Please fill all required fields
Inputs
Current Electrical Rate
$/kW-hr
Current Thermal Energy Rate
$/MMBtu
$/Therm
$/GJ
$/ccf
$/Mcf
Current Thermal Energy Conversion Efficiency
Typically 70% - 90%.
CHP Generator Heat Rate
Btu/kW-hr
kJ/kW-hr
Typically 9,000 - 14,000 Btu/kW-hr.
Cross-check with thermodynamic efficiency below.
CHP Thermal Recovery Efficiency
Typically 50% - 85%.
CHP Equipment Cost
$/kW (Installed)
Typically $800/kW - $1,200/kW.
Outputs
Simple Payback (with Ideal Loads)
years
<--- The simple payback cell provides a good indication of project viability.
A 2 year payback or less means that a 1st order feasibility study should definitely be performed.
Payback between 2-5 years means that the opportunity for CHP is limited unless the electrical thermal loads are well-matched.
Payback greater than 5 years means that the opportunity for CHP is limited.
CHP Thermodynamic Efficiency
Generator Thermodynamic Efficiency
"Spark Spread"
per MMBtu
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