation’s leading home energy efficiency network and the governing body of the Home Energy Rating System (HERS® Index) […]