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I'm not sure what you are doing wrong but it worked for me. I added these objects to your IDF:

Output:Variable,*,Heating Coil Defrost Electricity Rate,Timestep; !- HVAC Average [W]
Output:Variable,*,Heating Coil Defrost Electricity Energy,Timestep; !- HVAC Sum [J]
OutputControl:Files,Yes;

(The last object allows EnergyPlus to natively write the CSV file directly without having to convert the data from the ESO file.)

When I ran the file, defrost outputs for each heating coil were in the eplusout.csv file. Here's one example:

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