stafford county public schools · stafford county public schools energy management plan ......

Stafford County Public Schools Energy Management Plan

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Table of Contents Introduction ……………………………………………………………………. 1 Goals and Objectives ………………………………………………………….. 3 Policy ………………………………………………………………………….. 5 Energy Committee …………………………………………………………….. 7 Operational Guidelines ………………………………………………………... 9 Appliances & Miscellaneous Equipment ……………………………………... 11 Information Technology – Computer Use ……………………………………. 13 Utilities ……………………………………………………………………….. 14 Performance Contracting ……………………………………………………… 16 Energy Star ……………………………………………………………………. 18 Commissioning/Retro Commissioning ………………………………………… 19 Equipment Efficiency ………………………………………………………….. 21 Conservation / Waste Reduction ……………………………………………….. 22 Education ………………………………………………………………………. 25 Capital Improvements …………………………………………………………. 28 Glossary of Terms ……………………………………………………………… 29 Appendix A – Policy 8201 – Facility Operation & Maintenance Appendix B – Policy 8202 – Energy and Resource Conservation Appendix C – Energy Performance Matrix Appendix D – Energy Savings Data Appendix E – Energy Conservation Resolution


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Introduction

Stafford County Public Schools (SCPS) maintains facilities for over 30,000 students,

teachers, and administrative functions in 34 schools and operating sites that comprise in

excess of 3.9 million square foot and over 1200 acres. Facilities Services through the

Operation & Maintenance Department has been charged with the responsibility to

provide oversight of the school division’s energy management program including

managing the energy resources purchased and consumed, ensuring this is done in the

most cost efficient manner and while promoting energy conservation and awareness

throughout the school division. Over the last ten (10) years, SCPS has experienced

extensive growth, seeing over 1,184,656 square feet of classroom, office, and activity

spaces added to the division’s physical plant. Our energy management program is

focused on providing superior support and oversight to our comprehensive K-12

academic environment, while simultaneously accomplishing energy conservation

responsibilities.


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Energy management in a complex ever-changing environment is a journey as much as it

is a destination. New technologies, growth, environmental concerns, the availability of

fuels and new regulations and codes are but a few of the challenges an organization must

address. SCPS Energy Management Plan is a roadmap to manage current and future

objectives and activities. This plan is implemented throughout the division at various

levels with the assistance of all stakeholders including students, teachers, staff, and

business partners. The implementation of this plan will be a continuous process as most

activities and projects in the realm of Energy Management are dynamic.


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Goals and Objectives

• Reduce non-renewable energy purchases by 20% over 2006 expenditures by 2012.

• Establish a School Division Energy Steering Group.

• Continue using energy performance contracting to install energy conservation measures

including occupancy sensors, efficient lighting, water conservation, efficient motors, and

variable frequency drives.

• Establish Operational Guide Lines for the School Division (temperature set points, hours

of operation, etc...)

• Ensure energy conservation measure and practices are included in all Capital

Improvement Projects including consideration of LEED, Energy Star and High

Performance Buildings standards, and other energy conservation initiatives/efforts.

• Provide standards and guidelines for appliance and portable equipment use throughout

the School Division including microwaves, coffee pots, refrigerators, and plug in heaters

from class rooms and offices.

• Establish and enforce conservations measures throughout the School Division including,

computer, printer, fax and copy machines.

• Develop and enhance real-time data tracking of energy use.

• Set facilities energy guidelines on a per facility basis

• Expand energy education opportunities throughout the School Division to include

students, teachers, staff, and business partners.


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• Establish and enhance partnerships with energy education organization to include

National Energy Education Development Project (NEED) and Alliance to SAVE

ENERGY.

• Continue implementation of commissioning and retro-commissioning programs within

the School Division

• Enhance energy conservation measures within the School Division’s vehicle fleet to

include general and special purpose and buses.

• Develop a rewards and/or competition program at the school level based on

energy conservation/savings.


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Policy

SCPS maintains two School Board policies that provide oversight and direction for the

division’s energy management program, Policy 8201, Facility Operation & Maintenance

and Policy 8202, Energy and Resource Conservation. The School Board adopted both

policies in June 2008 and the policies are reviewed annually by Facilities Services.

Policy 8201 – Facility Operation & Maintenance establishes its own program to include

all buildings, equipment, and associated infrastructure of the division’s physical plant.

