PURETi Transforms Surfaces into
Self-cleaning, Air Purifying Materials.

PURETi partners with Northwestern on DOE Solar Decathalon entry

House by Northwestern team members speak during a information session in the Technological Institute on Tuesday. The project is set to break ground in May.

House by Northwestern gets green light to start building solar home

APR 2017 Campus News

The Institute for Sustainability and Energy at Northwestern (ISEN) is the primary University supporter of House by Northwestern. Article originally appeared in The Daily Northwestern.

After months of planning, Northwestern’s first solar-powered home is set to break ground in May.  “We’ve spent a lot of time putting things together on paper and now we actually get to put things together in physical form,” said McCormick junior Bill Bach, the house’s project manager.

House by Northwestern will start construction at a lot near the intersection of Colfax Street and Orrington Avenue, said Maggie Waldron, HBN director of program operations, partnerships and communications. The house is expected to be completed by the end of July, Waldron said.

Bach said he is most excited to see the house come to fruition.  “I love that you’re just doing things that are actually tangible and will make a difference, so it’s not just an academic exercise,” he said.

In October, the team will present its completed house in Denver, Colorado at the 2017 U.S. Department of Energy Solar Decathlon, a competition that challenges collegiate teams worldwide to design and build functioning solar-powered houses. This is the University’s first time participating in the competition, Waldron said.

With a project budget of $1.4 million, the completed house is expected to feature enough energy-saving technology to be net-energy positive and 90 percent more energy efficient than the average home, Waldron said.  “Each component in the house is highly efficient,” she said. “Together, it’s a very high performing house.”

Like many of the other houses in the competition, the HBN project will have solar panels that are connected to a residential battery, which stores the solar energy and results in a structure that will supply all its own power, Waldron said. The house, however, will still be connected to the electrical grid, she said. An advanced heating and cooling system, which is four times more efficient than average systems, is also going to be used to save energy, she said.

In addition to the sustainable technology, the interior and exterior of the house will be coated in PURETi, which is a clear photocatalytic compound that breaks down airborne pollutants when it comes into contact with sunlight, Waldron said.  “It’s both on the inside and outside purifying the air, so it’s going to be a healthier space to live in,” she said. “It’s a house that’s not just good for the environment, it’s good for you.”

The project not only supports the University’s commitment to sustainability, but it also provides a hands-on learning opportunity for all the students involved, Waldron said.

McCormick junior Andrew Crane, the project’s construction manager, said he has been able to apply what he has learned in his classes to his role on the project.  “What I learned in the fall quarter was how you accept bids from contractors and award those, and I’m now doing that,” Crane said. “What we did in the classroom on paper is what I’m doing right now, and it’s in the real world.”

Waldron said the team is still recruiting new members as the decathlon nears. Opportunities include being a tour guide for the house in Denver during the competition and designing multimedia communications for the competition exhibit, she said.