In addition to the portable compressors pictured in the previous blog entry, Okemo has a large snowmaking compressor that is a permanent fixture here. As part of Okemo's overall plan to reduce, reuse and recycle, we've just spent $30,000 to upgrade that compressor with an SCR catalytic converter so it will produce 95 percent fewer NOx emissions. Nitrogen oxides (NOx) include various nitrogen compounds like nitrogen dioxide (NO2) and nitric oxide (NO). These compounds play an important role in the atmospheric reactions that create harmful particulate matter, ground-level ozone (smog) and acid rain. Okemo's installation of a new SCR catalytic converter is going to help Okemo improve air quality while providing the same serious snowmaking power it is so famous for.
SCR, or selective catalytic reduction is a means of removing nitrogen oxides, often the most abundant and polluting component in exhaust gases, through a chemical reaction between the exhaust gases, a (reductant) additive, and a catalyst.
Last year, Okemo made news with its commitment to environmental stewardship through the purchase of renewable energy certificates - enough to offset 100 percent of the resort's annual use of electricity. In addition, Okemo owners Tim and Diane Mueller purchased enough kilowatt hours of wind-generated power to offset the electrical need of their other two resorts as well. That same commitment to the environment continues with the purchase of renewable enrgy certificates this year - and other aggressive programs like the one mentioned above.
“Protection of the environment is one of our core values. It is also very important to our guests,” says Tim Mueller. “We have the ability to demonstrate that Okemo, Mount Sunapee and Crested Butte are good community and corporate citizens working toward energy independence for America through clean, renewable sources like wind energy.”
Wednesday, October 24, 2007
Like the falling of leaves and the season's first frost, a sure sign of winter's imminent arrival is the delivery of Okemo's snowmaking air compressors. It's one of those special behind-the-scenes moments that turn a resort worker's thoughts to snow-covered trails and first tracks on newly opened runs - one of the perks of working in the ski industry.
With Okemo's Blogger Central offices located within earshot of those compressors, it's just a matter of time before we hear those first blasts of air that signify the arrival of cooler temperatures and the start of snowmaking operations.
Although Okemo's crews have the process down to a science, the concept of snowmaking is relatively simple. When you combine compressed air and water in the right combination, based on temperature and humidity, the result is snow! The serious cost to snowmaking comes through the production of that compressed air. It takes energy to do that.
Okemo has made huge investments in reducing the amount of energy used to make snow. The most visual of those energy conscious efforts can be seen in the resort's arsenal of HKD tower guns. Old-fashioned ground and sled-mounted snowmaking guns generally produce snow at an air-to-water ratio of 10:1. HKDs can cover trails more efficiently and with a broader spread, using a ratio that is as little as 1:1. Imagine the savings in energy being used at that rate! And, because the water and air are being combined in nozzles attached to elevated towers, it gives the water molecules more "hang time" to crystallize and form nice, big, fluffy snow "flakes."
This year, Okemo will demo some new HKD technologies that will allow the resort to make snow efficiently at closer-to-freezing temperatures. You can read about this and other "what's new" news online at Okemo's Press Room. Cheers!