The Facilities Operation & Maintenance Program includes but is not limited to preventive

maintenance, repair, emergency facilities response, energy conservation, equipment

replacement, protective coatings, custodial operations, snow and ice removal, and roof

and asphalt replacement.

Policy 8202 - Energy and Natural Resource Conservation establishes and maintains an

energy and natural resource conservation program. Energy Conservation includes but is

not limited to the reduction of energy consumed by the School Division in its processes,

systems, equipment, and organization, through economy, elimination of waste and

rational use. Natural Resource Conservation includes the responsible use of the earth’s

natural resources (lands, rivers, streams, topsoil, animals, forest, etc.). The School

Division has established an Energy and Natural Resource Conservation Program, which

measures conservation throughout the Division.


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The School Division, through the Pupil Transportation Department, also maintains a bus

idling standard operating procedure that requires all bus drivers to conserve fuel by

shutting down bus engines at appropriate locations and circumstances rather than having

the engines continuously run. The idling SOP, 10-14-07, allows idling of the engine for

no more than five (5) minutes. Turn off the engine when arriving at the school several

minutes before the dismissal. Restart the engine after the students have loaded and when

departure is imminent. If arriving more than five minutes early, especially if under an

enclosure where fumes may become trapped, you are to turn off your engines. If you are

waiting in line to unload students, you are not required to turn off the engine.


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Energy Committee

The SCPS Energy Management Plan shall incorporate an Energy Steering Committee to

provide oversight and guide the School Division’s Energy Conservation Program. The

committee will be organized with representatives from the following offices and

departments:

• Administrator from each school/site including the Gari Melchers and the

Alvin York Bandy Administrative Complex

• School Nutrition

• Pupil Transportation

• Fleet Services

• Safety & Security

• Energy Manager (Facilitator)

• Director & Assistant Director, Operation & Maintenance Department

(Chairperson)

• Capital Improvement Program (CIP) Citizen Advisory Committee

Chairman (Non-Voting)

• Director, Facility Planning, Design & Construction

• Supervisor of Math & Science

• Supervisor of Physical Plant

• Information Technology

• Representative - Stafford County Government

• Chief Facilities Officer (Advisor)


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The Energy Steering Committee will meet quarterly and present a program update to the

School Board in the fourth quarter of each fiscal year.


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Operational Guidelines:

Heating/Ventilation/ Air Conditioning (HVAC) Space Temperatures Set-Points

Occupied Mode (6am-5pm) Winter Summer

68 Degrees 73 Degrees

Unoccupied Mode (5pm- 6am) 60 Degrees 85 Degrees

Occupied and Unoccupied Mode (HVAC Systems)

Occupied mode of operations begins from 0 to 240 minutes (depending on outside weather

conditions) before the energy provider (Dominion Virginia Power or NOVEC) demand window

opens for high rates to take effect (7 o’clock AM September 1st to June 30th, Monday –Friday)

and (10 o’clock AM July 1st to August 31st, Monday –Friday). Unoccupied mode of operation

begins 2 hours after the students are released or 5 o’clock PM whichever comes first. Main

offices will operate until 6 o’clock PM.

All occupied spaces will be heated and cooled to achieve the stated temperatures above. Schools

and operating sites can adjust the set points in order to achieve these goals. Temperature should

be an average taken in the middle of the space being measured at a height of 3 foot.


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Special Events Scheduling

It is imperative that special events are reported to the Operation & Maintenance Department at

least 48 hours in advance through the TeamWORKS work order system to include: (1) the area

of the building that the event is going to take place and (2) the time and date(s) the event will

occur. The remainder of the facility will remain unoccupied. These areas will be programmed

as a special event and will revert to unoccupied mode upon the scheduled completion of the

event.

Holiday Scheduling (Thanksgiving, Winter Break, Spring Break, Summer Break):

Holidays will be scheduled as unoccupied events in the Energy Management System. The

unoccupied event will begin two (2) hours after the end of the school day preceding the

scheduled holiday and remain in place until the morning school is scheduled to resume. Any

special event scheduled during a holiday will need to follow the outlined process for “Special

Event Scheduling” as identified in the section above.

Summer School:

Facilities, which have been designated, for summer school shall operate in the occupied mode

during school hours only and when summer school is taking place. After school hours and non-

school days, these buildings will revert to unoccupied mode.

SCPS Park & Recreation Events:


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Facilities, which are used by Stafford County Parks & Recreation Department under the Joint

Facilities Use Agreement, will have the building controls set at the unoccupied mode

temperature settings during times of use; unless a change is approved by the Chief Facilities

Officer or his/her designated representative.


