It can now be used to analyze multiple-story buildings, instead of just a single-story building. The recently upgraded Back-of-the-Envelope Calculator is more versatile as well. Not only can you see real-time energy connections, but you can calculate total CO 2 emissions for a building from both electricity and gas consumption. The calculator is available for free download and lets you see real-time energy connections among building components, isolate the effects of a change to a single energy parameter or produce concept-level energy estimates. The goal of the 2019 version of 90.1 was to provide clearer guidance for exceeding efficiency goals, said Drake Erbe, Member ASHRAE, chair of the Standard 90.1. This standard provides the minimum requirements for the energy-efficient design. ASHRAE Standard 90.1 has been a benchmark for commercial building energy codes in the United States and a key basis for codes and standards around the world for more than 35 years.
When it comes to understanding energy efficiency opportunities, it’s useful to see how changing one component affects the whole.Įnergy engineers at the Energy Center of Wisconsin developed the Back-of-the-Envelope Calculator to provide greater initial insight into the energy usage and environmental impacts of a proposed commercial building project. The expanded, revised version of the energy standard focuses on energy-saving measures the Standard 90.1 committee hopes will help designers create more energy-efficient buildings. Amendments, rulings, supplements, and errata.
Free tool shows energy interactions in buildingsĮnergy consumption in buildings is a complicated set of interactions among building components.
