Green roofs

The Green Teams Part III

See? It's just so pretty!
Photo Source: http://levisstadium.com/
I was in San Francisco for Super Bowl XLVII; it was devastating. I’ve never seen the city so depressed. There’s hope for 49ers fans, though, as well as a new, shiny stadium. Santa Clara is their new home and, boy is it beautiful. It’s crazy efficient, too! There is a 20,000 square foot green roof… I know, SO cool. The stadium is using reclaimed water for drinkable and irrigation purposes and has incorporated recycled materials into the design. The stadium is also partnering with local vendors to create farm-to-table options for ticket holders. How awesome is that? And in addition to these already ground-breaking inclusions, a local company called SunPower is partnering with the new Levi’s Stadium to supply enough solar panels to produce sufficient electricity to compensate for all the power used for home games each year. True story.

I think (I hope!) the publicity of this installment as well as the one at the Pocono Raceway will help convince solar-naysayers that this great country we live in CAN produce ample amounts of renewable energy and maybe we should start viewing it as a reliable and clean supplier of grid power. I understand there’s a high initial cost, but there are loan and third party programs out there, among others. If solar can be implemented and rewards can be reaped on such a huge scale AND in a setting we all enjoy and support daily as a united community, we should be able to incorporate it on a smaller scale, too, without so much backlash, don’t ya think?

Speaking of renewable energy on a large scale, Progressive Field, home of the Cleveland Indians, installed solar way back in 2007 (the stadium was one of the first in the US to do so). The Indians have really been getting after energy savings through green initiatives. The stadium was also the first in the MLB to install a wind turbine. Installed last year, the turbine incorporates LED lights and kiosks for fans to learn about wind energy. See Mom, sporting events can be educational, too! Furthermore, staff attends an annual class about the stadium’s newest green practices, encouraging them to implement their knowledge at home and in their communities. Start on a small scale and cause a chain reaction… I’ve always believed this is the way to get people on board to save the environment!


The Indians also have some great ideas for future projects, which include following in the footsteps of the 49ers and building a green roof. I know I’ll probably be judged and condemned for saying this, but even though popcorn and hotdogs are the staple snack at baseball games, I am a sucker for fruit right off the tree and veggies right out of the ground. I would be more than happy to pay $20 for that and be able to pick it myself IN THE STADIUM than pay that kind of money for some processed meat and watery beer (sorry Keystone and Miller Light lovers! I’m really just not into it. The commercial above is more up my alley.).  Want to read more about the Indians and their energy-saving super powers? See pages 69-72.

NHL fans, I have not forgotten about you! Plus, even the NCAA is implementing sustainability programs. The big leagues aren’t the only ones who get to have all the fun! Stay tuned, loyal followers. More energy efficiency in sports to come!

A Green Thumb On America's Rooftops



Have you ever looked closely at a map of California? Fresno and Tulare counties are almost dead center.

That is significant for one very good reason. A central location means companies that truck merchandise can reach the bulk of the state's 37 million or so residents in one day. That's why Best Buy, Gap, Walmart, Sears and other heavy hitters have massive distribution centers in the region.

And those warehouses have expansive roofs. Hundreds of thousands of square feet could generate power through rooftop solar, or they could cut energy costs and water runoff by going green - literally.

Borrowing a concept popular in Europe, green roofs - complete with sod and plants - are being planted in New York, Washington D.C., Chicago, Portland and other American cities, according to this fascinating story in environment 360 by Bruce Stutz. The vegetation requires little upkeep, and helps lower power bills and water runoff.

As evidence, Stutz cites a U.S. Postal Service distribution center in Manhattan that has cut storm water runoff into the city's municipal water system by up to 75% during the summer and 40% in the winter. The green roof has also has cut the building's energy use by $30,000 per year.

Chicago has really embraced the concept. That city added 600,000 square feet of green roof last year, and has 600 projects planned. However, Illinois was also the site of an interesting structural collapse when a portion of a green roof fell in. According to this New York Times story, ice could have prevented meltwater from draining.

Portland has a program for residential and commercial properties. “It was a cost/benefit evaluation,” city storm water specialist Tom Liptan told Stutz. “The issue here was storm water. We were trying to find a way to reduce the burden on the city. If we trap it on the roofs, we don’t have to build bigger pipes to carry it or cisterns to store it for treatment.”

Climate and environment help dictate the type of plants to be used, and their effectiveness. Researchers at Colorado State University tested a variety of species and came up with recommendations. Here is a link to their findings, and links here, here and here to studies of regions with Mediterranean and desert climates.

Energy and water conservation in California are becoming bigger issues, particularly in light of stories like this. Maybe making rooftops do double duty would help.

Photo of green roof of U.S. Postal Service building