Generator or Giant Battery Bank?
Every few years or so, our building's power gets shut down for routine maintenance. We have a Diesel generator in place to handle such outages. Power in HK is incredibly stable and reliable, and other than the odd brown out during severe weather conditions, there hasn't been a single un-planned outage in over 6 years.
As such we don't use it much and it kind of gets a bit neglected. As long as it's working, it will likley stay in place, but I'm wondering weather or not generators still make sense in the future (of course some places will have more justification than others).
Wondering if large battery banks are starting to make sense. Batteries are getting denser and cheaper. Flow batteries also look very promising as they apparently do not degrade (ever) and have extremely deep cycles (can fully charge and discharge without any adverse effects).
Anyone using very large battery banks over generators? What's your capacity at full load (in hours)?
Would end users have any less confidence in a host that primarily relied on large battery banks rather than a traditional generator?