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Appliances & Miscellaneous Equipment:

Managing the proliferation of small residential kitchen type appliances and equipment in any

large organization is a challenge. Use of certain types of appliances and/or equipment not only

can increase the Division’s energy consumption but can also create safety and fire issues. At a

minimum, all appliances procured and used by SCPS are required to comply with the current

EPA’s Energy Star program and must be approved by the SCPS’s Energy Manager located in the

Operation & Maintenance Department prior to procurement. Existing appliance/equipment

purchased prior to May 2010, will be grandfathered. Individuals or groups in SCPS and facilities

do not authorize the following appliances:

• Space Heater (all types)

• Fans (electric)

• Air Purifiers

The following appliances and miscellaneous equipment are limited to approved areas specifically

designed to support these types of equipment. Approval for these areas can be obtained from the

SCPS Energy Manager located in the Operation & Maintenance Department.


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• Microwave Ovens

• Coffee Pots

• Ovens

• Toasters

• Refrigerators

• Mini Refrigerators

• Vending Machines

• Water Coolers

• Washing Machines

• Dryers

• Humidifiers

• Dehumidiers


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Information Technology – Computer Use

The Information Technology Department has established a “Go Green” program to help

conserve energy in computer use throughout the school division. “Go Green with IT” has the

potential to save in excess of $250,000 annually by the making mandatory changes to an

individual user’s settings resulting in the computer equipment going into energy conservation

mode after a specific period of time. For details on this program go the Information Technology

section of the School Division’s web site at www.staffordschools.net

http://www.staffordschools.net/�


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Utilities

SCPS consumes a variety of utilities including electricity, natural gas, propane gas, fuel

oil and potable and non-potable water. The SCPS Energy Manager is currently

responsible for managing purchased utilities for the School Division and reports on

utilities purchased from service providers. Our major utility providers are:

Electric: Dominion Virginia Power (DVP) – 54 accounts

Northern Virginia Electric Cooperative (NOVEC) – 4 accounts

Natural Gas: Columbia Gas – 22 accounts

Propane Gas: Various – 26 accounts

Fuel Oil: Various – 7 accounts

Water/Sewer: Stafford County Utility Department - 40 accounts

Typical Annual Utility Usage By Type

70.5%

19.9%

0.3%

9.3%

ElectricNatural GasPropaneFuel Oil


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Utility meters are read each month and the data is entered into the school division energy

tracking software program, Profile Manager. The data collected is a typical breakout out

of the utilities purchased by SCPS.

Due to the high growth and expansion of SCPS since FY2000, the utilities budget has

increased accordingly. In addition to considering growth in utilities budgeting, costs of

each utility fluctuate from year to year. Oversight of the cost of fossil fuel will be critical

in the future to ensure the School Division adequately budgets for natural gas and

electricity.


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Energy Performance Contracting

Energy Performance Contracting is a performance-based procurement method and

financial mechanism for building renewal whereby utility bill savings that result from the

installation of new building systems (reducing energy use) pay for the cost of the building

renewal project. A "Guaranteed Energy Savings" Performance Contract includes

language that obligates the contractor, a qualified Energy Services Company (ESCO), to

pay the difference if at any time the savings fall short of the guarantee. The

Commonwealth of Virginia through the Department of Mines, Minerals and Energy

(DMME), provides an Energy Performance Contract that allows all public bodies to

utilize.

In 2005, the School Division initiated a multi-phased energy performance contracting

effort utilizing the State’s Energy Performance Contract (see Appendix C). The goal of

the Division’s Energy Performance Contracting effort is to identify opportunities for

energy conservation/savings, in conjunction with the guaranteed annual savings from the

contractor.

Phase I: Completed in 2007, with an estimated guaranteed annual energy cost

savings of $440,000.00 per year. The energy conservation measures

(ECM’s) implemented included:

- New Efficient Interior Lighting

- Room Occupancy Sensors

- Sink, Urinal and Water Closet Water Conservation


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- Energy Efficient Variable Frequency Drives (VFD) and Motors

- Building Envelope (Windows, Sofitts, Eaves) Changes/Repairs

- Vending Misers

Phase II: Scheduled for FY10 & FY11; ECMs planned are:

- New Efficient Interior Lighting


- Sink, Urinal and Water Closet Water Conservation

- Energy Efficient VFDs and Motors

Phase III: Scheduled for FY14; ECMs planned are:

- New Efficient Interior Gym Lighting



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Energy Star

Energy Star is a joint program of the U.S. Environmental Protection Agency and the U.S.

