Normalized Power® (NP) is a power averaging method, measured in watts, used to compensate for changes in ride conditions for a more accurate depiction of power expenditure.
Conventional power measurement is based off of a steady resistance. Riding on a bike trainer or stationary cycle provides a steady resistance allowing conventional methods to give you an accurate power reading. However, riding outdoors produces changes in resistance (e.g., changes in elevation, terrain, or wind). NP® takes into account the changing resistances to provide more accurate power output data.
The purpose this serves is directly related to your training. NP® takes into account your body's reaction to change in exercise intensity due to changing resistance. This allows for a more accurate representation of your power output which in turn allows you to train within more realistic power confines. This gives way to a more productive training session.
Devices that will show Normalized Power®:
If NP® is not an optional data field, update the software using Garmin Express.
You will find NP® in Garmin Connect on the activity's details page. There will be a Power section within the Details box.
For more detailed information on NP®, view the Training Peaks website.
Normalized Power® (NP), Intensity Factor® (IF), and Training Stress Score® (TSS) are registered trademarks of Peaksware, LLC.
Garmin Express - https://connect.garmin.com/en-US/start
Peaksware, LLC - http://trainingpeaks.com/