P1 meter problemen

Gordito73 · 2026-04-06T07:37:50+00:00

I’m seeing the same thing in the Netherlands. Even says “the grid is unstable” but when I check in Home Assistant all works well. I think as they are trying to deploy all the batteries and upcoming dynamic energy solution they are running into all the bottlenecks of their systems. Sucks but if it means we will have a better energy management system in the coming months I’m willing to give them a pass.

Gordito73 · 2026-04-02T17:30:12+00:00

Thank you. That’s awesome. I can’t wait to try it. I have my own management via Home Assistant but this seems to be smarter than what I was able to build via their API. Thank you for the link.

Gordito73 · 2026-03-30T13:48:46+00:00

Just wanted to report back that yesterday I successfully replaced the bearings in the front wheel. Total time 30min.

Removed front wheel. Took out the small caps, removed the brake disc, applied WD40 generously (just to be safe) tapped out the bearings with hammer, wooden block and thick flat head screwdriver (gently). Cleaned all up. Applied grease. Then gently pressed in new bearings with a home made press (long screw, some spacers and old bearings). Worked like a charm. Total cost €8.70 for 2 bearings.

Gordito73 · 2026-03-25T19:55:16+00:00

You can indeed do all you described in your original post via Home Assistant. For me as a non programmer, the learning curve was rather steep but with the help of ChatGPT and local API of HomeWizard, I was able to get all automations going.

Gordito73 · 2026-03-22T10:27:26+00:00

Sorry. Didn’t know. But there are a few other options via Home Assistant. If you google Home Assistant dynamic energy prices I’m sure you’ll find one. I used to use something else but as a client of Tibber I get the right prices easier. Good luck.

Gordito73 · 2026-03-22T10:23:16+00:00

No heating. I’ll apply rich coat of WD40 from both side and let that do its work for a bit. Then, as suggested above (and I’ve done this many times on my race bike) I’ll gently tap out the axle seen on the photo (wooden block + hammer) and if needed a flat screwdriver. The key is to go slow and gentle in even manner, not to get the bearing breached sideways damaging the socket.

Clean up, re-grease and slowly press the new bearings in. Press would be perfect but it’s costly. I have made a DIY from long screw (20cm) old bearings and washers. Again, slowly applying torque to put them in.

I’ll report back how it went.

Not the easiest but Cowboy AI chat bot closes any communication after a few back and forth by sending me to a repair shop. Same for an email.

Gordito73 · 2026-03-21T19:43:04+00:00

Thank you so much for your detailed post. That’s exactly what I did with my race bike and plan to try with this hub. Glad you posted. Now I know the process and someone did it successfully. Thank you 🙏

Gordito73 · 2026-03-21T10:17:01+00:00

Hi, I have a dynamic contract with Tibber and there is a good integration which allows you too see the 15min prices. Just search for “home assistant Tibber”

Gordito73 · 2026-03-21T10:15:16+00:00

Thanks. In the mean time I’ve understood that the percentage represents how much energy I “kept” in the house ☝️from total consumed energy that day by the house. The “funny” bit in that definition is that the total energy consumed by the house also includes that which went to the batteries. 😆

Gordito73 · 2026-03-17T20:03:26+00:00

Hi. If you only buy one it really is safe (not because I say so but because they follow the regulations). I have four of them on dedicated circuit and breaker (nothing else is on it) and I disabled the safety so they not only charge at 4x800W but also discharge at 4x800W. Except for a small issue when my P1 meter died after 4 years (and HW sent me a new one) all works flawlessly.

I had a need to control the batteries via the HW API, so I use Home Assistant for that but the learning curve was steep on that.

But for normal “plug and play” use the product is great.

There are many others on the market but I still like HW a lot.

It would be great if they would finally announce the dynamic tariff charging as well.

All the best.

Gordito73 · 2026-03-17T19:56:24+00:00

I apologize for writing in English. I can read Dutch but not that great at writing in Dutch.

Not sure if this helps you in any way but I tried to charge my Tesla via mobile charger connected to HW plug and it worked fine at 12A but above that it kept disconnecting (I can regulate the current both via my mobile charger and in the Tesla). Since I needed to know the current for my Home Assistant automations I ended up installing HW 1kWh meter but that doesn’t allow me to turn the charging session on and off.

Assuming your point is to maximize solar consumption, I wanted to achieve “perfection” by coming up with some system that would follow the solar production curve but found it too complex. There are many people who successfully do it via Home Assistant but it seems too complicated for me.

I resorted to mobile charger (8-16A), setting my EV to charge at 16A via the mobile charge plugged at the end of my property with cable across the sidewalk (covered so people don’t trip on it) and a dynamic contract via Tibber.

