I think you're mixing things up. Powerplay is the feature in Quartus (now just called the Power Analyzer) that performs a power estimate based on an actual design. The Early Power Estimator (EPE) is the spreadsheet tool where you enter information about the design to get an early estimate based on estimated resource usage.
I don't think there was an EPE for Cyclone II (too old at this point), but you can start here with the user guide:
https://www.intel.com/content/www/us/en/docs/programmable/683272/current/early-power-estimator-overview.html
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