Walgreens Announces Plans for "Zero Energy" Retail Store
March 12, 2013 9:23 AM
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Walgreens plans to build a facility that makes more energy than it needs
Walgreens is a pharmacy chain within the United States that seems to have several stores in just about every modestly sized city. Like many large corporations, the company is working hard to reduce the amount of energy that its locations consume. Part of this push is to gain itself some green credibility and another part of the push is to help reduce the amount of money the company spends on electricity.
Walgreens has announced that it will use a number of green technologies to construct a zero energy retail store. The company believes that the location will be the first net zero energy store within the United States.
“We are investing in developing a net-zero store so we can learn the best way to bring these features to our other stores,” said Thomas Connolly, Walgreens vice president of facilities development, in an interview with Energy Manager Today.
The company will rely on large solar panel arrays,
, and LED lighting. Individually, these technologies have all been around for a number of years.
For instance, Philips offers its
Hue LED light bulb
for anyone who wants to try out green lighting. The good part about Hue LED light bulb and a myriad of other brands that are available on the market is that not only do they consume significantly less energy than a traditional incandescent light bulb, but many of them also allow you to tune the color of the light to your preference.
LED bulbs also last much longer than a traditional incandescent bulbs and produce less heat. In a large retail environment with a huge number of bulbs there is a potential to significantly reduce the energy needed to cool a location thanks to less heat output from an LED bulb.
Solar panels will play a big part in the zero energy building Walgreens is constructing. The concept drawings of the facility show the entire roofing surface covered with
. It's unclear what sort of solar panels Walgreens will use, but they will undoubtedly be
among the most efficient
available on the market.
Geothermal electricity production is also nothing new. Back in 2009 researchers at MIT developed a
that they believe can provide 10% of the electricity needed in America by 2050. Geothermal energy, much like solar power, produces little or no pollution and doesn't require fossil fuels to produce electricity.
Walgreens plans to build its zero energy location in Evanston, Illinois. The building will be constructed at the intersection of Chicago Avenue and Keeney Street. There is an existing Walgreens location at that address that is now being demolished to clear the way for one of the greenest retail buildings in the country.
Walgreens estimates that the store will require 200,000 kWh of electricity per year and will generate 256,000 kWh of energy each year. Energy production from the store will of course vary depending on weather, store operations, and the system performance.
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3/12/2013 10:03:40 AM
Illinois seems an odd spot for a flat solar roof. In the winter the low sun angle will heavily cut down on power output even when it's not covered by snow. It's a reasonable option in the south; but up north if you're doing solar the southern side of a roof sloped to shed snow would work a lot better.
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