By Marshall Swearingen MSU NEWS SERVICE
BOZEMAN – In Yellowstone National Park’s
scenic Lamar Valley, where wolves and other wildlife are commonly sighted in
sagebrush flats tucked amid mountains, a cluster of cabins marks where bison
were brought back from the brink of extinction a century ago. Behind the rustic
log exteriors, however, a high-tech project is underway as Montana State
University helps the Lamar Buffalo Ranch become more energy-efficient and less
reliant on fossil fuels.
“There are one or two sensors in every
building,” said Megan Oaklief, an MSU junior majoring in mechanical
engineering technology. The sensors measure how much electricity and propane is
used by each of the 16 cabins and handful of larger buildings, including two
ranger residences.
The Lamar Buffalo Ranch is now used as an
educational facility that hosts K-12 students from around the country. Solar
panels were installed in the ’90s and were upgraded in recent years, and a small
hydroelectric generator was added. The facility is off-grid, meaning no
external electrical lines or natural gas pipes reach it.
Propane is still used for cooking, heating
water and running a generator that provides supplemental electricity, so opportunities
remain for making the facility more self-sufficient, according to Lynn Chan, a
project manager for Yellowstone National Park.
“We’re hoping MSU can help us understand
how much energy we’re using, how it’s being used, and, looking to the future,
how we can continue to reduce our energy use,” Chan said. The effort comes
as some of the cabins are being renovated to add insulation and other
efficiency measures. “Our goal is to try and reduce our propane use.”
For Kevin
Amende, associate professor in MSU’s Department of Mechanical and
Industrial Engineering, the off-grid buildings
present a valuable case study in how to balance the daily and seasonal
variations in solar and hydroelectric energy production with the equally
dynamic energy use resulting from groups of visitors coming and going.
According to Chan, the results could have an
impact beyond the Lamar Buffalo Ranch. “We would like to use this as a
model for other places in the park,” she said.
