Via Christi Regional Medical Center Wichita, KS. Electricity Reduction. Lindy Pope September 14, 2007. Presentation Overview. Via Christi Overview Energy Consumption Audit Light Audit Delamping and Timers New Lamp Purchases Occupancy Sensors Dimming Controls Air Audit
September 14, 2007
Via Christi Overview
Energy Consumption Audit
Delamping and Timers
New Lamp Purchases
Energy Star Products
Monitor Power Management
Energy Awareness Program
Via Christi Regional Medical Center is a non-profit Catholic health organization based in Wichita, Kansas.
I worked at their St. Francis campus.
St. Francis is a 1,450,000 square feet Level-1 Trauma Center.
12 months of energy data was collected for St. Francis, St. Joseph, Our Lady of Lourdes, Good Shepherd, and 30 other locations owned by Via Christi.
The 4 main buildings were placed into Energy Star’s Portfolio Manager to get a benchmark reading.
St. Francis’ meters were broken down into: the location they served, what events happen in those locations, and $ per square foot.
All this information was collected to allow the hospital to focus their energy conservation on the locations where they use the most energy.
An example of the final spreadsheet can be seen below.
Overall higher lighting levels than needed.
¼ Delamping- 25 locations
In locations that are over lit constantly and/or low traffic hallways
Turn off certain lights during the day- 21 locations
Achieve through timers or connecting the lighting to a Building Automation System
21 timers are needed: a purchase price of $630
$5,793.27 and 125,068 kWh savings in electricity per year
Removal of 336 lamps
A list of the current lamp purchases for St. Francis and St. Joseph was reviewed to determine if there are better options.
11 lamp types were identified that should be changed.
The new lamps reduce electricity, lamp disposal, mercury, and/or maintenance costs
T-8: 38,350 to 45,950 T- 8’s in the 4 main buildings
$81,920 to $97,302 in electricity per year
1,638,387 to 1,946,005 kWh per year
69,030 to 82,710 mg of mercury
LocationAverage Savings Amount Annual Savings (per room)
Private Offices 35% 600 $7.59 - $12.56
Classrooms 40% 35 $18.40 - $49.06
Conference Rooms 47% 62 $10.29 - $20.58
Restrooms 54% 121 $35.50 - $59.13
Storage Areas 60% 264 $7.88 - $15.77
Lounge/Kitchen 35% 90 $13.80 - $27.60
Waiting Room 30% 50 $26.28 - $52.56
Exam Room 50% 121 $6.57 - $13.14
$15,497 to $28,591 in electricity per year
310,119 to 571,747 kWh per year
Dimming controls offer occupants more control over their environment.
They can be used in patient rooms, offices, and exam rooms.
Occupancy sensors save more in offices then dimmers do.
Dimming controls, in exam rooms, have no research on potential savings.
Implement dimmers during renovations or new construction.
There are 730 patient rooms.
The chart below shows the estimated savings per year if dimmers were placed in patient rooms.
Equipment used: UE Systems 9000 Ultrasonic Leak Detector
20 leaks for a total loss of 74.8 CFM
Total loss of $7,862.98 and 157,260 kWh per year
11 leaks for a total loss of 22.9 CFM
Total loss of $3,009.06 60,181 kWh per year
5 leaks for a total loss of 35.12 lb/hr
Total loss of $3,999 and 331 Mbtu per year
Total: $14,871, 217,441 kWh, and 331 Mbtu per year
Product Savings (1 unit per year) Total Savings (per Year)
CRT/LCD Monitor $8 $10,500
TV $3 $2,190
Vending Machine $140 $10,500
Computer $6 $3,600
LED Exit Signs $12 $6,000
Copiers, printers, refrigerators, DVD’s, fax, and food service equipment
$27,090 per year
500,000 kWh per year
This free software from Energy Star puts all monitors on the network into sleep mode after a pre-determined time.
Estimated savings per monitor: $10-$20
Total Savings (based on 1,500 monitors):
$15,000 to $30,000 per year
300,000 to 600,000 kWh per year
Cisco Systems Success Story:
Total savings of $528,000 or $26 per monitor per year
Only 16 hours of IT time to implement
Makes sure employees are an active part of energy savings.
Will remind people of energy conservation acts and benefits.
Constant reminder to turn off
the lights and office equipment at night.
Total Estimated Savings (from
$30,000-$76,000 per year
600,000-1,520,000 kWh per year
Total Savings in Energy per Year:
$197,347 to $291,298
3,825,306 to 5,704,078 kWh