u/ShortingBull

Edit: Solved - it's a limitation of my 12 kW gateway.

I'm trying to maximise battery charging during the 3 hour free window but it seems that my house load + battery charging is being capped at 13.4 kW when I'd expect this to be 19.2 kW (80 amp breaker).

This is in situations when I have no solar being produced so I'm relying only on grid.

If my local load increases above 3.4kwh then my charging decreases by the same amount.

local load:

• 4.4kWh, charging at 9 kW
• 5.4kWh, charging at 8 kW
• 8.4kWh, charging at 3 kW

Relevant Modbus parameters:

• ESS Max Charging Limit: 24 kW
• Grid Import Limitation: 20 kW
• PCS Import Limitation: 20 kW

Setup:

• 10 kWh SigenStor
• Single Phase Gateway
• 80A main breaker
• 28kWh Solar Panels (not relevant here)

Why are my imports being limited to 13.4 kW here?

I'm trying to optimise my importing during the free period (ZeroHero plan) and to know if the following is possible with my 10 kWh inverter, 12 kWh gateway and 48 kWh DC coupled batteries.

Let's assume the current state for my system:

Generating solar: 3.8 kWh
House load: 8.8kWh
Battery SOC: 65%

I want my system to:

Solar (all 3.8 kWh) -> Battery
Grid (10 kWh) -> Battery
Grid (8.8 kWh) -> House load

As such we get:

Battery charging at: 13.8 kWh
Grid importing at: 18.8 kWh

I thought I had the parameters all set for this but as the house load increases the battery charging decreases and it looks like solar is feeding the house load rather than the battery (not for a brief moment, it seems intentional).

ENTITIES (controller outputs)
---------------------------------------
select.sigen_plant_remote_ems_control_mode
  Current value: Command Charging (Grid First)
  Written during: FREE_TIME (charging), EVENING_EXPORT (discharging), NORMAL (self-consume)

number.sigen_plant_ess_max_charging_limit
  Current value: 24.0 kW  (hardware max for DC-coupled battery)
  Written during: all modes

number.sigen_plant_ess_max_discharging_limit
  Current value: 0.0 kW during FREE_TIME, 10.0 kW during EVENING_EXPORT/NORMAL (self-consume)

Am I missing something?

I'm an old school geek. Born early 70's, raised on VIC-20 -> C-64 ->128D -> Amiga -> PC10 -> Intel 386 -> 386 sx25 (all the way up to our CPUs)..

I code. I'm a qualified software engineer that finished in the top 5% of our University (some moons ago).

What I can do today compared to what I could do 2 years ago is wild.

I'm writing code (well, AI is) that would have taken me a year of work last year in 1 hour now.

Shit is crazy.... Like wild crazy..

We live in the future.

I have a very large house that needs reliable internet throughout (and outside). Dimensions we're considering here: 60 meters (200ft) long, 10/12 meters (25ft) wide.

We have 3 wired routers inside and 4 outside.

They're all using the same SSID and password with the idea that devices will just talk to the router with the best connection strength.

I've found this to not work well and needing to turn my wifi on/off at times when moving between routers to force reconnection to a better access point.

Hardware:

- Main switch, tp-link TL-SG1048

All routers are hard wired into this via Cat-6

- ASUS RT-AX55 (stock up-to-date firmware) - The main router with DHCP server running

- 2 Archer AX10 (stock)

- 2 Archer AX1500 (stock)

- 2 DDWRT on an old D-Link DIR-632

On an end device (ie, phone) I often see perfect connection strength but no data goes through or is very slow. Manually connecting to another access point (via a different SSID - eg one of the 5g networks rather than the 2.4g) will usually fix things.

What should I do to fix this?

Edit: Thanks for all the great advice - I've now changed my 2.4 and 5g to have the same SSID, all points are now in AP mode and I've manually configured the channels to be wide apart (1,6,11 for the 2.4g, 36 and 48 for the 5g).

So far things seem to be a lot better - more testing needed, but looking good.