But I was logged into the TEG and it was showing power flow. Just could not get to the REST API
-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
Powerwall 2 Available Energy After 2 Years
- Thread starter FLB46169
- Start date
Understood, but it didn't work. So the standard IT move is a power cycle or reset. Something might not have been initialized correctly after the last firmware update.
Can you post a couple screenshots from the browser showing the power flow and the error message?
Isn't that the cellular IP? What happens if you use the IP address from your wireless router? Does http://teg-2hp/api/system_status work?
No, its my LAN IP address for the TEG. I verified in the TEG Network Connections. I'll try the teg-2hp
Yes, the API returns a JSON block. Glad that you got this working. Seems strange that they don't degrade uniformly. There was another user with 3 PWs that has the same behavior. Might be coincidence, might be something else.
Should the max be 13,500? or 14,000? I believe there was discussion on that, but no conclusion?
The PWs were specifed as 13,500 when I had them installed in September 2020. I saw that post about a spec sheet saying 14,000 but they did not ring true to me.
We know that the app presents a different full percentage than what you get if you log in directly which seems to be an expectation buffer. This also applies to the reserve threshold.
If 13,500, then I'm good with the 2, but not so much with the 1st one.
Yeah - I saw that Reserve difference when I logged in. Due to excessive heat, I have my reserve set pretty high at 60%, but the TEG said 63%
70% of 13.5 = 9.45. Tesla likely wont do anything until a powerwall hits that number. Both of mine are mid 10s after 18 months, but I dont think they were ever 13.5. Tesla tier 1 rep slipped up during one conversation I had and told me that on installation day they reported as 12.5 (tesla apparently has that info).
I have been debating on whether I push it or not, but since I figure that my powerwalls will lose another 1kW over the next 8.5 years, I will end up with a replacement at some point anyway.
I'd say you are pretty much guaranteed replacements which in the end might be a good thing
I wonder if they are going to use that 12.5kWh as the starting point and make you get down to 8.75kWh before replacement?
I thought about that, but they sold me a product that was advertised as having 13.5kW of storage each. Unlike the cars, where they removed the battery size, the powerwalls were sold with a specific amount of storage available. Thats why I have been considering pushing for a replacement, but figured that once I got a replacement, it would likely be refurb, and would only end up having something "above warranty" numbers, or "above 9.45 storage".
I'm sticking with the idea that a number reported as "nominal_full_pack_energy" is on a scale with a full value of 14.0 kWh (as per the spec sheet). If not, it is misnamed. This would be easily clarified by checking https:/x.x.x.x/api/system when the Powerwall is at 0% and seeing what it reports for "nominal_energy_remaining."
Cheers, Wayne
Cheers, Wayne
I don't see why this number would be scaled in the API called. Looking at the PW I do see that the Total Energy is listed as 14 kWh and the Usable Energy is listed as 13.5 kWh. My PWs are both reporting over 13,500 for the nominal_pack_energy fields, so this definitely seems like an absolute number.
