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HOMER Pro 3.9

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Generator Heat Recovery Ratio

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Input Variable





This input is relevant only for cogeneration systems, also called combined-heat-and-power systems or CHP systems. Such systems serve both electric and thermal loads, with waste heat recovered from the generator meeting some or all of the thermal load. If you do not want to model a cogeneration system, leave this input at zero.

HOMER assumes that the generator converts all of the energy of the fuel into electricity and heat. The generator's fuel curve specifies how much electricity it produces for a given fuel input, and HOMER simply assumes the remaining fuel energy is converted to heat. The heat recovery ratio is the percentage of that heat that can be recovered to serve the thermal load.