STATUE OF LIBERTY
LIBERTY ISLAND, NY
Lady Liberty has a surprising
feature underneath her feet
– clean energy from ground
source heat pumps. The 6,600-
square-foot Liberty Gift Pavilion (shown
at far left) that greets visitors to the
famous statue was renovated in 2010
with sustainability in mind. Drawn from
55-degree well water over 1,500 feet
below, water is pumped at a rate of
roughly 120 gallons per minute to heat
and cool the facility. Drilling took five
days and minimally impacted foot traffic.
The geothermal system has secured a
35% savings in energy. The well field also
eliminated the need for large exterior units,
reducing the building’s footprint. The system
helped the pavilion, which is owned and
operated by Evelyn Hill Inc., earn LEED
Platinum for New Construction.
THE MONTREAL BIOSPHÈRE
CENTER FOR ARCHITECTURE
NEW YORK, NY
Montreal’s Biosphère is an interactive museum dedicated to
environmental awareness. Due to its unique architecture, energy consumption
is substantial for this 48,437-square-foot geodesic dome.
Two pumps were placed just under 300 feet deep and provide 1,757 MWh of energy
per year. The installation cost $525,000 Canadian in 1998 and the payback period was
under six months.
The geothermal system, com-
bined with other efficiency strat-
egies like solar and wind, has
reduced energy usage by 459
MWh annually over a conventional
electrical HVAC option.
With a facade that’s over 40%
windows and a location in a cool
climate zone, this 21% decrease
supports sustainable mission of
the only environmental museum
in North America. M E U
Think geothermal can’t work
for an urban site? The Center for
Architecture, located in the Greenwich Village neighborhood of Manhattan, proves a
loop field can hide beneath a busy borough.
Installed in 2003 during a renovation,
a geothermal heat pump system draws
groundwater from two 1,260-foot-deep
wells that were drilled through the sidewalk
at the headquarters of the AIA New York
Chapter. It provides heating and cooling for
the 15,000-square-foot building, which is
comprised of offices and open spaces.
The geothermal system itself cost
$100,000, which was largely offset by a
grant from NYSERDA, and had a payback
period of three years. It is one of the first
installations in New York City.