Department of Energy helping individual Americans, businesses and governmental organizations

save resources and protects the environment through energy efficient products and practices.

SCPS uses tools from the Energy Star Program in promoting our energy conservation goals

including Target Finder during facility designs and construction efforts and Portfolio Manager

when evaluate existing facilities and their building systems.

Target Finder: SCPS has established a minimum Energy Star Target Finder score of 75 out of

100 for all new facilities, additions, and/or major renovations.

Utility Tracking Information: SCPS uses a utility tracking software program, Portfolio Manager,

to benchmark all of our schools and facilities energy use. Portfolio Manager allows the Division

to evaluate our schools and facilities energy use with like size and type across the United States.

This effort started in 2008 and is updated on an annual basis. The result of Portfolio Manager

and our monthly benchmarking of energy use allow the Division to evaluate our “worst” energy

consumers and establish plans to address this energy use including developing plans for retro-

commissioning efforts.


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Commissioning/Retro-Commissioning

Commissioning - Building commissioning provides documented confirmation that

building systems function according to criteria set forth in the project documents to

satisfy the owner’s operational needs. Commissioning (Cx) existing systems may require

developing new functional criteria to address the owner’s current requirements for system

performance. In 2006, SCPS initiated building commissioning for all new schools,

facilities, additions and major renovation. The Division utilizes a third party

commissioning agent or our in-house Energy Manager for this effort. Commissioning

services are typically brought on during initial design development and continue until

completion of the facility.

Retro-Commissioning - Retro-commissioning is a process that can be applied to existing

buildings that have never been commissioned to restore them to optimal performance.

Retro-commissioning (RCx) is a systematic, documented process that identifies low-cost

operational and maintenance improvements in existing buildings and brings the buildings

up to the design intentions of its current usage. RCx typically focuses on energy-using

equipment, such as mechanical equipment, and optimizes existing system performance,

rather than relying on major equipment replacement, resulting in improved indoor air

quality, comfort, controls, energy, and resource efficiency. RCx typically includes an

audit of the entire building and interviews with facility personnel, followed by diagnostic

monitoring and functional tests of building systems, which are then executed and

analyzed. Building systems are retested and re-monitored to fine-tune improvements.


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The process helps find and repair operational problems, as well as identify more

complex problems for the owner. Facility managers have shown that implementing retro-

commissioning efforts can provide energy savings up to and exceeding 40% of current

consumption.

SCPS initiated its retro-commissioning program in 2009 and established a long-term plan

(Appendix C) to address the “worst” energy consuming facilities in the existing physical plant.

The Division’s retro-commissioning goal is to retro-commission 250,000 sq. ft per year over a

ten-year period.


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Equipment Efficiency

SCPS through in-house operational practices, facility repair &

maintenance, new construction and energy performance contracting are continuously

applying energy conservation philosophies to the Division’s physical plant. The Division

strives to do this with the most efficient and affordable energy conservation measures and

operational practices possible to include:

• Replacement of older fluorescent lighting packages with energy efficient T8

lighting packages.

• Installation of occupancy sensors in all facilities

• Installation of Variable Frequency Drives (VFDs) and High Efficiency Motors.

• Programming of HVAC Systems to maximize cost savings and operate only when

needed.

• Installation of used oil furnaces utilizing a nearly free source of heating.

• Evaluation of heating and chilled waterlines and re-insulating as necessary to

maximize energy efficiency.

• Installation of low flow toilets, urinals, and low flow aerators for sinks throughout

the Division.

• Improvements to Building Envelopes including window & window frame

replacement.


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• Vending Misers.

Conservation / Waste Reduction

SCPS continues to focus on energy conservation and energy waste reduction throughout

the school division. Included in our division wide conservation program are the

following:

Conservation

• Develop detailed school division operational guidelines for each school type (elementary, middle and high) that can be used to reduce energy and utility waste.

• Identify additional items of equipment that can be turned off during extended

school closures. (Spring Break, Summer Break, Winter Break and all Holidays)

• Evaluate sustainable and energy efficient technologies for incorporation into new construction and make recommendations for their adoption.

• Evaluate hot water systems for kitchens and facilities to reduce hours of operation.

• Ensure all outside lighting is turned off during daylight hours.

• Ensure all classroom computers, monitors, projectors and TVs shall be turned off at

the end of each day.

