Check out this article by Sara Solovitch in Politico- The House That Could Save the World: the next generation of ultra-efficient houses will redefine how we fight climate change- and how we live. Several Portland Passive House projects are featured.
PGE's net metering annual billing cycle just closed for 2014/2015. TrekHaus West donated excess credit of 1921 kWh to PGE's low income assistance program for 2014/2015. This is more than the 1520 kWh donated for 2012/2013 and 1582 kWh donated for 2013/2014. Net positive for over 3 years now!
AVERAGE SOLAR ENERGY GENERATION: 14 kWh/day (May 8, 2012 to May 8, 2014)
Year 1: annual average of 13.7 kWh/day
Year 2: annual average of 14.1 kWh/day
(Note: Our 4.70 kW system was expected to generate average of 12.5 kWh/day)
AVERAGE ENERGY CONSUMPTION: 9 kW/day (May 8, 2012 to May 8, 2014)
Year 1: annual average of 8.8 kWh/day
Year 2: annual average of 9.5 kWh/day (colder winter)
Overall, NET POSITIVE by average of 5 kWh/day. This is enough electricity to run a Nissan Leaf about 5500 miles per year or 15 miles per day.
PGE's net metering annual billing cycle just closed for 2013/2014. TrekHaus West donated excess credit of 1582 kWh to PGE's low income assistance program for 2013/2014. This is a little more than the 1520 kWh donated for 2012/2013.
Just celebrated Christmas and our 2nd year anniversary living in TrekHaus West! It's not a fluke. We are still net positive after 2 years. Here's our 2013 energy checkup...
TrekHaus West Year 2 (12/26/2012 to 12/26/2013)
Total Energy Use 2nd Year: 3361 kWh
Average Energy Use Per Day: 9.2 kWh/day
Total Energy Generation 2nd Year: 4960 kWh
Average Energy Generation Per Day: 13.6 kWh/day
2013 Excess Generation: 1599 kWh
Our average daily household energy use has been quite consistent over 2 years, averaging about 9 kWh/day both in 2012 and 2013.
Happy 2014 everyone!
PDX Living's next generation spec net-zero Passivhaus project in Portland...just introduced at welcome event for Dr. Wolfgang Feist's visit this week in Portland (http://sustainablebusinessoregon.com/articles/2013/09/portland-actively-prepares-for-passive.html). For a snapshot of CH2, check out the poster presentation given by PDX Living...
PSU graduate student Santiago Rodriguez presents poster on Evaluating Technologies for High Performance Residential Buildings at Oregon BEST FEST, September 11 & 12, 2013. Get a glimpse of the poster here...
For those of you living in homes with single pane windows, Indow Interior Storm Window inserts can really make a difference. Improves thermal performance and comfort. Reduces outdoor noise penetration. Average energy savings of 19% in pilot study conducted on four homes exceeds computer model which predicted 10% savings. Read about the PSU study in this article- Indow Interior Storm Windows Tested by Portland State. Details of final PSU report here.
O2Haus, Portland's 1st speculative net-zero energy passive house project, is featured in Green Building Advisor news article- A Net-Zero Passivhas Duplex in Portland. Kudos to Rob Hawthorne and Bart Bergquist of PDX Living for designing and building this great project!
Learn about 10 green building projects that "push the envelope in our built environment". The Portland (West Columbia) Chapter of the Northwest EcoBuilding Guild is hosting a 10x10x10 Green Building Slam Design Showcase on Wednesday May 29, 2013. Details at http://www.ecobuilding.org/events/10-x-10-x-10-portland-green-building-slam-desgin-showcase. Should be a great event!
Here's a peek at the TrekHaus presentation...
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