Firstly - congratulations on a wonderful project and a what looks like a very helpful community. I’ve been searching for weeks (literally) to find what I need and this looks like i!. I’ve a lot of reading to do before I understand exactly what is possible. The monitoring part will probably be my first development and build but even before that, I need some help please with control. It’s a bit of a strange question so bear with me. Now to my problem …
I have 10kWp of solar PV and a 500L thermal store, primarily heated now by gas boiler, but there are also three x 3kW immersion heaters and I specified two sensor pockets for direct measurement just in case. I obviously want to use as much of the generated power as possible on the heaters without drawing power from the grid when the clouds com. Gas backup will remain the cheapest option for grey days and night time.
So far, so good, but even if I bought one of the off-the-shelf commercial units there’s nothing available in the UK to control multiple individual loads (at least from anyone willing to answer the phone to a technical question).
And then I found this:
It has six proportional or PWM outputs for SSRs plus two relay outputs, four temperature inputs, lots of other good stuff and will measure/control up to 100A of generated power. Sadly, I can’t get any technical advice from the Czech manufacturer and would be pretty much flying alone.
My problem is how to use it to power the three x 3kW heaters? More specifically, I’m not convinced that SSRs are the way to go and would prefer a triac circuit akin to that on the back end of the eMon.
Could I ask some kind soul to have a quick look at the website and the manual and tell me if I’m on the right track?