The complete line of carbonate SureSource products from FuelCell Energy delivers ultra-clean distributed power efficiently and economically. These fuel cell solutions provide distinct advantages over other forms of distributed power generation, including

  • High efficiency with fuel conversion efficiency unsurpassed in the industry
  • Fuel flexibility with the ability to operate on readily available natural gas or renewable biogas
  • Virtually no pollution as SureSource plants emit only trace levels of nitrogen oxide (NOx), sulfur oxide (SOx) or particulate matter

The clean air profile of the SureSource product facilitates clean air permitting, reducing permitting costs and approval time. In fact, the SureSource 3000 and SureSource 1500 are designated as “Ultra-Clean” under 2007 California Air Resources Board (CARB) standards, reinforcing the environmental benefits of fuel cells.

These versatile power generation solutions are available in different sizes and configurations to address a customer’s specific needs, including:

  • Natural gas letdown station energy recovery
  • Fuel cell carbon capture
  • Distributed hydrogen

SureSource 1500™

1.4 megawatts of clean & affordable power

This solution is ideal for on-site power generation for large installations requiring continuous power and value high-quality heat for facility heating and/or absorption chilling. The system is suitable for a wide range of applications, including wastewater treatment plants, manufacturing facilities, hospitals and universities.


Featuring ultra-low emissions, quiet operation and minimal space requirements (about the size of a tennis court), the SureSource 1500 is suitable for locations where combustion-based traditional power generation technologies are not feasible or desirable, such as next to buildings or in space-constrained urban locations

SureSource 3000™

2.8 megawatts of continuous power

Comprised of two 1.4 megawatt (MW) modules, the SureSource 3000 generates 2.8 MW of ultra-clean power. Similar to the SureSource 1500, the system is well-suited for on-site applications and caters to customers with an even greater power load requirement. Ideal applications include large universities, manufacturing facilities, wastewater treatment plants or for multi-plant fuel cell parks to support the electric grid.


The SureSource plants are scalable so that multiple systems can be combined to provide tens of megawatts of ultra-clean energy to meet a customer’s power demand or to supply directly to the electric grid. The clean emissions profile, quiet operation and modest space requirements make these fuel cell parks easy to site in urban areas. This high power density is exemplified in a five-unit, 15 MW fuel cell park located in an urban Bridgeport, Connecticut neighborhood that occupies only 1.5 acres of land and a 21-unit, 59 MW fuel cell park located in South Korea that utilizes just over 5 acres.

SureSource 4000™

3.7 megawatts of highly efficient power

The SureSource 4000 is the largest in the SureSource power plant fleet and generates 3.7 megawatts (MW) of ultra-clean power with an industry-leading electrical efficiency of approximately 60%. This enhanced-efficiency fuel cell system is designed for utilities, large industrial users, data centers and other customers focused on clean and affordable power driven by the benefits and economics of high system electrical efficiency.

Unique configuration

The standard 2.8 megawatt SureSource 3000 power plant is comprised of two 1.4 megawatt fuel cell modules that operate in parallel.  This 3.7 megawatt configuration adds a third module that utilizes unused fuel from the other two modules that would normally generate heat and converts this fuel to electricity to produce additional power.  The SureSource 4000 plant needs about 10,000 square feet, or only ¼ of an acre, providing the benefit of siting this power generation solution where the power is used.


The value proposition for customers and ratepayers is a power plant that can compete with large-scale combined cycle gas plants in terms of both efficiency and economics, yet virtually eliminates criteria pollutants, lends easily to siting in populated, land-constrained areas, and installs relatively quickly. The versatility and scalability in siting of the SureSource 4000 promotes point-of-use installations such as next to existing electrical substations, thereby avoiding transmission and the associated line losses from transmitting the power from distant locations.