Solar panels and battery - any real world reccomendations?

Move to octopus initiated, they made me set the DD to that of my annual usage figure despite me telling them they will be way off due to the recent solar install! I assume I can amend it down myself once the account is live?

Next decision, move to Go and charge overnight for the winter (when they let you again) or go onto Outgoing for the 15p export.
 
BUDFORCE said:
The only thing is though, I am not sure how easy it would be to moved the very top roof tile if I needed as its set in concrete/morter to the point of the roof
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It should be fairly easy to remove the ridge tiles, when I removed mine I used a combination of a stone cutting disc, and a mortar rake on my angle grinder. Mortar rake is available from Screwfix or Tool Station. Once you've removed enough mortar, it should be possible to loosen and remove the ridge tile. Generally you need to slide the above tiles up to remove a lower one, but in some areas depending on wind loading some tiles may be nailed in place.
 
Ron-ski said:
It should be fairly easy to remove the ridge tiles, when I removed mine I used a combination of a stone cutting disc, and a mortar rake on my angle grinder. Mortar rake is available from Screwfix or Tool Station. Once you've removed enough mortar, it should be possible to loosen and remove the ridge tile. Generally you need to slide the above tiles up to remove a lower one, but in some areas depending on wind loading some tiles may be nailed in place.
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Ok thanks.

See it's quarter past four now, I'm generating 370w off my 12 panels.

The sun is directly hitting that garage roof right now, I d be generating over a kw I reckon if I got 3 panels up on that.
 
Bug One said:
Where are you seeing that? Octopus site says the same hours as before, just at 12p now

Octopus Energy FAQs

What is Octopus Go, and how do I join?
octopus.energy octopus.energy

Intelligent is 10p now.
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Yeah its in the description but its not 7 hours. Eco 7 about 2 lines below the title.
But looking it up the old ones also said Eco 7 which is just odd
 
Okay, so any reason why I cant switch to this once my account is live? Seems like the best of the bunch... 7 hours at 12p. I guess needing a special Eco7 meter is a thing of the past and my SMETS2 can be changed to work with it?

Will start fully charging the battery and running dish washer / washing machine over night through the dark months :)

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iwrox said:
Okay, so any reason why I cant switch to this once my account is live? Seems like the best of the bunch... 7 hours at 12p. I guess needing a special Eco7 meter is a thing of the past and my SMETS2 can be changed to work with it?

Will start fully charging the battery and running dish washer / washing machine over night through the dark months :)

t88fne.png
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Is that 7-hour time period 0.30-7.30am? like the old economy 7 tariffs.

Cannot see a reason why you would not be able to get that tariff.
 
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Sat here watching the football and bored I decided to see what the house has cost this year. Electric, heating oil and water. We don't have gas.

3kw Solar, 13.5kw Powerwall Battery, the whole year on Octopus Go @ 5p (just had to change to 7.5p Go). Nissan Leaf EV



Looks like it's going to be easily under £500 for the year which isn't bad for a house and 15k miles driven.
 
4200kwh generated from a 3kwp solar system is very good for a calendar year, must be almost ideal south facing or longer than a year?

Mixing GO with FIT is making quite a difference as well, if you had the solar on a good FIT rate, then the GO on top is just icing on the cake, unstoppable combo. Can see FIT payments are £1.1K coupled with cheap energy, some months must be negative energy usage.
 
Destination said:
That's utterly brilliant. Diesel for that milage alone would cost over 3K, before any home energy.
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I had a diesel van that I sold for similar money to what I paid 4 years previously. That funded the battery purchase. I then leased the car with the fuel savings.
HungryHippos said:
4200kwh generated from a 3kwp solar system is very good for a calendar year, must be almost ideal south facing or longer than a year?

Mixing GO with FIT is making quite a difference as well, if you had the solar on a good FIT rate, then the GO on top is just icing on the cake, unstoppable combo. Can see FIT payments are £1.1K coupled with cheap energy, some months must be negative energy usage.
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It's a 4k array (16 x 250) into a 3k inverter. Unfortunately i'm on the original 25p FIT. I had solar on my previous house @ the 50p rate, this house had the solar installed just after the FIT rate was cut.

The roof faces south and I live in the south. This year has been better than last year. If the final 3 months match last year i'll top 4600 generated. 2020 I did 4620.3.

2021


2022



Electric wise i'm in profit each year and assuming the sun shines and the FIT stays alive i'll be like this for the next 15 years. Unfortunately heating oil has got very expensive. If that comes down to a normal level it will help. My water DD has been reduced recently so that's a bonus.
 
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Ah very nice, yeah your figures make more sense if your system is actually 4kwp, even if the top end is clipped a bit your lower end will be better more consistently.

Getting 25p/kwh for generation whilst paying only 7.5p/kwh is a huge win, especially considering FIT is usually deemed I think no matter how much you export, and SEG on Octopus Go is only 4.1p/kwh on actual export.
 
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