Meeting the 10% Conservation Goal

Jennifer L. Gorter, PE, CEMFairfax County GovernmentFacilities Management Department (FMD)

April 11, 2008

FMD’s Energy Responsibilities

• FMD is responsible for managing:– Annual utility costs of approximately $9 million– 170+ facilities totaling approximately 8 million SF

Note: This does not include facilities operated by

Parks, Schools, Housing or Public Works

FMD’s Energy Goal is to reduce energy consumption and energy costs

Reduce Energy Consumption

• Install Energy Management Control Systems (EMCS)– County Engineering Design Guidelines now indicate

that installation is standard in all new buildings– Retrofitting existing buildings during Capital Renewal

Projects

Installation of EMCS will save 25-50%

of utility consumption

(depending on type of facility)

Reduce Energy Consumption (cont’d)

• Evaluate existing buildings– Over 700 utility bills are entered into

EnergyCAP database each month by FMD’s accounting section

– Use EnergyCAP database to identify high energy using facilities

– Track reductions in energy as projects are completed

Facilities ranked by use

• Library• Fire and Rescue

Place SF kBtu/ SF $/ SF

FSC18 : JEFFERSON CO #18 18,700 70.01 $1.38FSC16 : CLIFTON CO #16 8,200 72.17 $2.16FSC11 : PENN DAW CO #11 15,806 95.80 $1.74FSC28 : SEVEN CORNERS CO #28 8,575 104.99 $2.02FSC20 : GUNSTON CO #20 7,782 111.14 $2.55FSC29 : TYSONS CORNER CO #29 9,800 116.38 $2.20FSC04 : HERNDON CO #04 8,162 124.80 $2.42FSC40 : Fairfax Center Station 24,195 126.19 $2.24 LEEDFSC15 : CHANTILLY CO #15 10,742 131.33 $2.28FSC31 : FOX MILL CO #31 8,902 139.57 $2.73FSC38 : WEST CENTREVILLE CO #38 12,014 143.13 $2.81FSC34 : OAKTON CO #34 9,910 145.50 $2.62FSC32 : FAIRVIEW CO #32 7,082 146.53 $3.12FSC09 : MT VERNON CO #09 9,000 149.80 $2.86FSC36 : FRYING PAN C0 #36 9,876 154.72 $3.35FSC39 : NORTH POINT CO #39 13,858 162.07 $2.82 Non-LEEDFSC35 : POHICK CO #35 9,545 167.85 $2.83FSC01 : McLEAN CO #01 16,706 169.22 $2.75FSC25 : RESTON CO #25 7,740 172.60 $3.09FSC37 : KINGSTOWNE CO #37 13,127 181.64 $3.30FSC24 : WOODLAWN CO #24 6,800 183.82 $3.46FSC26 : EDSALL ROAD CO #26 8,974 208.72 $3.80

245,496 137.04 $2.57

Place SF kBtu/ SF $/ SF

LIB10 : KINGSTOWNE 15,000 54.04 $1.54LIB05 : GEORGE MASON REGIONAL 27,745 66.76 $1.86LIB21 : GREAT FALLS LIBRARY 12,983 67.92 $1.40LIB20 : WOODROW WILSON 13,500 68.10 $1.55LIB04 : FAIRFAX REGIONAL 37,800 76.34 $1.40LIB14 : POHICK REGIONAL 25,000 79.00 $1.55LIB12 : MARTHA WASHINGTON 11,695 86.54 $1.66 ALIB11 : LORTON 9,923 90.91 $1.77LIB13 : PATRICK HENERY 13,092 92.45 $2.08LIB17 : SHERWOOD REGIONAL 37,680 92.76 $1.71 BLIB03 : DOLLY MADISON 10,632 102.05 $1.83 ALIB19 : TYSONS PIMMIT REGIONAL 25,000 104.25 $2.06LIB15 : RESTON REGIONAL 29,899 105.47 $1.88 BLIB01 : CENTREVILLE REGIONAL 30,000 114.76 $2.59 BLIB02 : CHANTILLY REGIONAL 52,000 115.31 $2.03 BLIB18 : THOMAS JEFFERSON 10,250 118.23 $2.20 ALIB08 : JOHN MARSHALL 13,594 120.54 $2.22 BLIB07 : HERNDON FORTNIGHTLY 17,400 123.73 $2.21LIB09 : KINGS PARK REGIONAL 17,272 154.33 $2.88LIB16 : RICHARD BYRD 9,375 180.13 $3.13 A

