Oh, if you take the www off, it does exist but it is in fact out of service.
http://powerplay.psaudio.com/
At least they give an explanation, but it appears the local access thing doesn't support viewing performance statistics:
With our apologies we are temporarily disabling internet access to Power Plants and PowerPlay units worldwide. With the many thousands of units around the world the load on our servers has finally exceeded our capabilities of keeping them current and up to our standards. We are in the process of rebuilding new servers that will solve this problem and, while we’re at it, should provide a better user interface and easier access to your performance data. We apologize for this inconvenience.
This will in no way impact the safety, performance or sonic improvements offered by the Power Plant AC regenerator. Your products will continue to operate and provide their amazing benefits as they always have.
While our servers are down you will still be able to access the unit’s extended control features such as zone naming and web access to turn on and off zones. Scheduling and performance data will be unavailable.
To access the control features of Power Plants and PowerPlay units you can use your local home network and any web browser. Instructions for local access of your Power Plant or PowerPlay device follow.
If you have any questions please contact us at
service@psaudio.com. Thanks for the understanding and we will return service as soon as possible.