The Pfizer Fuel Cell System is a 5,600kW energy storage project located in Groton, Connecticut, US.

The electro-chemical battery energy storage project uses fuel cells as its storage technology. The project was commissioned in 2016.


The Pfizer Fuel Cell System is owned by Pfizer (100%).

The key application of the project is on-site power.

Contractors involved

FuelCell Energy and Pfizer have delivered the battery energy storage project.

Additional information

FuelCell Energy, through a direct subsidiary, retains power purchase agreement and long term project cash flows with financing provided by PNC Energy Capital .
Pfizer purchases the power and heat generated by the ultra-clean fuel cells as it is produced under a twenty year power purchase agreement from a direct subsidiary of FuelCell Energy.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.