CHPQA guidance note 27: Determination of CHP qualifying power capacity (QPC)
Guidance on determining CHP QPC, the maximum power generating capacity of the CHP scheme that can be considered to be generated in Good Quality CHP.
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CHP Qualifying Power Capacity (CHP QPC) is all or a proportion of the rated power output or total power capacity of the CHP scheme.
For schemes that achieve or exceed the quality index threshold under long term annual operation, the CHP QPC is equal to the CHP total power capacity of the scheme.
Schemes that do not meet the above criterion must calculate the quality index at maximum heat output under normal operating conditions (MaxHeat).