2019 October 21 Passive House Institute : Two New Zealand Window Manufacturers Win Certified Component Awards At The International Passive House Conference (China 2019)

I was happy to accept the TWO awards for Thermadura (Dunedin) and SEDA (Auckland) for their certified timber aluminium window systems. This is an incredibly competitive event and I was proud NZ manufactures scored two out of the four awards for the warm, temperate climate. Details of the competition and links below: “The 1st Prize Timber Aluminium in warm, temperate …

2019 October 18 ASHRAE: Drop It Low: 2019 LowDown Showdown Winning Design Increases Resiliency, Minimizes Environmental Impact

This is another example of the ongoing shift from an engineering focus on saving energy to saving carbon. In order to do this properly, system engineering needs to be emphasized to an even greater extent using multi-disciplinary optimization (MDO). “The goal of the annual LowDown Showdown design challenge is to model buildings that get as close to zero energy as …

2019 October 16: News just in from China

Jason Quinn reported back from the 23rd International Passive House Conference: “Technical PH people used to talk about saving energy—but at the conference, I kept hearing about saving carbon. That’s a big shift. The conference was as technically awesome as ever but everything in China scaled up. There was the conference dinner (2000 people and a full orchestra) and the …

2019 October 15 The Fifth Estate: Passive House Celebrated at Victorian Premier’s Sustainability Awards

“Passive House certified accommodation for Monash University students has taken out the Built Environment category at this year’s Victorian Premier’s Sustainability Awards held in Melbourne last week.” I expect that in the next few years all the buildings winning will be certified Passive House buildings. This is a great first example of extraordinary low operating energy of Passive House, as …

2019 October 7 Stuff: Regulation Needed To Push Owners To Reduce Fossil Fuels In Buildings, Expert Says

2019 October 5 Stuff: Regulation Needed To Push Owners To Reduce Fossil Fuels In Buildings, Expert Says

“Government regulation will be needed to achieve net-zero carbon buildings says architectural engineering professor Larry Bellamy.” Let’s hope those regulations are good ones that take building physics into account and don’t allow system-wide poor choices. I push energy efficiency every day, it’s what I do, but increased energy requires better building practices and not just stuffing in more insulation. Read …

2019 October 1 Build: How Airtight Do Houses Need To Be

This article doesn’t really come to a conclusion other than the old rule of thumb of divide the blower door ACHn50 by 20 to determine the average infiltration is not accurate. I know how hard it is to estimate the site wind speed from weather station data and then the pressure across the envelope and of course the ACHn50 number …

2019 October 1 Build: Energy Poverty In New Zealand

Paying utility bills is a stretch for many New Zealand households. As we move to a low-carbon economy, a raft of measures may be necessary to ensure that energy costs do not weigh more heavily on those already financially burdened. Analysis using the Household Economic Survey, an annual survey run by Stats NZ that measures the economic wellbeing of New …