InvestorsSales inquiry Economics and social responsibility We continuously work to achieve the economic goals our shareholders and other stakeholders expect by delivering on innovative initiatives, cutting costs, and continually improving product performance as well as corporate practices and governance. FCE’s business processes are certified to ISO 9001:2015, which reflects our focus on producing quality products and an emphasis on continuous improvement in all facets of our business. In addition to our drive to make great products, we believe in being a positive force in our community and the world. For example, we do the best we can to support community groups like the United Way, the Susan B. Anthony foundation, Adopt A Street and our local food banks. We also strive to work responsibly toward a sustainable social and economic future for the people in the deepest reaches of our supply chain: 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 SERVING A GLOBAL MARKET We serve global markets with our clean and affordable solutions Our fuel cell solutions are helping our customers on three continents reduce their operating costs, enhance energy resiliency, and advance their sustainability initiatives. Learn more about the attributes and benefits of fuel cell power generation by region: 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 Use case: Industrial processing facilities 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 Heating & cooling 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