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Just to round off this thread, got my immersun unit in place and has been happily working its thing. Difference between this and the solarimmersion was +£200, so quite a bit dearer But once it’s wired it self tests and sets up automatically and configured the CT clamp direction, so no fiddling...

If it burns, it burns ! Lol, fair enough then!

Are there any up to date charts available that cover orientation up to 120 deg, my charts only go to 45 deg. Also, are there any calculators that can work out generation when over-paneling a system. Been looking can't seem to find anything.

Oh, in that case probably rig up a go-pro on time lapse and catch what's happening that way. but again , you only get that days sun path. I have this app on my iphone https://play.google.com/store/apps/details?id=com.sunnytapps.sunnytrack&gl=US Costs a fiver but will give you the sun position...

Some nice work here chaps well done. I can see the fascination and enjoyment you get from making your own batteries. THIS IS NOT A CRITICISM... but there seems to be a lot of flammable wood and MDF in these photos. Have you considered using something along these lines...

Is there a guide available to calculate the generation from easterly and western orientated roofs.? I have got a job to calculate and the orientation of the roof is 240 deg south west, or 60 deg off south. My MCS charts only go as far as 45 deg off south. Reason for asking is i might end up...

That will only give you a 'spot' reading at that particular time of year and time of day. Are you trying to calculate the system generation ? There are tables that will work out yearly irradiance from a post code, angle of roof and orientation from south (in degrees)...

Forget that John. Plot thickens. Got a reply from solarimmersion, this unit does not work with battery storage. Which is annoying as i rang them to discuss this unit before i bought it, but it's still my fault because i didn't specifically say i had battery storage, the fact they didn't...

I get what you’re saying John, my unit came from the factory set at 50w, and was still triggering. Have a look at my photos and let me know what you think these settings do. It only has these two. So probably not as advanced as the EDDI unit.

Still waiting a sunny day to see what happens. And still waiting for solarimmersion tech to ring me. Glad this is mine and not a job, with backup like this they really do leave you in the $hite.

Here are the settings on my unit This can be adjusted up and down. This setting can’t be altered, or rather you can but just goes back to off when you exit the menu.

Great reply, thanks. Yes it is similar to what i now believe is happening on mine, I will re read your post a couple of times to soak it in, but threading a single through the inverter CT could be worth trying on my system if nothing else works. The result is, you get export, the immersion CT...

I’m not on a tariff and gas heats water cheaper than electric, but not as cheap as wasted electric, you know around 60% of the worlds produced electric is thrown down the toilet, it’s called stranded energy. I know you are an environmental chap so might be interesting to you ( you may already...

Immersun and solarimmersion are all the same lot, the box it came in had immersun written on it. Anyway the buggers haven’t bothered ringing me back yet so I have altered the power margin up to 500w. Since weather today is shite, I tested this by flipping the CT clamp so it thinks I’m...

Maximum demand is a calculation of appliances in use and there is an allowance for each type of appliance, not necessarily adding up all the appliances together, i use the guide in the IET on site guide. But even using this requires additional common sense as you can easily go over your main...

Not interested in arguing over the price of gas. Some good answers so far chaps thanks, joules, I can follow vaguely what you said, but bring a spanner man my philosophy is what happens inside the black box- stays in the box, I concentrate on getting it to work ! The answers are adding up and...

The immersun looks and sounds the same as what i have, and assuming you have batteries on your system and the immersun is working fine, what do you think the reason is yours works and mine doesn't?

Just had a look at the EDDI controller. It reads the same as the spiel that came with the one i have fitted from https://solarimmersion.co.uk/ Quite a difference in price though, i wonder why 🤔

Thanks Binky, So you think the Immersion CT clamp responds quicker than the inverters CT clamp, Immersion pulls load, inverter 'sees' this as just load, and sends power to it accordingly, by passing the battery. - As it is intended to. Makes sense. Getting somewhere.

Just to simplify, PV system imports and exports normally, only exporting when battery full and no loads on. Fitted the immersion optimiser, it now operates when battery is not full, but only when PV is generating power (don't know how much before it starts to operate) will check again in...