CAMPUS WIDE UTILITIES –September 2003

Richard ByersDirector of Physical Plant

And

Forrest SelmerUniversity Engineer

Physical Plant

September 12, 2003

GRAPH A

UNIVERSITY COAL CONSUMPTION MMBTU

-

100,000

200,000

300,000

400,000

500,000

600,000

FY93

FY94

FY95

FY96

FY97

FY98

FY99

FY00

FY01

FY02

FY03

FY04est

GRAPH B

UNIVERSITY COAL COSTS

$-

$100,000

$200,000

$300,000

$400,000

$500,000

$600,000

$700,000

$800,000

FY 93

FY 95

FY 97

FY 99

FY 01

FY 03

TOTALUW COALCOST

PHY PLTCOALCOST

RLDS +COALCOST

GRAPH C

ELECTRICAL USAGE

-10,000,00020,000,00030,000,00040,000,00050,000,00060,000,00070,000,000

FY 1993

FY 1994

FY 1995

FY 1996

FY 1997

FY 1998

FY 1999

FY 2000

FY 2001

FY 2002

FY 2003 E

ST

FY 2004 E

ST

KW

H

TOTAL KWH KWH - PHY PLT RLDS + KWH

GRAPH D

UNIVERSITY ELECTRICAL COST TOTAL (Physical Plant, RLDS+)

$-

$500,000

$1,000,000

$1,500,000

$2,000,000

$2,500,000

$3,000,000

FY1993

FY1995

FY1997

FY1999

FY2001

FY2003EST

TOTAL UW ELEC COST PHY PLT COST RLDS + COST

GRAPH E

WATER CONSUMPTION (KGAL) TOTAL (Physical Plant, RLDS)

050,000

100,000150,000

200,000250,000300,000350,000400,000

FY 1993FY 1994FY 1995FY 1996FY 1997FY 1998FY 1999FY 2000FY 2001FY 2002FY 2003

FY 2004 estK

GA

L

KGAL TOTAL-UNIVERSITY KGAL Phy Plt KGAL RLDS

GRAPH F

UNIVERSITY WATER COSTS

$-

$200,000

$400,000

$600,000

$800,000

$1,000,000

$1,200,000

FY 1993

FY 1994

FY 1995

FY 1996

FY 1997

FY 1998

FY 1999

FY 2000

FY 2001

FY 2002

FY 2003

FY 2004 e

st

UNIVERSITY TOTAL TOTALS - Physical Plant TOTALS - RLDS

GRAPH G

GAS CONSUMPTION TOTAL(Physical Plant, RLDS, Auxiliaries, +)

