“People think DOT’s color
is either yellow from our
trucks or orange from
our construction cones.
Today, DOT has a new
color — green.”
— NCDOT Secretary Gene Conti at
the opening ceremony, October 2009
A geothermal heat pump system, employing 13- to 300-foot-deep (4- to 91-meter-deep) wells,
provides the heating and air conditioning for the main building.
and provides real-time data on temperature,
pressure, wind speed and precipitation.
All data collected by the monitoring system is constantly displayed at the visitor cen-ter’s;main;hall;tower.;There,;two;LCD;screens
provide the real-time information on savings
as well as more detailed information on each
how each system works and the savings pro-vided;by;each;system.;Then,;just;a;short;walk
away, they can observe the actual sustainable
the visitors, interpretive signage throughout
the building and site graphically depicts the
operation of each sustainable design element.
focused primarily on efficiency, passive heating
and daylighting and secondarily on geothermal,
solar water heating and photovoltaics.
Daylighting and Passive Design. The
daylighting strategies, facilitated by a good
on the main visitor center spaces as well as
implement a strategy that would result in
daylight providing two-thirds of the annual
demand for lighting during daylit hours of
the year. To ensure the performance of the
daylighting, we implemented dimming con-
trols coupled with motion sensors to reduce
the main visitor center, it was also possible
to integrate dual-function passive strategies
To enhance NCDOT’s goal of educating the visi- tors, interpretive signage throughout the build- ing and site graphically depicts the operation of each sustainable design element.
36 May 2011 SOLAR TODA Y
Copyright © 2011 by the American Solar Energy Society Inc. All rights reserved.