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Charlotte Mecklenburg SchoolsAuxiliary Services Division

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•CharlotteRaleigh

Charlotte Mecklenburg Schools

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• Located in Charlotte, NC• ±140,000 Pre-K – 12• More than 19,000 teachers• ±181 Schools• 649 plus buildings• 1,241 mobile units• 21,177,855 sf of space• 4,892 Acres

CMS Business Profile

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• 2009 – 2010 School year– Used 206 Million KWH of electricity– Used 3.99 Million Therms of Nat Gas– Over 1,450 utility accounts

• 2009 – 2010 Utility Budget excess of 26 million dollars

• The district spends almost $3,000 per hour on utilities (24/7/365).

• 3.0 dedicated energy management staff

Energy Stats

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Building Services MissionTo provide excellent educational facilities for

all stakeholders that are safe, clean, well maintained and environmentally secure

CMS Energy Management Purpose is “to minimize CMS energy consumption, greenhouse gas emissions and utility expenditures through

implementation of energy conservations measures throughout the district”

Mission and Purpose

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Strategic Plan 2014

Energy Management is the cornerstone to our Environmental

Management System (EMS)

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Key Strategies and Tactics Each focus area in Strategic Plan 2014: Teaching Our Way to the Top is supported by key strategies and tactics.

Below are listed the key strategy and supporting tactics for Focus Area Five: Environmental Stewardship.

Key Strategy 5.1.1: Engage all stakeholders in conservation of resources.

Tactics:5.1.1.1 Engage students and staff in environmental stewardship.5.1.1.2 Implement a district-wide Environmental Management System that follows the

structure of ISO-14001 standards and passes a North Carolina equivalency audit.5.1.1.3 Earn the following state-awarded designations: Rising Steward by 2011;

Environmental Steward by 2014.5.1.1.4 Reduce electricity usage per square foot.5.1.1.5 Reduce natural gas usage per square foot.5.1.1.6 Reduce water usage per student.5.1.1.7 Identify, pursue and secure supplemental alternative funding strategies for

improving environmental performance measures.5.1.1.8 Reduce total waste stream.5.1.1.9 Reduce fuel consumption per mile for CMS fleet and equipment.5.1.1.10 Reduce vehicle and equipment emissions.5.1.1.11 Implement a sustainable-development program that uses high-performance

standards for buildings.5.1.1.12 Implement an environmentally sustainable purchasing program.

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• Reduced our KBTU/Sq. ft by 9.7% over the last 2 years (59.96 – 54.12).– This resulted in CMS being under our utility

budget by over 2 million dollars for the last 2 school years

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So how did we do it???

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• Do you have executive buy-in (either the superintendent and/or the Board)?

I recommend following the energy star model as the federal government has put a lot of resources into the program that you can tap.

Also the name recognition factor (free advertising) goes a long way. Most people know about the appliance side of energy star it is not a big leap to get them to the building side.

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• Energy Star Partner• As of August 12th we have 30 schools

labeled totaling in excess of 3 million sq-ft.• Received recognition as a Leader for 10 %

Energy Reduction

Energy Star Stats

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• CMS uses a software called utility manager pro to input all our utility information. 3 of our biggest providers provide electronic files of this information (no manual keying).

• CMS then uploads this information to Energy Star’s portfolio manager to obtain our rating.

You cannot measure what you do not Track

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• Every month we look at several reports (print via PDF)– Usage report – year to date & Monthly

• Look for variances and inspect high users• Budget reports

– Track actual costs versus estimates• Perform Measurement and Verification

activities on maintenance projects– Why do this ??? You want to inform your staff

that the work they are doing is making a difference (saving jobs, costs, etc…). Positive re-enforcement!

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• Since the Energy Management group is small CMS and budgets are tight uses other staff to aid in the efforts, these include:– Property Managers– Engineers– Maintenance staff– Custodial Staff– Energy Coordinators - Site base school staff – Students / Visitors also play a major role

Staff

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• Each school has a designated coordinator• They are responsible for receiving data

and disseminating it to staff – monthly e-mail with links to data

• A lot of the reports we send compare school versus schools in the district. As you know most principals/schools are very competitive and if they are at the bottom – you can fill in the blank.

Energy Coordinators

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• Property Managers serves as advocates for the Principals’ perform facility inspections and condition assessment, respond to emergencies, and help prioritize maintenance backlogs

• Energy Management instructs the property managers on what the data in the report means and answers any questions at the school house level.

• They also aid the Energy Management group in small projects that occur from time to time

Property Managers

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• Things to do:– Ensure Schedules are working properly– Look at systems during non instruction time –

nights and weekends – we found a lot of waste here – Systems running 24/7 that should not have been

– Lights schedules – ensure they are not the same as HVAC schedules

– Keep your sequences simple, complicated sequences tend to get over-rode by maintenance staff

Energy Management Systems

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Real time metering

At many of our schools CMS has pulse meters and we are able to track real time consumption via our EMS systems.

The graph to the left is of the Summer 2009 - KWH use per day at our Military Magnet school.

We were in 4 day work week mode and had our Summer Energy Management plan in place.

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Energy Management SystemsSimple Strategies (low costs/no cost)

• CMS has implemented simple energy strategies to eliminate re-heat when the outside air temperature is above 80 degrees

• Schedule Optimization• After hours checking• Due diligence and follow-up with

maintenance staff, teachers, community use, etc…

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• All new schools have dual switching with in board / outboard control of lights (since about 2001).

• The last several years we have been installing a 3rd switch, row by the windows (day lighting).

• We have been installing photo eyes on atrium lights

• Converting T12 to T8 (bulbs and ballasts)

• Gyms we have started removing Metal Halide and going back with T5 fixtures or T8.

• Using rebates and grants to offset energy payback on the last 3 items.

Lights

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• CMS is working with our curriculum department to integrate energy management and environmental stewardship into many programs– Program for 3rd and 4th graders with Duke

Energy and Scholastic – Get energy smart– High Schools – many green clubs (as well as

AP classes) and we have even funded several projects they proposed.

– School incentive program

Students

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• Poster Campaigns• Signage• Get the students involved (lights

account for 30-40 % of your electricity costs)

• Documents your successes and pass the word.

Behavioral Change

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• Solar Hot water Projects in design• Test pilot project going on with

demand side management (very low demand charges less than $4.00).

• Goal to get our Energy Star portfolio to a 75 average – its currently at 65.

Future for CMS

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