-20,00040,00060,00080,000

100,000120,000140,000160,000180,000200,000

FY 9

3FY

94

FY 9

5FY

96

FY 9

7FY

98

FY 9

9FY

00

FY 0

1FY

02

FY 0

3FY

04

est

MM

BTU

TOTAL MMBTU PHY PLT MMBTU RLDS + MMBTU

GRAPH H

UNIVERSITY GAS COSTS

$-$100,000$200,000$300,000$400,000$500,000$600,000$700,000$800,000$900,000

FY93

FY94

FY95

FY96

FY97

FY98

FY99

FY00

FY01

FY02

FY03

FY04est

TOTAL COST PHY PLT COST RLDS + COST

GRAPH I

TOTAL UTILITY COST

$-

$1,000,000

$2,000,000

$3,000,000

$4,000,000

$5,000,000

$6,000,000

FY1993

FY1994

FY1995

FY1996

FY1997

FY1998

FY1999

FY2000

FY2001

FY2002

FY2003

FY2004est

TOTAL UW COST TOTAL COST PP TOTAL COST RLDS +

FY01

FY 01 UNIVERSITY WIDE UTILITY COST BREAKDOWN

Total = $4,016,366

$512,945 12.8%

$1,964,155 48.9%

$829,809 20.7%

$709,458 17.7%

UW TOTAL WATERCOST

UW TOTAL ELECTRICCOST

UW TOTAL GAS COST

TOTAL COAL COST

FY02

FY 02 UNIVERSITY WIDE UTILITY COST BREAKDOWN

Total = $3,639,763

$640,886 17.6%

$1,746,044 48.0%

$586,083 16.1%

$666,750 18.3%

UW TOTAL WATERCOST

UW TOTAL ELECTRICCOST

UW TOTAL GAS COST

TOTAL COAL COST

FY03

ESTIMATED FY 03 UNIVERSITY WIDE UTILITY COST BREAKDOWN

Total = $4,423,537

$831,520 18.8%

$2,356,629 53.3%

$664,397 15.0%

$570,990 12.9%

UW TOTAL WATERCOST

UW TOTAL ELECTRICCOST

UW TOTAL GAS COST

TOTAL COAL COST

FY04

ESTIMATED FY 04 UNIVERSITY WIDE UTILITY COST BREAKDOWN

Total = $4,883,497

$1,051,873 21.5%

$2,520,000 51.6%

$739,674 15.1%

$571,950 11.7%

UW TOTAL WATERCOST

UW TOTAL ELECTRICCOST

UW TOTAL GAS COST

TOTAL COAL COST

PP FYO1

FY 01 PHYSICAL PLANT UTILITY COST BREAKDOWN

Total = $2,870,850

$314,592 11.0%

$1,649,894 57.5%

$428,689 14.9%

$477,674 16.6%

WATER COST Phy Plt

ELECTRIC COST PhyPlt

GAS COST Phy Plt

COAL COST Phy Plt

PP FYO2

FY 02 PHYSICAL PLANT UTILITY COST BREAKDOWN

Total = $2,558,484

$435,687 17.0%

$1,429,497 55.9%

$304,378 11.9%

$388,922 15.2% WATER COST Phy Plt

ELECTRIC COST PhyPlt

GAS COST Phy Plt

COAL COST Phy Plt

PP FYO3

ESTIMATED FY 03 PHYSICAL PLANT UTILITY COST BREAKDOWN

Total = $3,268,639

$616,003 18.8%

$2,018,477 61.8%

$359,522 11.0%

$274,637 8.4%

WATER COST Phy Plt

ELECTRIC COST PhyPlt

GAS COST Phy Plt

COAL COST Phy Plt

PP FYO4

ESTIMATED FY 04 PHYSICAL PLANT UTILITY COST BREAKDOWN

Total = $3,606,034

$779,244 21.6%

$2,170,000 60.2%

$383,634 10.6%

$273,156 7.6% WATER COST Phy Plt

ELECTRIC COST PhyPlt

GAS COST Phy Plt

COAL COST Phy Plt

RLDS+ FY01

FY 01 RLDS + Auxiliary UTILITY COST BREAKDOWN

Total = $1,145,517

$198,353 17.3%

$314,260 27.4% $401,120

35.0%

$231,784 20.2%

WATER COST RLDS

ELECTRIC COST RLDS+

GAS COST RLDS

COAL COST RLDS +

RLDS+ FY02

FY 02 RLDS + Auxiliary UTILITY COST BREAKDOWN

Total = $1,081,279

$205,199 19.0%

$316,547 29.3% $281,705

26.1%

$277,828 25.7%

WATER COST RLDS

ELECTRIC COST RLDS+

GAS COST RLDS

COAL COST RLDS +

RLDS+ FY03

ESTIMATED FY 03 RLDS + Auxiliary UTILITY COST BREAKDOWN

Total = $1,154,898

$215,517 18.7%

$338,152 29.3% $304,875

26.4%

$296,354 25.7%

WATER COST RLDS

ELECTRIC COST RLDS+

GAS COST RLDS

COAL COST RLDS +

RLDS+ FY04

ESTIMATED FY 04 RLDS + Auxiliary UTILITY COST BREAKDOWN

Total = $1,277,463

$272,629 21.3%

$350,000 27.4% $356,040

27.9%

$298,794 23.4%

WATER COST RLDS

ELECTRIC COST RLDS+

GAS COST RLDS

COAL COST RLDS +

UTILITY COST REDUCTION MEASURES

The University has been reducing utility consumption and utility costs for several years. Some highlights are (note: K = $1,000, M = $1,000,000):

