A couple questions for this group. I know we're having a Green Commons meeting on this next week. But can anyone comment on the following questions?

-Have you or your firm split the benefit of the 179D with a client? Is this typical?

-Is prevailing wage a requirement for all 179D benefit, or does it follow the same lines as... Read more

Are you or companies considering joining RE100? http://there100.org/going-100

"Companies joining RE100 make a global, public commitment to 100% renewable electricity.

To achieve this goal, they must match 100% of the electricity used across their global operations with electricity produced from renewable sources – biomass (... Read more

Hello Everybody,

I would like to invite you all to an event being hosted by the AIA Seattle COTE.  This is the next event in a series entitled Pathways to Decarbonization.  Date and time: May 13, 12:00pm - 1:00pm 

Description:  Universities are learning laboratories to explore and implement solutions to our greatest challenges... Read more

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With depth of thought and a broad view of the horizon, Candace Pearson can take a nuanced vision and sharpen it into focus, propelling the team around her forward. Operating in all three of BuildingGreen’s service offerings—publications, consulting, and peer networks—she finds pragmatic ways to fundamentally shift how we create our built... Read more

Hi All,

USGBC MA is doing a study on the cost of net zero energy buildings in MA.  I’m wondering if you all have any data to share on plug loads in ZNE projects. I’m looking for single family res, 2-4 unit residential, +/- 60 unit residential, 10-12 story office, and k-12.  The engineers have presented initial results and their... Read more

Hello all,

Does anybody know of a substitute for Ecotect's solar tool? I use it to very quickly test shade options and I love how I can easily test horizontal and vertical elements, tilting and rotating them. I can have a window with the façade on one side and the sun path with the shadow mask on the other side. It is easy to use and... Read more

Welcome to the quiz portion of Changing Building Design Priorities for a Changing Electrical Grid!

Learning Objectives
Upon completing this course, participants will be able to:


Define a “Highly Variable Renewable Energy” generation asset, or VRE, and understand how VREs can most effectively contribute to the... Read more

Welcome to this practice session for the LEED AP v4 exam, and good luck!

All the exam questions and explanations that follow were authored by Alex Spilger, LEED AP BD+C of GreenStep Education, and are provided in this BuildingGreen "exam simulator" through a special partnership with GreenStep and with our friends at the Poplar Network.... Read more

Hello All,
Checking in on experience with Armstrong's Tectum E-N with NEOPOR Graphite polysytrene GPS rigid foam insulation core in roof panels for exposed structure?
BASF says that NEOPOR uses up to 30% less material than other rigid foam; it is greenguard gold cerified. 

Interesting that the NEOPOR increases in R-value as... Read more

Was anyone else surprised to see ASHRAE 228-2023 using eGRID Subregions for both the Regional Electricity Source Energy Conversion Factor and Regional Electricity Greenhouse Gas Emission Factors? In the past I have used eGRID sub-regions but also State and local utility conversion factors depending on what energy or operational carbon story I... Read more

Remember 2013? LEED version 4 had just been released to the public. Hardly anyone was using it, though—not only because they didn’t have to, but also because there just wasn’t a pathway to achieve many of the new credits in the rating systems. Especially the product-related credits in the Materials & Resources category, along with the Low-... Read more

I'm looking for products that have cradle to cradle documentation, as well as EPD's & HPD's and are red list free.  What are your go to websites when you're researching products?

I thought some folks here might be interested in a webinar we have coming up this Thursday 12/6 on the topic of best practices for occupant comfort surveys. Although this webinar is part of our Roast launch series, it will be tool agnostic, with information that will be applicable to any occupant survey regardless of tools used. 

To... Read more

Is everyone else having trouble with a dysfunctionally slow LEED-Online today (i.e., worse than the usual incredibly slow performance)?

Hi All:

Several of us have been meeting on a weekly basis to discuss LMN's Path to Zero Carbon Series. Each week we have a new facilitator who leads the discussion of a single post. We've had great discussions and are creating "Call to Action" items for each post to amplify the message..."It's not about the glory, it's about the ripples... Read more