419,840 99.05 $1.94

Reduce Energy Costs

• Meter Totalization

• Utility purchasing – Natural Gas Reverse Auction

• Utility bill audits

• Periodic rate schedule evaluation

How to achieve FMD’s Energy Goals?

• Set goal for reducing kBtu/SF

• Established energy guidelines

• Capital Renewal Projects

• Completed Energy Projects

• Review new building designs

• Install Energy Management Control Systems

Completed Energy Projects

• Public Safety Complex Meter Totalization

• Lighting retrofit in facilities– T-12 lamps consume 40W each– T-8 lamps consume 32W (some 28W) each– Reduced from 4 lamps to 3 per fixture for

additional wattage reduction, but overall light output remains the same

• Lighting and Variable Frequency Drive retrofit at the Government Center

Government Center Energy Project Results

• $82,914 Annual Savings

calendar year energy cost kBtu kBtu/SF $/SF $/kBtu2005 $905,434.90 60,373,206 89.45 $1.34 $0.015002006 $878,708.20 55,167,626 81.74 $1.30 $0.01593

Energy project use reduction 8.62%Energy project cost reduction 2.95%

Review New Building Designs from DPWES

• Review drawings and specifications

• Review Life Cycle Cost analysis

• LEED design requirement

• Commissioning

ResultsTotal energy consumption

500,000,000

505,000,000

510,000,000

515,000,000

520,000,000

525,000,000

530,000,000

535,000,000

540,000,000

2001

2002

2003

2004

2005

2006

2007

kBtu

ResultsConsumption/SF

105

110

115

120

125

130

2001

2002

2003

2004

2005

2006

2007

kBtu/SF

Results• Expenditures continue increasing even

though consumption is decreasing

500,000,000505,000,000

510,000,000515,000,000520,000,000

525,000,000530,000,000

535,000,000540,000,000

2001

2002

2003

2004

2005

2006

2007

$0

$2,000,000

$4,000,000

$6,000,000

$8,000,000

$10,000,000

kBtu $

Results

• FMD’s Goal is 10% kBtu/SF reduction over 10 years (average 1%/ year)

• Between FY01-FY07, total kBtu/SF was reduced by 11.1%, which is 1.85% average reduction per year.

Results

Consumption and cost savings per year

460,000,000

480,000,000

500,000,000

520,000,000

540,000,000

560,000,000

580,000,000

600,000,000

base

actual

Total savings since 2001 exceeds $4 million

What’s next?

• Continue existing efforts• Other possibilities available

– Add new EMCS to buildings without them• Currently only have 63 facilities with EMCS in over 170

facilities• Lighting software

– Evaluate renewable energy technologies– Demand side management– Work with code officials and engineers– Energy Audits– Commissioning and Re-commissioning

Conclusion

• Energy savings projects already implemented

• New energy savings = higher initial investment

• Additional 1% reduction/SF/year will be harder

to achieve without significant investment.

• Saving energy saves Fairfax County money!

http://www.fairfaxcounty.gov/living/environment/coolcounties/

Contact Information

Jennifer L. Gorter, PE, CEMFairfax County GovernmentFacilities Management Department

Projects, Engineering, & Energy

12000 Government Center Parkway

Suite 424

Fairfax, VA 22035

703-324-2808

jennifer.gorter@fairfaxcounty.gov