Pfizer – Andover - 10 MW CHP System - Case Study
Quick Facts
LOCATION: Andover, MA
MARKET SECTOR: Biotechnology
FACILITY SIZE: 950,000 square feet in 7 buildings
FUEL: Natural gas
PRIME MOVER: Two 5 MW Solar gas turbines
POLLUTION CONTROL: SCONOx emission control
system using a proprietary catalyst
OPERATION: 24/7
SYSTEM CAPACITY: 10 MW, 80,000 lb steam/hour
ANNUAL ELECTRICITY GENERATION: 51,000 MWh
USE OF THERMAL ENERGY: Manufacturing process,
heating, steam turbine driven chillers
SYSTEM EFFICIENCY: 78%
ANNUAL ENERGY SAVINGS: $4 million
BEGAN OPERATION: 1999, expanded in 2003
Project Overview
Pfizer is a global health care company that develops and produces pharmaceuticals and consumer products. The company uses combined heat and power (CHP) in several of its facilities. In Andover, Massachusetts, Pfizer has a 70‐ acre site with seven buildings, which house both R&D and manufacturing facilities. A CHP system was installed in 1999 to provide increased power reliability and utility cost savings. In 2003, the system was expanded to a total capacity of 10 MW.
Reasons for Installing CHP
A reliable power supply is essential at this facility because of biotechnology operations that require electricity, steam and other support utilities (compressed air, oxygen, carbon dioxide, purified water) at all times. CHP is a key part of a site utility network that has been designed to provide redundancy, described below, so that an outage of any single utility or piece of equipment will not impact site productivity.
At times when outages are anticipated, Pfizer can temporarily separate their facility from the grid and operate solely on electricity from the CHP system. For example, the staff switched to island mode before a blizzard in January 2015. The storm brought high winds and nearly two feet of snow to the area, while Pfizer was able to continue operations without concern about potential disturbances to the grid.
The efficient CHP system also provides substantial energy cost savings and contributes to Pfizer’s environmental commitments by reducing pollutant emissions.
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