Entellis is on the forefront of the multifamily Passive House wave
Teresa Hamm recently finished a project in Washington utilizing a Solar Thermal system. In just three months, her project has pre-heated 171,000 gallons of water-that’s like 10 swimming pools! And the SRECs speak for themselves, with almost $3200 to date. Not bad for solar thermal in a cold winter.
Today leading businesses and environmental groups will join hundreds of thousands of people across the US and around the world in support of the Solar Energy Industries Association’s (SEIA)
Check out our SunPower report for the solar generation on our first PV installation in downtown DC. Join us and the SEIA to Shout Out for Solar! This event marks the launch of a new “America Supports Solar” campaign, which highlights the amazing growth solar energy experienced just in the last year. It’s been record-breaking! When all’s been said and done, solar is expected to account for more electric capacity in the US in 2013 than any other renewable energy source.
How will you give Solar Energy a shout out today?
This week, Baltimore experienced some of the coldest weather we’ve had in 2 decades.
(Baltimore Green for Everyone, Fernhill Passive House)
Our Affordable Passive Building Project, Baltimore Green for Everyone, is performing exceeding well. We went to do preliminary blower door testing and found some surprising results. Our BG4E home, with no heating system yet installed, after a night of -4 degrees and days of record cold (the coldest in 20 years!), remained above 50 degrees.
Our energy model told us this would happen, but it really was remarkable to open the door, step out of the freezing cold morning and into a warm unheated house. We have not even installed the electricity and the house is retaining heat!
The key to our comfortable low energy home, thoughtful design, was founded on 2 simple concepts:
Minimize Heat Loss - Optimize Heat Gain
None of it is rocket science, but we got there this way:
For the record, this goal was achieved for roughly the same cost as non-Passive House projects built to code, but on an affordable housing budget.
In the next coming weeks, we will blog on the various design strategies that yield this remarkable result.
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ps-we were on the phone this week with Passive Building colleague, Tom Basset-Dilley, of Chicago. He told us that despite their record breaking lows (colder than the South Pole!), his Passive Building design also maintained indoor comfort with minimal heating system (mini split heat pump, typical of many passive buildings).
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Also this week, we also heard from Ed Gaddy, former client of Michael Hindle (Entellis’ Passive House & Building Science Consultant). His Passive House, currently under construction in Clarksville, experienced similar comfort levels despite the frigid temperatures.
Non-heated house, with only a dehumidifier running, and still missing 5.5” of wall insulation:
Ed’s house is a wonderful LEED Platinum, Zero Energy, Living Building Challenge Passive House Project. Check it out at his blog here.