Medical Area Total Energy PlantEnergy resiliency, sustainability and reliability for mission critical environments

Addressing mission critical energy needs through MATEP’s microgrid

The Medical Area Total Energy Plant (MATEP) supplies the critical energy needs of five

hospitals affiliated with Harvard Medical School, as well as the Harvard Institutes of Medicine and Harvard School of Public Health. Owned by Mayflower Energy Partners, a joint venture between Morgan Stanley Infrastructure Partners and Veolia, MATEP is also operated by Veolia under a long-term operations and maintenance (O&M) agreement.

Powered by natural gas-fired combustion turbines equipped with heat recovery steam generators, steam generators and several chillers, MATEP produces and distributes electricity, steam, and chilled water used for lighting, heating, domestic hot water, sterilization and air conditioning. Given the vital lifesaving missions of MATEP’s medical industry customers, redundancy and a 24/7 energy supply is imperative. In the event of a grid outage, MATEP can operate independent of the traditional electric grid, ensuring that critical operations continue at the hospitals and research centers served by MATEP.

Reducing carbon footprint with CHP

As a combined heat and power (CHP) plant, MATEP simultaneously generates heat and

electricity from a single fuel source. At times, MATEP is a tri-generation plant, utilizing steam to create chilled water as well. This highly efficient process requires significantly less fuel than when electricity and thermal energy are produced separately, resulting in avoided carbon emissions and greater energy reliability. In 2013, the U.S. Environmental Protection Agency recognized MATEP with the ENERGY STAR® CHP Award for its superior efficiency and environmental achievements. Their analysis indicated the CHP system prevents Greenhouse Gas (GHG) emissions by an estimated 117,500 tons annually – equivalent to the emissions generated by the electric usage of more than 13,000 homes.

MATEP: history and background

MATEP’s origins date back to 1906 when Harvard University built a powerhouse only

yards from where MATEP stands to provide steam and electricity for the Harvard Medical School. It was later converted to a steam and chilled water facility when economical electricity became available commercially from the local electric utility. In the late 1960’s, Harvard University and several area hospitals collaborated on alternative methods to meet future utility needs – paving the way for the total energy plant.

A key driver for the development of the CHP system was to increase energy reliability by decreasing dependence on the local utility. Built in late 70’s by Harvard, MATEP has undergone several major improvements over the years. In the early 2000’s, the CHP plant was expanded to improve operating efficiency and reliability and to meet the growing needs of the connected facilities it serves.

For over a quarter century, MATEP’s energy island capability has ensured reliable steam, chilled water, and electricity for Boston’s prestigious hospital facilities.

MATEP by the numbers74

number of buildings served

5 Harvard-affiliated hospitals

103,000 inpatients annually

2.4 million outpatients annually

117,500 tons annual reduction of the region’s greenhouse

gas emissions (analysis by the EPA)

1 million pounds of steam per hour produced

84 megawatts (MW) of electricity produced

42,000 tons chilled water capacity

EPA award 2013 ENERGY STAR® CHP Award

MATEP is a micro-grid, a power network that can operate independently of the electric grid to ensure an uninterrupted energy supply.

The combination of the production of electricity, heat and cooling systems in one facility makes MATEP a tri-generation or a combined cooling, heat and power (CCHP) plant.

As a district energy system MATEP produces steam and chilled water at a central plant, which is then piped underground to individual buildings.

With its advanced CHP technology,

MATEP simultaneously

generates electricity and useful thermal

energy from the combustion of a

single fuel.

A ‘triple threat’ in energy reliabilityAs a CHP plant, district energy system and micro-grid in one, MATEP provides sustainable and reliable energy

to over 12 million square feet of hospital , clinical and research space in the Longwood Medical Area of Boston.

Engine room from original Harvard power house circa 1906

TRADITIONAL

[COMBINED HEAT & POWER]

35%EFFICIENT

TRADITIONALPOWER PLANT

FACILITY

FACILITYCHP PLANT

UP TO

80%EFFICIENT

FUEL INPUT

HEATING &/or COOLINGPOWER

POWER

BOILERHEAT

Separate heat & power (SHP)

Efficiently produces electricity and thermal energy (Used for generating steam or hot water, heat and power)

Energy loss during transmission and distribution

CHP Reliable, sustainable and cost-effective

Waste heat rejectedto environment

Commercial, Institutional and Industrial

Reduced emissions12 Efficient, integrated energy production

Less fuel consumed and ability to

leverage multiple fuel sources

21 3 Requires separateenergy assets and personnel; increases carbon footprint

ENERGY-EFFICIENCYCOMPARISONS

CHP is dramatically more efficient, reliable, sustainable and cost-efficient

Matep LLC474 Brookline Ave • Boston, MA 02215

tel +1 617 598 2700

info@MATEP.com matep.com

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