What is electrical Peak Demand?
electrical Peak Demand is the greatest amount of electricity that GUC must
supply to all its customers at any given time, in any one month. Unfortunately,
GUC does not actually know what the Peak Demand will be, when the Peak Demand
period will occur, or when it has occurred until the month is over. GUC
forecasts Peak Demand periods by analyzing anticipated unusually high or low
temperatures, the current weather, average hourly industrial and residential
usages, and known constant demands. GUC alerts its large customers of
anticipated Peak Demand periods. ECU is one of many large customers receiving
services from GUC in the region making Peak Demand prediction even harder.
Why does Demand matter?
of GUC is to provide every industrial, institutional, and residential customer
with adequate electrical power whenever it is needed. Therefore, GUC must be
prepared to supply the maximum amount of electricity that might be demanded.
Just as you "buy" electrical power from GUC, GUC "buys"
electrical power from the North Carolina Eastern Municipal Power Agency
(NCEMPA). During the lower "normal" electrical load periods, GUC pays
only pennies per kilowatt-hour. However, during a Peak Demand period, GUC may
pay nearly twenty dollars per kilowatt-hour. GUC, in turn, passes Peak Demand
rates onto its customers.
How does Demand affect ECU?
demand during anticipated Peak Demand periods allows the University to save on
the overall cost of electricity. Also, reducing the overall electricity usage
saves the University some on monthly charges. In fact, a concerted effort by
the University community to reduce electricity consumption during Peak Demand
periods coupled with several energy saving renovations has reduced the
University's electrical expense by as much as $50,000 in one month. This amount
of savings every month could translate into an annual savings of $600,000.
Demand charges are very high during a Peak Demand period. For example, during
the normal electrical load periods, ECU pays $.05 per kilowatt-hour of
electricity that would power three PCs or ten 100-watt light bulbs. However,
during Peak Demand, that same kilowatt-hour powering those same PCs or light
bulbs will cost ECU $12.75. Therefore, there can be tremendous savings to ECU
if less energy is being used during Peak Demand.
advantage of ECU using less power during Peak Demand is that this helps GUC
keep the cost of what you pay for electricity at home lower.
What can I do to control Demand during a Peak Demand period?
many ways that you can help control demand. During Peak Demand periods, turn
off all unnecessary lights and equipment including radios, fans, window air conditioners,
etc. Your efforts do make a difference! But, remember, you must still be able
to do your job. Peak Demand period has been announced. If every employee acts
as an energy conservationist, especially during Peak Demand periods, the
University will reduce its electrical expense. And, the savings may translate
into more funds for other beneficial University expenditures and possible
savings on your own electric bill at home.
Are there other reasons to reduce electrical consumption?
another very important reason to reduce electrical consumption. The generation
of electricity creates pollution. If not merely by its generation, then by the
pollution produced in making and installing more transmission lines,
transformers, substations, control equipment, and the associated construction.
By reducing our electrical needs, we reduce the amount of pollution that would
have been generated. Not only is energy conservation good for the University,
but it is good for the environment and our community; more importantly, it is
the right thing to do.
Peak Demand periods are important, it is also important to save electricity on
a routine basis to help reduce electrical costs. While you may not think your
participation in these energy savings activities make a difference, remember
that when your efforts are added to the efforts of a thousand other ECU
faculty, staff, and students, it adds up to a big difference. To see how much
energy is used by various kinds of appliances and equipment visit http://www.guc.com/Residential/OperatingCosts.aspx.
Is it more cost effective to leave a fluorescent light on for an hour
rather than turn it on and off 5 times within that hour with a total burn time
of 5 minutes?
more cost effective to turn off a fluorescent light when not in use - even for
short periods of time. According to the EPA, the advances in lighting
technology over the past years have made the energy used to start a fluorescent
lamp comparable to 5 seconds or less at normal operation. Consequently, turning
the lights off for more than 5 seconds will save more energy than leaving them
How can I help save electricity on a daily basis?
A Green Holiday is an observed extended break which serves to boost employee morale by providing a well deserved break, as well as reduce campus utility consumption through minimizing heating, cooling and electrical loads during the holiday.
The University Winter Break schedule for December 2017 provides for an extended period of 10 days when the University will shut down most operations (visit the University holiday website to view the schedule: http://www.ecu.edu/cs-admin/HumanResources/Holiday-Calendar.cfm.
