The Architecture 2030 Challenge

(Image - transit-oriented development in Murray, UT)

Utilizing data from the U.S. Energy Information Administration, the folks at Architecture 2030, a non-profit organization based in Santa Fe, New Mexico, concluded that buildings use 48% of the energy consumed in the U.S. The calculation includes the energy that is embodied in the products used to construct the buildings (8%). The remaining 52% is used in transportation (27%) and industry (25%). Looking just at electricity, as much as 76% of our annual consumption is used in buildings to operate space and water heating systems, appliances and lights. CO2 emission levels correspond, with approximately 45% attributed to buildings of all types.

With these numbers providing context, it is clear that reducing the energy consumption associated with buildings should be a priority. The Architecture 2030 Challenge puts some numbers on this priority, stipulating that new buildings should immediately utilize 50% less fossil fuel energy than was previously considered standard practice. The savings target increases to 60% as of 2010 and rises to 100%, or carbon neutrality, by 2030. Carbon neutrality means that no fossil fuels would be used in the operations of new buildings.

The group also stipulates that 50% of the buildings being renovated should achieve the same targets. Importantly, they also call for design schools to change the curriculum as necessary to train new architects and designers to prepare them for their roles in achieving these objectives. The U.S. Conference of Mayors and the American Institute of Architects have endorsed the 2030 targets, as have governmental jurisdictions and others.

How will these targets be met? First, by utilizing creative design strategies such as:

1. appropriate neighborhood and project designs that reflect smart growth, acceptable levels of density, and a pedestrian and transit orientation

2. attention to building shape, color, placement and orientation so as to maximize effective use of daylighting and passive heating and cooling

3. use of materials with lower embodied energy and with properties that reduce energy use and emissions

4. landscaping that complements energy efficient structures and that reduces water and energy use

Second, by integrating appropriate renewable energy technologies, including solar water heating and solar electrical generating (photovoltaic) systems, and technologies such as shading systems, in a way that complements the design of the building.

Third, by offsetting up to 20% of the energy requirements by purchasing renewable energy and/or certified renewable energy credits.

In the following posts I'll look more closely at the Challenge and the recommended strategies.