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Which tools are you using? Those I listed in the post I mentioned above? The first one in the list gives for my 4kWp a generation of 3500kWh/y. Since 2016, I have generated an average of 3850kWh/y. (Cheshire)

Hi @chris020 I am also lost with the Octopus tariff. Everyone know the Eco 7 but they seem to be more from what I saw on the forum. Maybe they are referring to old tarif no longer available. The conditions of the tariff should match your needs. If you are never going to charge EV or...

You are correct, AC Coupled only. This is what I am in the process of doing.

Without batteries, I agree but with batteries (if they are sized correctly), I'll agree with Bladerunnerpv

I won't repeat what @binky has said about the current market situation. Have you had a return on investment calculation? What is their estimated generation per year? You'll find here website that will let you estimate what you could expect from your solar...

As always it is down to risk management!! On the side note, I am going to have 5 panels on the wall. At the top I will put some bird spikes. There was a video I watched on Youtube from a guy who installed panels on the wall. Later he realized that the birds like to have a look at his garden...

That is what I meant and understood when you say about replacing the inverter. I agree downstream of the inverter you can add batteries no problem. I think we have the same understanding wrt FiT System

I do not have such protection on mine installed in 2016 and I have never had any birds nesting and I have not considered them for my new install. I personally do not really know what problem they could cause. I could imagine that their droppings could "attack" the cables over time. I see the...

Unless your existing system is with FiT

12 batteries!!!. How will you manage when one inverter has charged its battery but its panels are still producing so they can also contribute to charging the others?

Thanks @arwooldridge . I read somewhere they have an option for floor mounting. When I know more I'll give you the info. 8 batteries in a raw on the wall must be impressive!! Do you have any photo by any chance?

Maybe another DIY project for @johnb2713 who now has nothing else to do since his batteries are making wonder :)

Hi folks because we like to torture our brains, understand and improve things here is a topic. OK, in England this might affect the panels only a few days per years. However, I find it very interesting to better understand how things actually work. At minute 11:40 we can see the impact of the...

I'll let you know once I know what the designer has decided

100% DoD does not exist. I have learned from Sunsynk who also claims 100% DoD that they actually keep about 10% hidden. In other words if the battery is 10kWh, they say it is 9 with 100% DoD. A bit of a marketing blabla. So if you take 2 Solax you also get around 10kWh of usable storage despite...

Well, at the elementary level, physics is what it is. What the manufacturers do is what you just described. They arrange the cell differently depending on what they want to achieve. So you can achieve the results charge/speed either way as long as you have the correct number of cells, either...

I agree the C factor is to be taken into account but you do not see it often being advertised. I also agree that the charge or discharge is not linear. For the data I mentioned above if I take the growatt the 9 batteries have a capacity of 23kWh and the Solax 4 batteries 23kWh. So same "size"...

@johnb2713 A good two weeks with your homemade batteries, how are things going?

They must be somehow advantages 1) This is new so they would not develop something new if it did not bring any value. 2) car manufacturer are pushing for higher voltage If I compare with the growatt batteries (I know they have different families but I take the principle is the same) for...

You are right that the bottleneck can be different on the direction of travel and both must be considered. This said, they must not necessarily be equal. My point of view is that you want to charge the batteries as quickly as possible because: -The radiation is intermittent so if your panels...