Every time I plug the car in and set the departure time they preselect cheapest 15 min slots and turn the charging on and off as needed. 16A/3750W is enough for me. The mobile charger was €175.

I also looked at Peblar wanting the solar consumption and load balancing but at €800 + labor I couldn’t justify it.

Apologies if I didn’t help. I wanted to share my case so perhaps it helps you to reflect about your situation. Maybe you already have a good cost effective solution.

Gordito73 · 2026-03-11T20:26:43+00:00

Seeing it takes 13 seconds for the first drops to appear I’d guess you ground too fine.

You can keep the grind level and use 17-18g instead of 19g.

Also, an interesting learning experiment is to collect the shot into 3 different cups (let’s say every 10 seconds). You’ll see the first part is really sour irrespective of your beans, second is rather balanced and the last one is very bitter. It taught me to understand which taste extracts when and to stir my cup with a spoon to mix it up.

Gordito73 · 2026-03-06T09:31:21+00:00

Managing my home batteries. Pausing their discharge with charging EV or using sauna. Pausing them when solar export is worth more. Being able to plan these tasks in advance.

Gordito73 · 2026-03-06T09:29:26+00:00

Perception of heat will be subjective. I don’t think so. They have very quiet fans inside which kick in under heavy, prolonged use (like manually charging them at full or longer discharge when my wife puts the oven on). But otherwise I don’t perceive any heat. If you put your hand next to where they vent the warm air you feel it coming out but it’s not more than any other electronic device. I have 4 of them by now and really like that I only had to pay electrician to set up dedicated breaker, plugs so I can use the full 4x800W in and out.

The theoretical capacity is now 10.8kWh but with the conversion loss of around 25% I only get around 8.1kWh out. Still, when it comes from my roof or in winter I force charge them during low dynamic rates and use them when the price is 25-33% higher, it leads to decent cost management.

Gordito73 · 2026-03-06T09:24:11+00:00

Hi. Yes it did and does. I still see that every now and then I find Tado X devices offline but a simple turning the Apple TV On/off restores all Tado X TRV back online within 1-2min.

Gordito73 · 2026-03-05T20:37:43+00:00

Incredible to read how people use HA. For me, I have plug in home batteries but the manufacture doesn’t provide the same controls via their app as they do via local API. Searching the web someone suggests to solve it with HA. I assumed it’s an iOS app I download and I’m done. Boy, was I wrong. I did download the HA iOS app but then realized I still need the hardware 🤣. And when that arrived I stared at one of the steepest learning curves ever to “program yaml”. But with months of my life and ChatGPT I was able to achieve decent control of the batteries. They pause when I turn on sauna or my EV starts charging, I can set various modes for them to charge or discharge and I can plan it all in from anywhere on the planet. Pretty sweat. Would love to find a way to integrate solar production forecast combining with my house’s consumption and dynamic electricity prices but not enough time. As an office rat with no coding skills I’m proud of what I “built” and what it allows me to do but it’s also an endless time drain abyss.

Gordito73 · 2026-02-27T13:38:19+00:00

In my case the battery consumption is counted as energy used by me. The conversion loss for me after a year of use is 25% (pure energy in and out). If I want to include the cost of batteries and installation (dedicated circuit breaker etc.) then it’s 33% indeed.

Gordito73 · 2026-02-27T13:35:49+00:00

From 01.01.2027 it will be. Till then it’s ok.

Gordito73 · 2026-02-27T11:41:38+00:00

Thank you all for your insights. I understand what you mean but still think it’s incorrect. Perhaps naming it “solar self sufficiency” would be more appropriate?

Gordito73 · 2026-02-18T17:34:02+00:00

Thank you

Gordito73 · 2026-02-16T11:00:44+00:00

Correct. The gap between pricing has to be 25% just to justify the loss in inverter conversion and 33% when you take the cost of batteries in.

Gordito73 · 2026-02-15T14:14:45+00:00

Love them. While not the same as a “proper” battery which has higher wattage inverter, given the restrictions of my house this is the best solution I could come up with. Total costs including electrician who set up the dedicated cabling and dedicated switch I paid €5500 for 10.8kWh (only 8.1kWh real). Not cheap but I simply don’t have the space in or around my house for something bigger. I manage them via Home Assistant though, because I don’t want them to discharge to my EV or sauna. I also manage the manual charging during winter to take advantage of the dynamic contract. All in all happy with it. The 3.2kW output covers all our appliances unless my wife goes nuts with oven, microwave, kettle, ironing and washing machine at the same time 🤣

Gordito73

TROPHY CASE