Passive House in Portland: A Green Building Strategy To Achieve City’s Climate Goals
The recent boom in Passive House technology is beginning to make Portland, Oregon’s ambitious carbon emissions reduction goals a lot more doable.
Portland has long been recognized as a national environmental leader. For the past few decades, a host of green features – things like the bottle bill, the urban growth boundary, bountiful bike lanes, MAX light rail, and a rich tapestry of walkable neighborhoods – have placed our town at the vanguard of sustainability in the United States.
So it should come as no surprise that the City leads the nation in pledged carbon emissions reductions. The current goal is to reduce total carbon emissions to 40% below 1990 levels by the year 2030, no small undertaking given the major population growth projected for the metropolitan region during the same period.
Of course, given the severity of the global climate change threat, we need to be working toward goals like these. But how do we achieve success? Transportation reform, land use changes, and technology improvements are all key pieces of the puzzle, surely. But a big part of the solution has to be energy efficiency in housing. After all, fully 40% of the nation’s carbon emissions come from our buildings.
And in the world of energy-efficient housing, Passive House is the gold standard. What is a Passive House? A structure that employs a simple set of building technologies to achieve big energy efficiency gains. Really big. In fact, consumption is cut by 80-100% compared to conventional buildings. In a climate like Portland’s, one of these homes can be fully heated all winter long with a heater the size of a hair dryer.
Just what the climate doctor ordered.















