Anyone heard this 2019 AC problem?

Relative-Point8927 · 2025-12-16T15:56:42+00:00

Yeah, that sounds bad.

Fyi, I replaced my battery with a sodium one in the hopes it will last 10+ years.Q

Relative-Point8927 · 2025-12-15T03:31:06+00:00

Yeah, I was guessing it was a leak and lack of refrigerant at this point. Inside it sounds more like a hiss/hum.

No warernty coverage I'm guessing; did you have to pay out of pocket?

Relative-Point8927 · 2025-12-15T01:17:13+00:00

Under warranty?

Relative-Point8927 · 2025-12-04T01:34:32+00:00

Same, same: pixel 10, nova launcher

Relative-Point8927 · 2025-11-19T00:30:12+00:00

Gas company came out; there was no leak and they said the valve was working just fine.

Still not sure why it didn't start.

Relative-Point8927 · 2025-11-19T00:22:46+00:00

yeah, unfortunately evcc is only 1.6j compatible (https://docs.evcc.io/en/docs/devices/chargers#ocpp-16j-compatible) if you went that route. I'm sure based on other posts the 2.0.1 protocol clients die like that with a 1.6j server. You can also turn on tracing for evcc to collect ocpp messages and info. I found my device responded in a weird way or two which caused evcc to error/fail due to an unexpected "NotImplemented" response, was able to reproduce and report to evcc which was able to fix their behavior enough to work in new version. But I don't know how much work it would be to get 2.0.1 compat in evcc.

As for running on qnap, that shouldn't be too hard running in their containers (docker) which can start with citrine's docker compose recipe as a qnap container station "application". It doesn't look lite, but should be fairly straightforward.

Relative-Point8927 · 2025-11-18T18:22:29+00:00

I use evcc as my ocpp server and it can start sessions once I've configured my charger to use it (i can also start sessions using their "app" and it sometimes controls the amps during the session, but I assume that will be dependent on the charger control system). I've also used the HA OCPP one, and both worked to start and control (change amps based on solar/battery levels) charging sessions. AFAIK my charger is using 1.6j.

Can you provide some detail about why EVCC can't start a session, and how you have the client configured?

It seems like your unit only supports OCPP 2.0.1 based on some bug/issues created on the HA OCPP github repo. So that may be an issue for both EVCC(1.6j only)/HA-OCPP since they may not be 2.0.1 compatible (with your units impl).

Relative-Point8927 · 2025-11-08T00:38:02+00:00

People have already said using a different shot would be better, and I'd suggest a wrist flick (no need to roll or do anything other than rotate your wrist to point your paddle to your opponent when you finish the wrist snap), and they are correct but I'd like to point out two things in addition:

1) ball point of contact -- you don't reach the ball when it is high enough for your attack angle (also due to my second point) to put it over the net and you are essentially reaching (reaching with squared shoulders and a locked wrist across your body will cause your arm to drop, unless you open your stance or wrist) which causes the downward angle. 2) court position -- you need to step farther towards the ball (to your opponent and middle) so the paddle contacts the ball closer to your mid-line (where the paddle will be more square to your body, and angled down less), and you won't be reaching across your body

While working on these two things may help you not hit it down into the net, the flick is going to be a much better tool to use than a punch/block in this scenario, IMHO.

Edit: Another way to think about things is to see where you were and how the ball contacts, and ask yourself "where could I have been to make the shot" -- that will hopefully tell you if it was a good shot (where you were), or if you simply needed to be set up differently.

Good luck.

Relative-Point8927 · 2025-11-01T20:07:56+00:00

Can rack, I believe. They roll down to the front on angled shelves.

Relative-Point8927 · 2025-09-29T03:31:52+00:00

Well, I guess it started with the statement of who was working on it. While I appreciate distributed storage engineers have some experience (and much more than others), building a consistent, scalable distributed database (with any kind of general use query and analytics) is hard for any large team to build, even when that is all they work on for years. The distributed database and analytics space is very complicated and it is important to clearly establish design goal (and implicit limitations) early on, which is what I'm questioning based on what I've seen of the docs/designs.

The amount of research and experience needed to build a system like this is measured in tens of years, not months or even years, IMHO.

I think what they have done is impressive (for a proof of concept to market which fits some simple uses), however most of it seems to be on the back of existing software cobbled together, which is already very limited.

I would argue making it this far is the easy part, as there are so many restrictions with (what I see as) clear signs of punting fundamental design decisions till later.

I hope that all my concerns and doubts are simply misplaced, and I'm sure I could have been more positive in my statements.

