Agreed. I do not believe a web server is even required for telemetry / stats.

I have inverters and power conditioners going back 15+ years that have menus that display ASCII text. Yeah, I have to up / down / left / right a bit and the screens are annoyingly small, but I get columns of numbers that are trivial to read. Some of the really old equipment require decoding numbers from a PDF off the website and some of the commercial proprietary gear may require a document paywalled behind a service tech but even that old stuff does not require a web server.

Modern inverters well most of them have massive screens that can make reading this info trivial without a web browser EG4, growatt, etc... I think it just requires more potential buyers and inverter owners to call up the company and request feature enhancements bigger screens, easier menus. Tell them you don't want dependency on Wifi, Internet, Cloud, Phone garbage. Even better get YT influencers to call them up. [1] Just a simple to read menu that the owner and local service tech can read.

Just me personally, I would also like to have options for an API to query from a trusted device and/or SNMP and the ability to define a syslog target or two for alerts. Even my Brother Laserjet has SNMP. I use that to detect power outages uptime via SNMP.

[1] - https://www.youtube.com/c/WillProwse/videos [youtuber videos][DIY solar setups][HN member]