FUEL-CELL CHP COMPARISON WORKSHEET
Yenra | Updated September 17, 2026
Article: https://yenra.com/direct-fuel-cell-power-plants/

Purpose: compare useful electricity and heat at a consistent facility boundary.
Start with interval demand data and supplier documentation. Keep all fuel inputs on the same HHV or LHV basis. Repeat over representative intervals; sum energies for an annual result.

Facility / interval / supplier / exact system / document date:
Fuel input in the interval (kWh, state HHV or LHV):
Net useful AC electricity after specified auxiliaries (kWh):
Recoverable heat and required temperature / pressure:
Heat actually used by the facility in the interval (kWh):
Electrical efficiency = net electricity / fuel input x 100 (%):
Total useful-energy efficiency = (net electricity + useful heat) / fuel input x 100 (%):
Annual service, maintenance, degradation and downtime assumptions:
Alternative electricity and heat supply and costs:
Emissions boundary, fuel assumptions and comparison evidence:
Outage support requirements and evidence:
Supplier commitments / unresolved questions / responsible owner:

Fictional example: 1,000 kWh HHV input, 450 kWh electricity and 300 kWh used heat give 45% electrical and 75% total efficiency. With 100 kWh used heat, total efficiency is 55%. Rejected heat is excluded. These are invented quantities, not product ratings.

Primary references used in the article:
https://www.epa.gov/sites/default/files/2015-07/documents/catalog_of_chp_technologies_section_6._technology_characterization_-_fuel_cells.pdf
https://www.epa.gov/chp/methods-calculating-chp-efficiency
https://www.epa.gov/chp/what-chp
https://www.sec.gov/Archives/edgar/data/886128/000114420406001659/v033315_10k.htm