r/uksolar

All,

I installed a 15-panel array, PW3 and expansion pack in mid-April. Octopus Energy UK set the outgoing tariff three days ago.

What works well:
- Charging from the grid
- Exporting excess solar power directly to the grid

What doesn’t work:
- Any remaining kWh in the battery

To make this happen, I set up the periods for exporting from the battery on the Tesla app with very high import and export rates. I also tried using the Netzero app to force exports and imports at specific times of the night. The force imports and charging from the grid instructions from Netzero definitely work. However, the force exports, even though the logs show ‘success’, don’t actually export.

I’ve also tried resetting the gateway a couple of times, but it hasn’t worked.

I’ve attached screenshots of the setup. Do you have any ideas on what I might be doing wrong?

Thank you

Hi Folks!

I've been working on a home energy simulator app the past few months for PV, batteries and heat pumps, which is designed to give a realistic picture of things like import and export and return on investment. Was really hoping to get some feedback on it...

It lets you:

- Specify location, batteries, inverter, PV, tariff and consumption data (or generate a realistic profile)

-Test different charging strategies (e.g. forced night-time charging vs maximising self-consumption)

-Optionally include a heat pump to estimate how a combined PV-heat pump system would perform

I've sanity checked it again my own system, but would be keen to compare it to other systems installed. And if anyone has any feature requests? My background is in software engineering (~8 years) and have worked at a couple of start up renewable energy companies doing similar systems modelling.

The tool is free to use (no sign up required)

App: https://solarbutter.co.uk/app

Short demo: https://www.youtube.com/watch?v=RDM2oWGR32g

Thanks!

Alex