• Ensure all computers and monitors equipped with the “Go Green with IT” utilize the sleep feature when not in use.


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• Ensure all copiers, computers and monitors are turned off when the office staff leaves for the day. Some large copiers have specific instructions not to be turned off allowing them to transition into a sleep mode.

• Establish procedures that allow laminating equipment to only be used during

specific periods of the day.

• Ensure all lighting and HVAC in auditoriums are kept at a minimum except during activities.

• Ensure all areas without staff or students have the lights turned off.

• Ensure all Direct Digital Controls (DDC) building control systems will be

programmed for light ventilation applications.

• Continue installing Vending Misers on all Vending Machines

• Ensure all supply and return air outlets be unrestricted and kept uncovered.

• In areas where the building HVAC is operating, all exterior doors and windows shall remain closed.

• If possible, evacuation drills should be planned on days with mild in temperature as

to not overload the HVAC system after the drill. This has the potential to set new Peak Demand charges on the electric bill.

Waste Reduction

• All field and stadium lighting should only be used for official school functions such

as games or practice sessions. However, the lights are NOT to be turned on before dusk.

• Maintain strict monitoring of energy usage for Heating, Ventilation, and Air

Conditioning in all buildings and facilities.

• Continue water usage reduction efforts throughout SCPS.

• Continued management of the recycling efforts throughout the School System.


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Other Departments:

School Nutrition

• Equipment replacements require Energy Star Rating

• Equipment Start-up is sequenced in order to prevent peak load being exceeded

• Freezer Compressors were relocated outside to reduce heat loads in kitchen areas

• Major contributor to the recycling program.

• Changed from Styrofoam trays and plastic silverware to hard trays and silverware

that can be clean in an effort to reduce refuse.

Pupil Transportation

• Diesel School Bus Retrofit that will decrease the amount of air pollution emitted

from 87 school buses.

• Idling Operations.


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Education

The SCPS Energy Conservation Program, as with many other operational programs within the

school division, has a commitment to establish a link or connection with the student population.

These opportunities are not only valuable but also a rare opportunity to enhance the educational

product provided to our students. Working through the School Division’s Instructional

Department to enhance lesson plans and develop partnerships with energy conservation

organizations and projects will be our focus.

Establish a relationship with The NEED Project and alliance with SAVE ENERGY to supply

needed energy related instructional material for programs that are consistent with the School

Divisions educational goals and the Standards of Learning (SOL).

The Energy Steering Committee will have representatives from each school. These school

representatives will help establish Energy Smart Teams at each school/site. These teams will be

asked to assist school staff in helping their school become more energy efficient. Some of the

tasks the Energy Smart Team will assist with are:

• Establish an Energy Smart Team with student involvement for your campus.


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• Smart Team will help to ensure room temperatures are consistent with the Stafford

County School Board adopted Energy Management Program.

• Smart Team will assist in ensuring blinds or drapes on windows that receive direct

sunlight are closed when air conditioning systems are on, at night and during the winter.

• Smart Team will assist school staff in the scheduling of facility space wisely to reduce

energy consumption. Use the fewest number of rooms necessary for summer and night

programs. Schedule teachers into one room for preparation periods, and place support

staff in fewer rooms, if possible.

• Smart Team will assist in the implementation of a lighting procedure to keep lights off

when a space is not used.

• Smart Team will solicit feedback from students and staff on energy conservation.

• Smart Team will assist school staff and the Energy Manager with informing the public,

parents, and other groups about their school’s energy conservation efforts.

• Smart Team will assist staff with ensuring the classroom air supply and return grills are

not blocked with furniture or displays.

• Smart Team will help educate students and staff with keeping classroom doors and

windows shut when heat or air conditioning is on.

• Smart Team will help educate students and staff to close all windows and doors when

leaving the classroom at the end of the day and turn off all equipment and lights.

• Smart Team will help educate students and staff to not cover or block thermostats.

• Smart Team will help report faulty thermostats and other equipment that may be

malfunctioning.


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• Smart Team will help promote wearing warmer clothes in cold weather and cooler

clothes in hot weather consistent with the school division dress codes.

• Smart Team will get more students and staff involved in monitoring energy usage.

• Smart Team will assist staff to educate all in turning off lights, televisions, and

computers/monitors when leaving room.


