Green Architects' Lounge

An Interview With Martin Holladay, Part 1

Posted on August 11, 2011 by Christopher Briley

You know him, you love him (or at least his articles): Martin Holladay. He was in the neighborhood, so he stopped by to chat with Phil and me for this episode of the Green Architects' Lounge. This is your chance to get to know the man behind some of your favorite blog posts and Fine Homebuilding articles.

Net-Zero Homes, Part 3

Posted on July 14, 2011 by Christopher Briley

In Part 3 of this episode, the net zeroProducing as much energy on an annual basis as one consumes on site, usually with renewable energy sources such as photovoltaics or small-scale wind turbines. Calculating net-zero energy can be difficult, particularly in grid-tied renewable energy systems, because of transmission losses in power lines and other considerations. conversation winds down as Phil and I talk about the “cost trade-off” game in which the homeowners will likely engage. We also have a bit of a disagreement as to how much the clients need to know about the energy-saving details being incorporated into their homes. (Good stuff.)

Net-Zero Homes, Part 2: How to Get to Zero

Posted on June 21, 2011 by Christopher Briley

In part two of this episode, the Net ZeroProducing as much energy on an annual basis as one consumes on site, usually with renewable energy sources such as photovoltaics or small-scale wind turbines. Calculating net-zero energy can be difficult, particularly in grid-tied renewable energy systems, because of transmission losses in power lines and other considerations. conversation gets real as Phil and I talk about how to think about the balancing act of increasing your building performance, decreasing your energy demand, decreasing your mechanical costs, and optimizing your cost. Of course you have to have the target of net zero in mind and the whole team has to be on board. We've even included a handy spreadsheet that Phil's office uses to help run the options and find that “sweet spot.”

Net-Zero Homes, Part 1

Posted on June 8, 2011 by Christopher Briley

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Passivhaus, Part 3: So You Want to Be a Passivhaus Consultant?

Posted on April 25, 2011 by Christopher Briley

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Passivhaus, Part 2: The Standards

Posted on April 11, 2011 by Christopher Briley

You can also subscribe to the Green Architects' Lounge on iTunes. That way, you'll never miss a show—and it's free.

Passivhaus, Part 1: Concepts and Basics

Posted on March 29, 2011 by Christopher Briley

There's a perceptible buzz in the air about the PassivhausA residential building construction standard requiring very low levels of air leakage, very high levels of insulation, and windows with a very low U-factor. Developed in the early 1990s by Bo Adamson and Wolfgang Feist, the standard is now promoted by the Passivhaus Institut in Darmstadt, Germany. To meet the standard, a home must have an infiltration rate no greater than 0.60 AC/H @ 50 pascals, a maximum annual heating energy use of 15 kWh per square meter (4,755 Btu per square foot), a maximum annual cooling energy use of 15 kWh per square meter (1.39 kWh per square foot), and maximum source energy use for all purposes of 120 kWh per square meter (11.1 kWh per square foot). The standard recommends, but does not require, a maximum design heating load of 10 W per square meter and windows with a maximum U-factor of 0.14. The Passivhaus standard was developed for buildings in central and northern Europe; efforts are underway to clarify the best techniques to achieve the standard for buildings in hot climates. standard within the green building community. In fact, it's becoming downright inescapable in these hallowed halls, forums, blogs, and seminars. So naturally it's time for the less-than-hallowed reaches of the blogosphere, such as the Green Architects' Lounge, to jump in and join the conversation.

Home Energy Monitoring, Part 3: The Wrap-Up

Posted on February 23, 2011 by Christopher Briley

In this final part of the episode, Phil and I continue our chat with Peter Troast of Energy Circle about home energy monitoring. We conclude this epic trilogy by discussing:

  • Cost. How much are these systems going to set you back?
  • Renewables. These are the perfect tools for monitoring the generation of electricity by your installed renewables too.
  • Home Energy Monitoring, Part 2: Types of Monitoring Systems

    Posted on January 25, 2011 by Christopher Briley

    In Part 2 of this episode, Phil and I continue our conversation with Peter Troast of Energy Circle and delve into the different kinds of home energy monitoring systems available to the homeowner. From the Kill A Watt outlet monitor that you can rent from your public library, to the full circuit-by-circuit monitor you can access from your iPhone, we try to cover it all.

    Types of monitors discussed in this part of the podcast:

  • The single outlet monitor, like the Kill A Watt
  • Home Energy Monitoring, Part 1: Knowledge Is Power

    Posted on January 18, 2011 by Christopher Briley

    For this episode, Phil and I are joined by Peter Troast of Energy Circle to discuss home energy monitoring. Most people, I think, live their lives without much thought given to the power they are consuming when they turn on a device. They're more focused on the task at hand.

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