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Posts by Ryan Merkin

The Energy Code of the Future: Modeling and Performance-Based?

It has been clear for some time that energy codes are on course to require carbon-free buildings by 2030. Adoption at the local level will see some areas of the country getting there even sooner. For example, California has set net zero goals for its residential code by 2020. These developments have accelerated the debate about the effectiveness of energy modeling versus performance-based approaches to compliance.

Chart: Improvement in ASHRAE Standard

Improvement in ASHRAE Standard 90/90.1 (1975-2013) with Projections to 2030. Courtesy of Pacific Northwest National Laboratory 2015

Let’s start with energy modeling, where change is coming for the better. In the past, the energy modeling community has been required to continuously respond to energy code cycle updates with new baseline models. That is, the bar for uncovering savings would be increased each and every time a new energy code was adopted. Following a code update, program staff and the energy modeling community would have to go through another learning curve to determine where to set a new bar and how to model the changes. (more…)

The Future is Here: NYC Adopts New Energy Code

With a New York City Council vote on July 14, 2016 NYC adopted amendments to the new New York State (NYS) energy code, which go live October 3rd of this year. Since any amendments to the state code must technically be of greater stringency, there are some notable additions. In this article we NYC Cityscapewill discuss the highlights of both the new NYS and NYC energy code versions for commercial construction (includes multifamily above 3-stories) and what to expect in upcoming revisions as the bar is raised on energy efficiency and high performance buildings.

Before we discuss the highlights, here is a quick primer on the underlying basis of the new code. The new NYS energy code also known as New York State Energy Conservation Construction Code (NYSECCC) is based on a model code and standard – 2015 International Energy Conservation Code (IECC) and ASHRAE 90.1-2013. Naturally, the NYSECC is then referred to as 2015 IECC + 2016 NYS Supplement. In NYC, it’s simply 2016 NYCECC. Got it?

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