InvestorsSales inquiry About us We deliver clean innovative solutions to enable a world empowered by clean energy FuelCell Energy, Inc. (NASDAQ: FCEL) is a global leader in fuel cell technology with a purpose of utilizing its proprietary, state-of-the-art fuel cell platforms to enable a world empowered by clean energy. We provide comprehensive turn-key solutions for our customers that include everything from the design and installation of a project to the long-term operation and maintenance of the fuel cell system. The global fleet of SureSource™ power plants spans three continents and is leading the industry with millions of megawatts of ultra-clean power produced. Utilizing state-of-the-art fuel cells, our SureSource plants provide environmentally responsible solutions for various applications such as utility-scale and on-site power generation, carbon capture, local hydrogen production for both transportation and industry, and long duration energy storage. Our systems are catered to meet the needs of customers across several industries, including utility companies, municipalities, universities, government entities and a variety of industrial and commercial enterprises. We leverage our core capabilities by forging strategic relationships with carefully selected business partners that bring power generation experience, financial resources, and market access. We offer financing structures that enable power users to benefit from the multitude of advantages of clean onsite power while avoiding an up-front capital investment. Utilizing long-term power purchase agreements (PPA) or lease structures, the end-user of the power hosts the installation and only pays for power as it is delivered. Our corporate office, which includes the research & development department and the Global Monitoring and Control Center, is located in Danbury, Connecticut. North American manufacturing is located in Torrington, Connecticut. European manufacturing is located in Taufkirchen, Germany. Contact Us today for solutions to your power generation challenges. FuelCell Energy delivers efficient, affordable and clean solutions to enable a world empowered by clean energy. For investors Financial information Stock information Investor FAQs Contact investor relations More information Careers Sales inquiry form News CONTACT US 3 Great Pasture Road Danbury, CT 06810 (203) 825-6000 info@fce.com © 2018 FuelCell Energy, Inc. All rights reserved. Legal | Site Map

InvestorsSales inquiry FuelCell Energy delivers efficient, affordable and clean solutions to enable a world empowered by clean energy. For investors Financial information Stock information Investor FAQs Contact investor relations More information Careers Sales inquiry form News CONTACT US 3 Great Pasture Road Danbury, CT 06810 (203) 825-6000 info@fce.com © 2018 FuelCell Energy, Inc. All rights reserved. Legal | Site Map