WSU Energy Program

                      Energy Management Overview

• Wright State University is a two campus system totaling 2,966,303 gross square feet with buildings located in Greene, Montgomery and Mercer counties.

• A total of  423032 MMBTU of energy (natural gas, electric and oil) is used to heat, cool, ventilate, and power the facilities on the two campuses and off-campus facilities.

• As required by HB 251, the University’s goal is to reduce the energy usage on a square foot basis from  0.14261 mmBTU/square foot down to 0.11409 mmBTU/square foot by the year 2014.

• In 2008 Wright State will develop a strategic energy plan designed to meet this goal.

 Energy Procurement and Metering

 Electricity

• The main campus receives electricity at 69KV which is then distributed to buildings at 12.5KV. Main campus billed usages include the Nutter Center.

• A project is underway to install a campus wide building electricity sub-metering system. Currently we have a limited amount of historical interval data. All core campus buildings should be online by the end of February 2008. The data will be shared on this site as it becomes available.

• Facilities on the main campus and in Montgomery county are served by Dayton Power & Light, a regulated provider of electricity.

• The Lake Campus is served by Celina Municipal which is a cooperative.

Natural Gas

• Wright State purchases natural gas in the open market (NYMEX).

• Vectren is the local distributor for all Dayton area facilities and Dominion East for Lake Campus.

• The Nutter Center and Main Campus are metered and billed separately by Vectren.

     Lighting and Mechanical Systems Overview

 Lighting

• Wright State University was one of the first campuses to retrofit essentially all T12 fluorescent lighting with more efficient T8 lamps and electronic ballasts.

• Occupancy Sensors are currently being utilized in several classrooms and all restrooms for on demand lighting control.

• Most larger common area lighting is scheduled via the building automation system.

Building Automation

• Johnson Controls Metasys, Seimens Apogee  are utilized for the main campus.

•  Honeywell (Lake Campus).

                            HVAC Overview

Air Handlers

• The main campus and outlying facilities contain 88 major air handlers. Forty three are equipped with variable frequency drives and are typically a reheat system. Approximately 15 are makeup or 100 % outside air, otherwise all have economizer control. Approximately 50% of these have enthalpy switch over and a limited number are equipped with CO2 ventilation control.  

Boilers

• The university operates 60 major boilers that provide heat and domestic hot water. This number does not include the numerous vertical domestic water heaters located throughout campus. Most boilers are Bryan flex tube and operate at low pressure.

Mechanical Configuration 

• Most buildings are equipped with a dedicated boiler system.
• Exceptions :
  • Oelman, Allyn, Fawcett , Millett and Brehm are served by the plant in Oelman Hall  and a part load plant in Allyn Hall.
  • Dunbar Library , Library Annex and part of the Creative Arts Center are supported by the Library plant.
  • The Student Union boiler system also supports Hamilton Hall and the Joshi Center.

Chillers

• The university owns and operates 28 chillers totaling approximately 8000 tons of rated capacity. Of this total approximately 31% is water cooled, the remainder consists of various air cooled units.

Mechanical Configuration

• As with boilers we have some consolidation in Millett, Allyn, Oelman, Fawcett and Brehm which, are served from the Millett Hall plant. A Student Union plant serves Hamilton Hall. The Sciences plant serves all Biological Sciences, Medical Sciences and Health Sciences.  All remaining buildings have dedicated/stand alone chiller systems.

Energy Usage Details

Energy Program Shortlist