energy efficiency & conservation
8
City of Raleigh
R
aleigh’s numerous environmental
initiatives
and
technologies
promote energy efficiency and conservation
within City operations. The commitment to conserve
energy, embraced by all departments, reduces
greenhouse gas emissions and equates to real dollar
savings for citizens.
INTELLIGENT BUILDINGS CREATE SMART SAVINGS
Energy efficiency is the City’s mantra, guiding decisions small
and large. Automated building monitoring systems are an
important tool, with more than 60 “smart” buildings
online now and plans to increase up to 90 in the
next four years. Automation drives peak efficiency
for systems and staff, and Periscope software
aggregates historical and comparative trendlines
for the big-picture overview. One ultimate goal
is to tie smart buildings into the smart grid, using
algorithms to shed imperceptible power loads over
the entire network during peak use times — shaving
costs without impacting comfort or productivity.
LEDs LIGHT THE PATH TO EFFICIENCY
A public/private partnership with LED innovator Cree, Inc. helped
the City of Raleigh earn the title of
First LED City in the World
through the early adoption of state-of-the-art solid state light
fixtures using a new energy-efficient lighting technology: light-
emitting diodes (LEDs). More than 75 separate LED projects (some
powered by the sun) now illuminate building interiors, parking
garages and lots, City Plaza downtown, the Cree Shimmer
Wall on the west façade of the Raleigh Convention Center,
traffic lights, and streetlights in five neighborhoods and parts of
downtown. These not only save energy, but provide significant
savings in maintenance costs and shine a brighter, whiter light
without “spilling” over into unwanted areas. The City realizes
more than $260,000 savings in annual operating expenses due
to this technology, with potential savings in the millions of dollars
as additional streetlights are converted. The City is also taking a
statewide leadership role in examining streetlight efficiency and
ownership structure as part of a greater energy policy discussion.
The Periscope dashboard provides a powerful “front end” for
existing building automation systems, accelerating our goals
for improved energy efficiency throughout the City.
ROADMAP TO RALEIGH’S
ENERGY FUTURE
The
Roadmap to Raleigh’s
Energy Future
framework
and
implementation
strategies come at a criti-
cal time as the City seeks to
reduce dependence on fos-
sil fuels while lowering emissions of
local pollutants and greenhouse gases.
This challenge offers tremendous opportu-
nities to rethink energy usage, protecting
environmental and human health while
expanding the local economy through
energy efficiency and innovation. The
emergence of the smart grid, distributed
energy, demand response and other
technologies will only hasten the need for
collaboration and education across the
entire organization.
Energy costs have steadily increased over
time; aggregated energy is now the City
of Raleigh’s second-largest operating
expense, second only to personnel-related
expenses. Long-term savings in operat-
ing and capital budgets will be realized
for taxpayers after thorough total cost of
ownership and business case evaluations.
This ground-breaking collaborative initia-
tive is the beginning of transformative
change for theCity of Raleigh’s operations.
ENERGY EFFICIENCY
INVESTMENT:
LEED PLATINUM
TRANSIT OPERATIONS FACILITY
CENTS PER SQUARE FOOT,
NEW FACILITY’S PROJECTED ENERGY
COSTS 2/3 LESS THAN OLD FACILITY
DUE TO 150 GEOTHERMAL WELLS,
RADIANT FLOOR HEAT &
OTHER MEASURES
31
¢
11
¢
vs.