LWC contracted with Siemens to implement almost $2 million in campus-wide energy efficiency improvements including lighting upgrades, HVAC controls, and water conservation measures. These improvements are expected to generate up to $228,000 in annual energy and maintenance savings. A breakdown shows the largest savings coming from HVAC controls at $67,500 followed by efficient lighting at $39,000 and low-flow fixtures from $16,000 to $13,800.

1. Energy Savings Performance Overview
 LWC contracted with Siemens for a
campuswide energy-efficient facility
improvements.
 Almost $2 million of improvements
installed, which will generate up
to$228,000 of energy and
maintenance savings annually.

2. A Look at the Savings
 Energy-Efficient Lighting: $39,000
 Occupancy Sensors: $5,800
 HVAC Controls: $67,500
 Variable Frequency Drives: $8,400
 Low-Flow Flush Valves: $16,000
 Low-Flow Shower Heads: $13,800
 Low-Flow Faucet Aerators: $9,000
 Power Management Software: $6,000
 Other: $61,000

3. Energy Efficient Lighting
Installed:
 8,304 fluorescent lamps for interior lighting
 3,047 electronic ballasts
 Reduces lighting energy consumption by 15%
 Annual energy savings: $39,000

4. Occupancy Sensors for Lighting
 Installed 170 occupancy sensors
 Reduces lighting energy consumption by 20-40%
 Annual energy savings: $5,800

5. Building Controls for HVAC
 Installed networkable building control systems
for Heating, Ventilating, and Air-Conditioning
(HVAC) equipment in eight buildings
 Installed programmable thermostats in 14
additional buildings
 Will allow for the implementation of various
energy management strategies
 Control of fume hoods in laboratory spaces
Annual energy savings: $67,500

6. Variable Frequency Drives
 Installed 17 variable frequency drives across
campus. Locations include Lilly and
Richardson Halls; Fugitte Science Center;
Holloway Health & Wellness Center; Turner
Leadership Center; Slider Humanities Center
 Variable frequency drives optimally control
pump motors and fan motors at their most
efficient operating point
 Typical applications are hot water and chilled
water pumps for heating and cooling and
supply and exhaust fans for ventilation
Annual energy savings: $8,400

7. Low-Flow Flush Valves
 Modified 295 toilet flush valves and 70 urinal
flush valves to optimize the flush sequence
and eliminate unnecessary water
consumption.
 Reduces water consumption in toilets by an
average of 30%
 Annual energy savings: $16,000

8. Low-Flow Shower Heads
 Replaced 291 shower heads with low-flow
showerheads
 Reduces hot and cold water consumption
for showering by an average of 30%
 Annual energy savings: $13,800

9. Low-Flow Faucet Aerators
 Replaced 573 faucet aerators with low-flow,
pressure independent aerators
 Reduces water consumption at sinks by an
average of 50%
 Annual energy savings: $9,000

10. Power Management Software for Campus Computers
 Installed on 780 campus computers
 Provides IT energy management of networked
computers
 Reduces electric consumption
 Annual energy savings: $6,000

11. Other
 Installed energy-efficient windows in
V.P. Henry Auditorium and Everett Building
 Negotiated a more favorable rate structure for
several buildings and athletic field lighting
 Moved Cranmer Dining & Conference Center
water heating from electric to less costly gas
 Installed attic insulation in the L.R. McDonald
Building, Goodhue Academic Center and
Everett Building
 Annual energy savings: $61,000
 Work will qualify for more than $20,000 in
rebates from the Kentucky Utilities Co.