Edge 540 Power Discrepancy

Hey all.  Does any of this make sense?  

I did a 20 minute max power test last night using Wahoo trainer and here are the results:

Total Time: 20:01

Ave Power: 262 W

Max Avg Power (20 Mins): 248 W

Normalized Power: 261 W

Strava ave power: 244 W

How can average power for a 20 minute workout be so different from a max 20 minute average?  How can NP be less than average?

  • check the "averaging" setting in the 540, the zero values MUST be included in the average. this is the problem in your case. (the NP is always calculating with zeroes, only the normal avg power has this "zeroes include/exclude" option. the Strava is also calculating with zeroes by default)