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Capital Improvements

SCPS, throughout its history, has consistently and continuously emphasized and included

energy efficiency and conservation measures in all facets of its Capital Improvement

Program. In 2006, the Division took a significant move towards formally establishing an

energy conservation position with the School Board’s approval of an Energy

Conservation Resolution (Appendix E). This resolution advocates for the basic energy

conservation tenants as shared by the U.S. Green Building Council, Sustainable Building

Industry, and U.S Environmental Protection Agency. In 2009, the Division established a

set of Facility Design Standards, which establish minimum energy guidelines for all

Capital Improvement Projects including Energy Star ratings and U.S. Green Building

Council Leadership in Energy and Environmental Design. The Facility Design Standards

can be found on the Facilities Services section of the Stafford County Public Schools web

site www.staffordschools.net

http://www.staffordschools.net/�


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Glossary of Terms

Capital Improvements – Addition or structure that enhances the value of a property, or

a replacement or upgrade that extends the useful life of an asset.

Capital Maintenance - Accounting concept that a profit can be realized only after

capital of the firm has either been restored to its original level (called 'capital recovery')

or is maintained at a predetermined level. It is necessary, therefore, to determine the

value of capital before the amount of profit can be computed.

Columbia Gas – Natural Gas Provider in Stafford County.

Commissioning (Cx) – A process of working with new and complex building systems

and equipment to ensure the systems/equipment are operating properly and in

coordination with each other.

Dominion Virginia Power (DVP) – Electric provider to majority of Stafford County.

Energy Conservation Measure (ECM) – ECM are specific energy conservation

measure implemented to conserve energy to include lighting, occupancy sensors, low

flush water closest and urinals.

Energy Performance Contract – A Contract with an Energy Performance Contractor to

install products that save energy and is paid for by the energy savings.

Energy Star - Energy Star is a United States government program created in 1992 by the

US Environmental Protection Agency in an attempt to reduce energy consumption and

greenhouse gas emission by power plants. What began originally as a voluntary labeling

program has grown in to one of the largest efforts worldwide to promote energy efficient

consumer products.

Energy Steering Committee - School Division Group charged with recommending

Energy Policies for the School Division.

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Heating, Ventilation & Air Conditioning (HVAC) – Large mechanical building

systems that introduce fresh air into facilities andat variable rates and heats, cools,

dehumidifies and/or humidifies the same air to provide comfort to the occupants.

High Performance Buildings – A building that integrates and optimizes all major high

performance attributes including energy efficiency, durability, life cycle performance and

occupant performance and productivity.

Holiday Schedule – A period of time that includes all standard and schedule holiday

periods (Thanksgiving, Winter Break, and Spring Break) where un-occupied automatic

temperature control schedule is in place.

Leadership in Energy and Environmental Design (LEED) - Green Building Rating

System, developed by the U.S. Green Building Council (USGBC), provides a suite of

standards for environmentally sustainable construction. Since its inception in 1998,

LEED has grown to encompass over 14,000 projects in 50 US States and 30 countries

covering 1.062 billion square feet (99 km²) of development area. The hallmark of LEED

is that it is an open and transparent process where the technical criteria proposed by the

LEED committees are publicly reviewed for approval by the more than 10,000

membership organizations that currently constitute the USGBC.

Northern Virginia Electric Cooperative (NOVEC) – Electric provider to the

Northwestern portion of Stafford County.

Occupancy Sensors – A device that is added to lighting circuits to turn off the lights inif

no one is in the room.

Occupied Mode – Automatic temperature control mode of operation for full occupancy.

Retro-Commissioning (RCx) – A process of working with old equipment to bring it

back to the original specification and operational condition.

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SCPS Capital Improvement Plan (CIP) – Six-year plan approved annually by the

School Division that outlines proposed new construction, additions/renovations, new

support facilities and the Capital Maintenance (infrastructure) requirements.

Set Points – The target value of a controlled variable in an automatic temperature

building control system.

Special Events – School events that require a change in the automatic temperature

control time schedule that overrides most other specific times.

Stafford County Public Schools (SCPS) – School Division

Summer School – A specific period during July/August when certain schools are open to

assist students with remediation and/or other course work. Typically, one high school is

used for High School summer school and all Middle and Elementary Schools.

Unoccupied Mode - Automatic temperature control mode of operation for limited

occupancy.

Variable Frequency Drives (VFDs) – A device that controls electric motor speed to

regulate system airflow.

Vending Miser – A device that is added to vending machines that cycle the machine

when no occupants are around.

Water Conservation – A program to conserve water consumption throughout the school

division to include replacement of equipment.


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