The document summarizes energy projects at Central Connecticut State University (CCSU). It describes the original powerhouse, the new energy center that provides heating, cooling and electricity, and upgrades including installation of a 1,400 kW fuel cell. The university has undertaken energy efficiency projects through retro-commissioning, LED lighting replacement, and motion sensor controls. CCSU aims to continue efficiency projects and education to reduce energy usage in line with its Climate Action Plan.

1. GREEN CAMPUS CONFERENCE ATGREEN CAMPUS CONFERENCE AT
ECSUECSU
APRIL 19, 2012APRIL 19, 2012
The Latest & Greatest Energy Technology !The Latest & Greatest Energy Technology !
Where we were,Where we were,
Where we are,Where we are,
Where we are headed….Where we are headed….
Presented byPresented by
Rob GagneRob Gagne
CCSU Plant Facilities Engineer IICCSU Plant Facilities Engineer II
gagne@ccsu.edugagne@ccsu.edu

2. CCSU’S ORIGINAL POWERHOUSECCSU’S ORIGINAL POWERHOUSE

6. POWERHOUSE
18,500 PPH
BOILERS

7. • Planning for the Energy Center
commenced in the early 1990s to
respond to problems with the
aging and undersized campus
heating system
• Provides all heating, cooling, hot
water and some electricity for the
campus
• Staffed by CCSU on a 24/7 basis
since the Fall of 2004
• Equipment in the Energy Center
o Three dual fuel Nebraska boilers
o Two 1,250 kW Cummins natural gas
engines
o One 1.5 ton electric centrifugal chiller
o One 1.5 ton steam absorption chiller
o Two heat recovery steam generators
ENERGYENERGY
CENTERCENTER

8. Energy Center Control Room Energy Center Space
ENERGY CENTER EQUIPMENTENERGY CENTER EQUIPMENT

9. 65,000 PPH ENERGY CENTER BOILER

10. 1,500 TON
ELECTRIC
CHILLER

11. 1,500 TON
STEAM
ABSORPTION
CHILLER

12. CUMMINS QSV
18 CYLINDER
1,250 KW
GENERATORS

13. HEAT
RECOVERY
STEAM
GENERATORS
2,000 PPH

14. 300 HP
COOLING
WATER
PUMPS

15. 500 HP
SECONDARY
CHILLED
WATER
PUMPS

16. UTILITY TUNNEL CONSTRUCTIONUTILITY TUNNEL CONSTRUCTION

17. UTILITY TUNNEL CONSTRUCTIONUTILITY TUNNEL CONSTRUCTION

18. UTILITY TUNNEL COMPLETIONUTILITY TUNNEL COMPLETION

19. UTILITY
TUNNEL
INTERIOR

20. ENERGY
CENTER
SWITCHGEAR
ROOM

21. ELECTRICAL PROFILEELECTRICAL PROFILE

22. FUEL CELLFUEL CELL

23. • 1,400 kW Direct Fuel Cell power
plant was installed in the Fall 2011
and delivering power by January 1,
2012
• Minimum electrical capacity 1,303
kW . Minimal steam capacity
1,600 lb/hr with three modes of
operation.
• Grid Connected Mode (with or
without existing E.C. generators)
• Grid Independent Mode (without
the utility grid) MICRO GRID
• Island Hot Standby Mode
(powering its own parasitic loads)
FUEL CELLFUEL CELL

24. FUEL CELLFUEL CELL

25. FUEL CELLFUEL CELL

26. • Phase 1 (completed October 2011): Consisted of energy
efficient improvement measures to Copernicus Hall, and
Vance Academic Center. Implementation cost $164,166.00.
Total energy savings $111,592.00 with a 1.5 year payback.
Additional incentive through CEEF, $3,753.50 when project
was closed out.
• Phase 2 (funding request submitted): Energy efficient
improvement measures to the Energy Center.
Implementation cost $270,671.00. Total energy savings
$192,332.00 with a 1.4 year payback. Additional incentive
through CEEF, $54,026.27 when project is closed out.
RETRO-COMMISSIONINGRETRO-COMMISSIONING

27. • Retrofitting of 500 lamps across the CCSU campus
with energy saving Sylvania DG LED retrofit kits
• Lessen electrical usage without compromising safety
and security
• Bulb life approximately 5 times a traditional lamp
• Annual reduction of 240,900 kWh with an
approximate 41k cost savings
• Reduction of criteria pollutants such as sulfur oxide,
nitrogen and carbon compounds
• Reduction of light pollution in accordance with the
Dark Sky Initiative
LED REPLACEMENT PROJECTLED REPLACEMENT PROJECT

28. • Copernicus Garage lighting: 700 (150watt HPS)fixtures were
replaced with 100 watt MH
• Welte Garage lighting: 216 (150 watt HPS) fixtures were
replaced with 8 foot 4 lamp fluorescents, approximately 112
watts per fixture
• Combined average savings for two garages is approximately
4,000 kWh per month
• Square D Monitoring: provides the ability to monitor each
buildings electrical load
• Infrared motion sensor lighting controls: Installed in various
portions of campus to include hallways, classrooms, etc.
OTHER CAMPUS WIDE ENERGYOTHER CAMPUS WIDE ENERGY
EFFICIENCY PROJECTSEFFICIENCY PROJECTS

29. We will continue to:
– Investigate any and all incentive programs available
– Research additional retro-commissioning and continue with
persistent strategies on existing retro-commissioning
projects
– Educate and involve the campus community in energy
conservation and sustainability efforts
– Stay committed to meeting the goals and efforts in the
University’s Climate Action Plan
WHERE ARE WE HEADED?WHERE ARE WE HEADED?
(IN THE RIGHT DIRECTION!)(IN THE RIGHT DIRECTION!)