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20-Years vs. 100-Years for Calculating Global Warming Potential

Global warming potential is the metric that is most commonly used to combine the effects of various greenhouse gases (GHGs). Non-CO₂ pollutants are evaluated relative to CO₂ and their GWP represents the expected global warming impact relative to CO₂. Carbon dioxide equivalent (CO₂e) is calculated as the sum of each climate pollutant mass multiplied times its GWP.

Source Energy as a Proxy for Carbon Emissions

Definitions

Site energy considers only at the heat content of fuels or electricity that arrive at the building. A kWh of electricity is assumed to have source energy content of 3,412 Btu.

Social Cost of Greenhouse Gases

Just about everything we do as we carry on our lives results in climate pollution. Every gallon of gas we burn in our internal-combustion car produces about 30 lb of carbon dioxide equivalent. Each therm of natural gas we use to keep our house warm or take a hot shower produces about 17 lb of carbon dioxide. Each MWh (1,000 kWh) of electricity we use results in from 400 to 2,500 lb of carbon dioxide, depending on where we live.

ZERO Code Presentation at October 17, 2018 Seminar

Read more about ZERO Code Presentation at October 17, 2018 Seminar

I will be giving speaking on the ZERO Code for California at the annual seminar sponsored by the Golden Gate Chapter of ASHRAE, the Center for the Built Environment, and Pacific Gas and Electric Company. The title of the day-long event is "The Changing Face of ZNE and Responsible Grid Citizenship". The event will be live at the Pacific Energy Center and streamed live. Click here to register.

ZERO Code Presentation

Read more about ZERO Code Presentation

I will be giving an evening lecture at the Pacific Energy Center on September 18 on Architecture 2030's ZERO Code (California version). You can register by going to https://lnkd.in/gqxzm95. Also visit www.zero-code.org for more information about the ZERO Code.

Feasibility of Zero Net Energy Buildings

Read more about Feasibility of Zero Net Energy Buildings

The July 2017 issue of the ASHRAE Journal includes an article on the feasibility of zero net energy for a range of building types and climates. Material was adapted from my book, Design Professional's Guide to Zero Net Energy Buildings. Click here here to read.

Conversations on ZNE

The June 2017 issue of the ASHRAE Journal includes a forum with myself and other leaders of the Zero Net Energy (ZNE) movement. The following are some of my contributions. See the article for perspectives from Paul Torcellini, Smita Gupta, Jon McHugh, Mike Rosenberg and others.

Q1: What is a Zero Net Energy Building?

Book Presentation in Palo Alto

The City of Palo Alto Development Services Department is hosting a Zero Net Energy for Design Professionals training on May 23rd 2017. The training will feature Mr. Charles Eley, FAIA, PE, an internationally recognized leader in the area of Zero Net Energy and a veteran in the field of energy efficiency. The training will support the implementation of the current Energy Reach Code. The training format is based on Mr.

Book Presentation at Golden Gate ASHRAE

Charles will speak about is book on zero energy buildings at the Golden Gate ASHRAE meeting on June 8, 2017. Click here for more information.

Book Talk at AIA San Francisco

Charles will talk about his book at the American Institute of Architects San Francisco Chapter on February 21, 2017. Books will be available for purchase from Builder's Booksource.