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nZEB guide by ASHRAE: future-proofed, forward-looking building for 21st century!
June 26, 2019

nZEB guide by ASHRAE: future-proofed, forward-looking building for 21st century!

Finally some more comprehensive nZEB guide by ASHRAE!

For sometime now, I was looking for some information and preferably some books or nZEB guide! And my wish came true! One day I have received the mail from ASHRAE stating that they have published the nZEB guide for office buildings. Eager me, I have clicked and what a surprise! They have published several guides on energy design guides for achieving nZEB, 50% and 30% of savings. Here is the list of energy design guides on following topics:

Zero Energy ASHRAE Advanced Energy Design Guides

  • K-12 School Buildings: Zero Energy
  • AEDG for Small to Medium Office Buildings: Achieving Zero Energy

50% ASHRAE Advanced Energy Design Guides

  • Grocery Stores: 50%
  • K-12 School Buildings: 50%
  • Medium to Big Box Retail Buildings: 50%
  • Large Hospitals: 50%
  • Small To Medium Office Buildings: 50%

30% ASHRAE Advanced Energy Design Guides

  • Small Office Buildings: 30%
  • Small Warehouses and Self-Storage Buildings: 30%
  • Small Retail Buildings: 30%
  • Highway Lodging: 30%
  • K-12 School Buildings: 30%
  • Small Hospital and Healthcare Facilities: 30%

Achieving Zero Energy – Advanced Energy Design Guide for Small to Medium Office Building!

The ASHRAE guidebook for “Achieving Zero Energy – Advanced Energy Design Guide for Small to Medium Office Building” was published in 2019. And it is 222 pages of valuable information and case studies on nZEB, principles for success, establishing of nZEB, building performance simulation (including design process, building systems strategies), how-to strategies (including site planning, building, envelope, daylighting, lighting control, electric, power distribution systems, water heating, HVAC, renewable energies).

About the nZEB guide!

I really like a bit of normal information about the beginning of nZEB in 2003 and development of this concept. So in Brad Liljequist´s words:“The first time I heard someone talk about zero energy buildings was in 2003. A group of us were working on a residential green demonstration home in western Washington, one of the team had heard the term, and it was thrown out as a goal. Frankly, we weren’t even completely sure what it meant. … In the following 15 years, the concept of and the know-how, technology, and design integration around zero energy have grown enormously. Rather than head-scratching about how to get there, a number of leading engineering, design, and contractor firms have a firm handle on the approach. Supportive technologies and their relative costs have improved, from envelope to mechanical systems to switching technologies to renewables. I view this Guide as a coming of age of sorts for zero energy—a transition from awkward teenage years to early adulthood.”

In foreword Brad Liljequist also states: “Properly designed and constructed, better insulated and tighter envelopes mean a quieter, more thermally comfortable workspace and a more durable building. Well-daylighted buildings connect workers to nature. Thoughtful design which is ethically responsive to today’s environmental realities is inspiring and comforting. The reality is also that zero energy buildings call on not just muscle power but also brain power—the kind of high-value-added construction that results in well-paying jobs and a strengthening of the domestic economy. And many of these elements results in a more valuable asset, a future-proofed, forward-looking building for the twenty-first century.”

Download the guides at https://www.ashrae.org/technical-resources/aedgs/zero-energy-aedg-free-download.

Read and watch more about nZEB!

New video: nZEB, indoor climate requirements and developments in Europe!

Energy monitoring in nZEB: Practical results from iSERVcmb!

Renewables in upcoming nZEB!


Image from ASHRAE www.ashrae.org