Steam and Coal:Installation of heat recovery systems at the Science Library and Corbett P.E. resulted in a complete pay back in less than 5 years and there was a significant improvement in the indoor air quality. A De-Alkalizer was installed at the CEP, which reduces make up water,chemical and energy costs. Savings are over $79K/yr.Summer steam generation fuel source was switched from gas to coal, saving over $250K/yr.Windows have been replaced at various buildings and save approximately $15K/yr. The Campus wide digital control network has been continually expanded. This not only saves energy, but also greatly improves the comfort in the facility and increases the Physical Plant’s maintenance effectiveness as these systems tell us when there is a problem. Savings are difficult to measure as individual buildings are not metered for steam usage, but they have helped lower the yearly gas and coal usage. This is the main reason coal consumption has been held relatively constant the past 5 years in spite of increased square footageHeating control valves were installed at the 8 and 12 story residence halls saving steam and drastically increasing comfort of the individual rooms.

UTILITY COST REDUCTION MEASURES (cont.)

Water:Many irrigation systems were automated. This reduces water consumption by 20%-50%; savings are at least $30K/yr.The campus well irrigation system is continuously being expanded. At its completion, it will irrigate the Campus from 9th to 22nd and Grand to Lewis Streets. Currently, over $120K/yr. is being saved in water costs.

Natural Gas:A Department of Energy (DOE) grant was used to install new boilers and better controls at Plant Science, Insect Soils facility (PSIS), saving $15K/year in gas costs. Performance contracts with UW’s primary building control firm have been used at PSIS, State Vet Chem Lab and 951 N. Poplar (in Casper). With this type of contract, the vender provides the engineering, savings calculations and all labor for the work.

UTILITY COST REDUCTION MEASURES (cont.)Electricity:

Several electric motors were replaced with newer, higher efficient units that are better matched to the actual load. Also, where possible, variable frequency drives to control the motors were installed. Savings are over $80K/yr. This is on going. A DOE grant was used to improve lighting at Coe Library, saving $26K/year in electric costs.A DOE grant was used to replace the aging chiller at the IvinsonBuilding, saving $14K/year in electrical costsPower factor correction capacitors were installed at the Animal Science Live Stock Teaching Center, saving over $5K/yr. on electrical costs.An electric irrigation pump at the Beef Unit was replaced with apropane-powered unit, saving $2.5K/yr. in operational costs. Lighting systems were upgraded at Corbett Gym and Pool, Science Library, Class Room Building, A&S, Knight Hall corridors, Physical Plant and other miscellaneous locations. Estimated $50K/yr. savings in electrical costs, plus improved lighting. Project isongoing.

UTILITY COST REDUCTION MEASURES (cont.)

Electricity: (continued)The campus chilled water system was extended to replace ageing building chillers. Facilities included Knight Hall, Coe Library, Law and Fine Arts. Aside from have a main chiller operate at 2-3 times the efficiency of the old individual building units, there are substantial savings in maintenance and the ozone depleting refrigerant problem was taken care of. Rough estimate of savings is over $100K/yr. Currently, over 802,000 square feet in 14 buildings are cooled by the campus chilled water system.The two main chillers at the CEP were replaced and a flat plate heat exchanger was added for free cooling. These new units operate at least twice the efficiency of the old units plus give the loop added capacity. The flat plat allows the chilled water loop to be cooled by using only outside air when conditions are right. Over $15K/yr. is being saved. Electric driven condensate pumps were replaced with steam powered units. This has saved over $25K/yr. and also has helpedreduce water and chemical usage.A pre-purchase agreement with the University’s primary electric provider was negotiated. This saved over $1M during the 6-year life of the agreement.