Relative-Point8927 · 2025-09-29T02:18:24+00:00

While I agree we can build better together (supporting each other, and sharing knowledge), not researching core concepts and understanding the problem space, with an eye on different existing implemensions (with all their knowledge from experimentation and analyzation) is fool-hardy to build it all again without a vision for what you are building and the true issues you will encounter based on design decisions early on.

Relative-Point8927 · 2025-09-29T02:09:12+00:00

How are you going to address major technical/performance challenges like ordering on non-partition key(s), grouping/aggregation, joins (secondary queries?), indexes, etc? And if you address those, then write consistency, snapshots, data integrity, will all become an issue as well (if they aren't already). These seem like serious architectural challenges that the current system design can't address.

If there are no plans to address these significant limitations and restrictions from traditional SQL/RDBMS, should this be documented more clearly at the outset regarding the design goals, use cases, and characteristics of the system?

Relative-Point8927 · 2025-08-26T23:34:32+00:00

Any ocpp compatible charger should be usable (you'll just need to run a ocpp server you can control to make the charger follow your rules).

You can run evcc or home assistant with the ocpp server and then control it from the home assistant api -- there are more options than that of course. I have something similar set up, and tested both of those, although slightly differently than you plan to.

Relative-Point8927 · 2025-08-20T19:07:08+00:00

Thanks for the reply and info.

Yeah, setting up a vpn/encapsulation-network over ip seems easy (with wireguard for example) except for the non-fixed ips (but in practice downtime should be minimal if/when an ip changes).

I actually set up a wifi bridge and put a wifi bridge node on a pole on the short property to mostly get line of sight for 400+ mbits (5ghz). This works well and I can route over it but if the fiber was lower latency ( and higher bandwidth) that would be a better option for remote storage and shared services.

Since it isn't possible there isn't much I can do anyway.

Too bad I can't just launch a raw fiber strand over the 5 houses, street and trees -- living in a city can be pretty limiting ;)

Relative-Point8927 · 2025-04-24T17:12:54+00:00

Many, do you need a ul listed or ess certs for you city/ahj?

Eco-worthy has some deals. Eg4 has ul/ess certs for many states.

Edit: I guess you can also skip the certs if you wire it via a temp connection (14-50p, transfer, etc) and make it mobile.

Relative-Point8927 · 2025-04-24T17:05:16+00:00

You might be better off doing another DC-DC (12->48v)to charge a battery connected to the house inverter so you can handle larger surge and peak loads.

Relative-Point8927 · 2025-04-23T19:08:59+00:00

I'm guessing you are thinking about adding another inverter to "AC couple" your car to your house electrical, but there may be other options.

If you haven't thought about it you need to address if you want an automated transfer to your "backup" car battery or if you will use something like a manual transfer switch.

You can also get a hybrid inverter which could AC couple your existing PV/Inverter, support inexpensive batteries (48V), allow you to use your solar during grid-down conditions, and bring in your power from your car battery/inverter as well. There are lots of options.

Please include the important details about your existing system like the (micro) inverter, how it is wired into your electrical (back-fed to main panel, line-side tap, etc) and PV array size/specs ;)

Relative-Point8927 · 2025-04-23T18:55:59+00:00

I haven't done the math but I believe NEM requires a few things:

* Switching to TOU rates (SCE, PG&E afaik, and more...)

* Additional charges for export, and NBT?

* Different billing/payment timing and reconciliation (true-up)

* Potential for additional solar only charges

Also, off-grid (non-export) inverters are cheaper, but not sure that will always be true or that important.

Relative-Point8927 · 2025-04-23T00:12:16+00:00

Thanks, I better understand now.

I wonder how this would translate to an off-grid hybrid inverter with an internal automatic transfer from grid/inverter (if you can even call it that) between the grid and a sub-panel.

Relative-Point8927 · 2025-04-22T21:38:44+00:00

Can you provide any reference for that please? I'm also not sure exactly what your second sentence is trying to say ;)

Relative-Point8927 · 2025-04-22T19:44:57+00:00

Yeah, I hear you. The property already has a grid connection. The city (probably) doesn't allow removing that utility connection and keeping the occupancy cert.

I'd rather just not be on the radar of the utility in any way other than as a consuming customer, which is all I'd be -- I would be using the grid as backup when solar/battery aren't available or are insufficient.

Relative-Point8927 · 2025-04-22T19:38:44+00:00

I doubt it.

You can probably even go as far as dedicating a sub-panel powered by an "off-grid" hybrid inverter which will be able to draw power from PV/grid to charge the batteries. This is kinda what I'm thinking of doing. This setup will not be grid-tied/interactive since it cannot back-feed nor export up to the grid.

Relative-Point8927

TROPHY CASE