Buying a home is a big, expensive deal. It’s important that you know what you’re getting. Ideally, prior to purchase, you should know about its performance in at least four categories: energy use, water use, indoor air quality, and building integrity. But, as a nation, we’re not there yet. We’re getting there, though.
A spokeswoman for student participants is reported to have said Solar Decathlon 2011 will be held at the National Harbor in Maryland, according to John McArdle, reporter for E&E News. I have not confirmed the accuracy of this information and there has been no official announcement of a location change to date.
Material ConneXion, a global materials consultancy, recently gave its material of the year award to Novacem for the company’s “carbon negative” cement. The product is being touted with increasing frequency and — it would seem from the literature — has the potential to change the world of concrete in 2014-15 when it hits the market.
Passive House is an increasingly popular low-energy standard. Passive Houses must be airtight (0.60 ACH at 50 Pascals) and low energy (4.75 kBTU/ft2/year max heating and cooling demand and 38 kBTU/ft2/year maximum primary demand) — requirements that slash energy demand by about 90%. Due to increasing popularity of Passive House, media mentions like this mini-series in The Tyee — are becoming more common.