When leaving for break, occupants are asked to turn off and reduce electrical loads as much as possible. In addition, certain building temperature set points will be reduced to further extend the conservation opportunities (campus research labs, occupied support spaces, and patient care areas are excluded from the setback). As a result of everyone's combined efforts, the University conserve both electricity and natural gas; thereby helping the University reach its required 40% energy reduction by 2025 and reduce the net impact on the environment.
For areas included in the setback listed below, a formal exemption request can be submitted for evaluation for exclusion from the setback (see building lists and exemption request link below). Exemption requests must be submitted by December 15th for evaluation.
Those who choose to be on campus during the break can expect to find many buildings with decreased lighting and cooler temperatures. In accordance with the defined holiday schedule, buildings will not be returned to normal occupied conditions until the end of the break.
Main Campus will be closed Saturday, December 23rd, 2017 through Monday, January 1st, 2018
Main Campus Building Setback List
Health Science Campus will be closed Saturday, December 23rd, 2017 through Monday, January 1st, 2018
Clinics may be open Wednesday, December 27th and Thursday, December 28th.
Health Science Campus Building Setback List
Starting in 2013, ECU participated in a lighting performance
contract with several other institutions in the UNC System. The project
replaced 30,000 fixtures and was paid for through an innovative financial
agreement that utilizes cost savings from the more efficient Light Emitting
Diode (LED) light fixtures to pay for the installation.
This energy monitoring
system is utilized at ECU to monitor real-time electrical energy consumption at
most buildings on campus as well as the Dental School’s Service Learning
Centers located across the state. Our goal is to utilize the dashboard feature
of PME to stream real-time graphics to individual building monitors located in
central lobby areas so that building occupants can reduce consumption.
Campus Living utilizes this system for monitoring energy
consumption in the residence halls. Twice per year residence halls on campus
use the Lucid Dashboard to host the Watt Watch Energy Challenge, in which dorms
compete against one another to see who can reduce energy the most over a month-long
period. The winning dorm is awarded with
a party sponsored by Campus Living.
one of the most heavily used buildings on campus. Due to its longer operating
hours and the need to maintain archival storage standards of temperature and
humidity, energy consumption is high. This year, ECU is upgrading much of the
HVAC, optimizing its chiller plant and replacing outdated pneumatic controls.
When complete, the efficiency will be greatly enhanced.
At ECU’s West Research Campus, the main
facility is heated with propane-fired gas boilers. In 2015, the building’s
aging chillers were replaced with a more efficient chiller along with a
separate heat exchanger which extracts “waste” heat from the water returning to
the chiller and uses it to preheat the boiler water. This has resulted in a 70%
reduction in propane use.
Three of our older facilities with
single-pane windows have had thermal film installed. This has resulted in
reducing - by more than 90% - the infrared radiation passing through the glass.
With the reduced heat load, the air conditioning works less – saving energy –
and the aesthetics of the buildings are also improved.
Powersol Umbrellas have been installed. One is located outside of Jones
Residence Hall and the other can be found in the East Carolina Heart Institute
Atrium. These umbrellas have solar
panels on top that power the charging station near the table top. These devices demonstrate the capabilities of
solar power and allow up to three mobile devices to charge simultaneously. The
intelligent USB charging ports sense when a device is charged and the LED display
indicates power stored and available.
required to operate one standard fume hood costs ECU an estimated $7,000 per
year! In fact, the energy required to condition and then move the air through
the ductwork in one hood can be three- to four- times the amount to operate an
entire residence for a year. Heating,
Ventilation and Air Conditioning (HVAC) controls in laboratory facilities are
programmed to provide a safe number of air changes per hour (ACH) when fume hoods
are operated in an area. For these reasons, ECU is launching a new program for
when ventilation equipment is out of service for maintenance or there is no
research planned for the near future, the ACH must remain the same until the
sashes are securely closed and equipment is decommissioned. Once that is
accomplished, HVAC personnel can then reduce the number of air changes per hour
in the workspace – greatly reducing the operating costs of the affected portion
of the building. When it is determined a
decommissioned hood is needed for upcoming research, Campus Operations will
cover the cost for EH&S to retest the equipment and – upon successful test
results – will re-commission the equipment for use and Facilities Services HVAC
will adjust the Building Automation System accordingly to provide safe
ventilation flows throughout the lab.
Similar to Campus Conservation Nationals
(CCN). ECU has hosted a Watt Watch Energy Challenge in the residence halls on
Main Campus for the past two years.
Typically, this competition challenges dorm residents to work together
to reduce electricity consumption and mitigate the impacts of climate change. In
recent years, the competitions have resulted in 6-9% energy reductions and over
$80,000 in avoided energy costs for participating dorms!