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Energy

Energy and Utilities @ HSPH

We believe that every effort be made to conserve energy and out natural resources with careful consideration of the indoor environmental quality of our built environment.  We also believe this commitment will be beneficial to our students, faculty, staff and alumni in prudent financial management and the saving of energy.

Operations Office personnel understand the importance of managing our building systems portfolio in an energy efficient manner as demonstrated by our standardization on high efficiency lighting fixtures and motion sensors, ventilation system control logic enhancements including equipment start-stop optimization , enthalpy based programming, real time IEQ sensing and control, preventive maintenance practices, continuous commissioning of energy consuming building systems, and demand side management programming.  Operations Office personnel will continue to monitor energy consumption real-time and maintain accurate energy consumption and cost documentation.

Campus Energy Consumption by Source

 

 The Harvard School of Public Health main campus procures electricity, steam, and chilled water from the AES MATEP power plant located on the corner of Brookline Avenue and Francis Street in the Longwood Medical Area.  

 

energy - ttl campus energy 09-10 550 (energy_-_total_campus_energy_fy09.10_550.jpg)

 

The following graph depicts the cumulative financial impact attributed to energy conservation projects resulting in just over $1.3 million or 17% savings.  The green area on the graph shows the savings over time versus the blue area, which charts actual expenses.  Since FY ’97 the unit cost of electricity increased 52%; domestic water 57%; chilled water 59%; steam 103%.

Energy - Total Utility Savings (1.1_total_utility_savings.jpg)

Electric energy consumption for FY ’07 reflects an 8% reduction in electric energy over base year FY ’01.This reduction resulted in an electric energy savings of $166k without considering load growth.

 

energy elec 09-10 550 (energy_-_elec_fy09.10_550.jpg)

Steam

Steam consumption for FY ’07 reflects a 14% reduction in steam consumption over base year FY ’00 which had comparable seasonal heating degree days. This reduction resulted in an annual steam savings of $337k.   

energy - steam 09-10 550 (energy_-_steam_fy09.10_550.jpg)

 

Chilled Water

 Chilled water consumption for FY ’07 reflects a 38% reduction in chilled water consumption over base year FY ’02 which had comparable seasonal cooling degree days.  This reduction resulted in an annual chilled water savings of $620k.

energy - chw 09-10 550 (energy_-_chw_fy09.10_550.jpg)

Domestic Water

Domestic water consumption for FY ’07 reflects an 18% reduction in domestic water consumption over base year FY ’01.  This reduction resulted in an annual domestic water savings of $43k.

energy - water sewer 09-10 550 (energy_-_water_sewer_fy09.10_550.jpg)