Weather Underground Data Upload

Hi there. Trying to set up temperature and solar radiation upload from WU, I have read a number of posts, but am stuck on one detail. My weather station shows up fine on WU. I am unsure if where PVoutput settings ask for the station API key it is the station identifier key that is used by WU to link to my weather station, or do I need to join WU as a developer and get a separate API to push the data from their server (I suspect the latter). I could not find any help on this in the forum or help documentation.
Best regards
Mike Parfitt

See Weather API Key under https://pvoutput.org/help.html#autoupload-weather

Hmm, that is indeed where I started . So entered my station ID (IDOONANT3) and the 8 digit station key from the “my PWS” page of my station. I have directed temp and solar radiation to extended parameters V8 and V7 respectively. No data uploads and these settings have been active for over a week. This prompted me to think I was missing something.
Mike Parfitt

The key entered is not correct. It is usually 16 characters in length.

http://www.wunderground.com/weather/api

After logging into the above, click Key Settings.

The key appears in the red boxes shown below. Click on Create a New Key to generate a new one.

Thanks BB,
I just needed to sign up to their developer option in addition to having a WU account. That gave me the 16 digit key as you said, and all now works well. Thanks for the rapid replies.
Mike Parfitt