For 40 years I have designed telecom power systems for optimal protection of telecom service continuity. I have also taught for several major telecoms in this regard. Just wondering if anyone out there would like to discuss this subject?

WALT,
few years ago, when I heard the word "flywheel" as energy storage system for power quality, I considered this technology "old" without looking inside.
Now I've changed my idea, flyweels are installed also here in Italy for telecomm power protection. Here levitating high-speed flyweels under vacuum are called simply "supervolani", in one word.
They are particularly interesting to supply high power for few seconds.

Best regards
Mario

Hello Mario:
Thank you for your comment.
I have heard of flywheel energy storage being used in Europe for short time power back up. I find this energy back up approach very interesting and do not doubt that it can have application. I read that a concern is the potential disintegration of the flywheel and that this necessitated that protection from that be provided. One method was to bury the flywheel underground in a vault. Is this still the current method for protection from disintegration?
Kind regards,
Walt

Dear WALT,
in these weeks I'm very busy and I cannot reaply in the proper way.
Disintegration of a 1-piece steel flywheel - well designed - never happened! Speed at the circumference is alittle bit beow sound speed.
Many flywheels are running in data center, offices, hospitals, without any safety problem, also during low-level earthquakes, since meany years ago, for 365 days/365

Regards
Mario