Being a microgeneration site for the grid

AE-NMidlands
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Re: Being a microgeneration site for the grid

#61

Post by AE-NMidlands »

Joeboy wrote: Sun Jul 28, 2024 9:59 am Just a thought, you have 3.68kW G98 in place? With forced discharge you should be able to.export.the FIT system momentary production plus the 3.68kW. I am as you know very new to this export.stuff.but that's how it seems to work?
You can test that theory anytime.
I think I am seeing less than full (G98 authorised) export sometimes when the battery has been told to give it and there is the pv production available too. My surmise is that grid voltage is high and the inverter throttles back to prevent the mains getting to an even higher voltage.
Which, if correct, is frustrating. Maybe the DNO should be required to compensate me for lost income! I can't imagine how that could be calculated practically for everybody though.
A
2.0 kW/4.62 MWhr pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWhr batt
30 solar thermal tubes, 2MWhr pa in Stockport, plus Congleton and Kinlochbervie Hydros,
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Joeboy
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Re: Being a microgeneration site for the grid

#62

Post by Joeboy »

AE-NMidlands wrote: Sun Jul 28, 2024 11:48 am
Joeboy wrote: Sun Jul 28, 2024 9:59 am Just a thought, you have 3.68kW G98 in place? With forced discharge you should be able to.export.the FIT system momentary production plus the 3.68kW. I am as you know very new to this export.stuff.but that's how it seems to work?
You can test that theory anytime.
I think I am seeing less than full (G98 authorised) export sometimes when the battery has been told to give it and there is the pv production available too. My surmise is that grid voltage is high and the inverter throttles back to prevent the mains getting to an even higher voltage.
Which, if correct, is frustrating. Maybe the DNO should be required to compensate me for lost income! I can't imagine how that could be calculated practically for everybody though.
A
Mine varies too, home demand I assume? There is also the read time of the hybrid inverter it's not updated more than every few minutes so can't always be true to momentary export.
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Joeboy
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Re: Being a microgeneration site for the grid

#63

Post by Joeboy »

The meter info has now shown up on an export box within the Octopus account. That was 5 days from going live. No graphs yet but I'm sure they'll be along soon. :)

Over the last 5 days it's been a consistent £4 per day into the VB, which is excellent considering I've made no actual physical equipment changes. All just software. I was very much a fencesitter on the export side of things, indifferent actually.

I am now very much a fan of those extra panels being able to.work for the greater good when I don't need them rather than being shutdown by the solar controller.

The Winter cash accruing for storage heaters and less logs burned is a great example of the immediate and future benefits of the switch to export and using the existing equipment in a smarter fashion. :twisted:
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Joeboy
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Re: Being a microgeneration site for the grid

#64

Post by Joeboy »

Export PB yesterday 44kWh! :D

Generated £70 at Ripple across the weirdness.
Generated £41 (before costs) over 7 days on export.
Generated £38 off of home PV generation.

£149 generated. :twisted:

£38 EV, HWT & stack charging cost. £111 into the various VB's, not bad. :xl:

Image

Not sure how this count tallies up though? Guessing it will take a while to settle out.

Image

First accurate graphed data in from 31st July.

Image
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
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Joeboy
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Re: Being a microgeneration site for the grid

#65

Post by Joeboy »

Not complaining, yet we've got quite a discrepancy between the hybrid inverter reading
Image

And the Octopus export reading.
Image
:D
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
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Fintray
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Re: Being a microgeneration site for the grid

#66

Post by Fintray »

Joeboy wrote: Fri Aug 02, 2024 11:22 am Not complaining, yet we've got quite a discrepancy between the hybrid inverter reading
Image

And the Octopus export reading.
Image
:D
But haven't you got more than the hybrid inverter exporting, SolarEdge?
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Joeboy
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Re: Being a microgeneration site for the grid

#67

Post by Joeboy »

Fintray wrote: Fri Aug 02, 2024 1:34 pm
Joeboy wrote: Fri Aug 02, 2024 11:22 am Not complaining, yet we've got quite a discrepancy between the hybrid inverter reading
Image

And the Octopus export reading.
Image
:D
But haven't you got more than the hybrid inverter exporting, SolarEdge?
Yes, although I thought that count was also captured by the hybrid. It certainly seemed to be on the momentary count but not it appears on the accumulated count? Will know more when we get paid! Is that a specific date for all of us or start contract depending?
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
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nowty
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Re: Being a microgeneration site for the grid

#68

Post by nowty »

Joeboy wrote: Fri Aug 02, 2024 2:39 pm
Fintray wrote: Fri Aug 02, 2024 1:34 pm
Joeboy wrote: Fri Aug 02, 2024 11:22 am Not complaining, yet we've got quite a discrepancy between the hybrid inverter reading
Image

And the Octopus export reading.
Image
:D
But haven't you got more than the hybrid inverter exporting, SolarEdge?
Yes, although I thought that count was also captured by the hybrid. It certainly seemed to be on the momentary count but not it appears on the accumulated count? Will know more when we get paid! Is that a specific date for all of us or start contract depending?
You will get it tagged onto your normal monthly bill.
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Fintray
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Re: Being a microgeneration site for the grid

#69

Post by Fintray »

Joeboy wrote: Fri Aug 02, 2024 2:39 pm Is that a specific date for all of us or start contract depending?
Date will be 12 months from the start date, mine ends 23/10/24.
3.87kWp PV
10.24kWp PV SolarEdge system
Tesla Powerwall 2
100 x 47mm Navitron tubes (still being installed!) Now likely to be removed for more PV.
MK2 PV router DHW diverter
Morso 5kW WBS
Vaillant AroTherm 10kW ASHP
Nissan Leaf
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Joeboy
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Re: Being a microgeneration site for the grid

#70

Post by Joeboy »

Fintray wrote: Fri Aug 02, 2024 3:27 pm
Joeboy wrote: Fri Aug 02, 2024 2:39 pm Is that a specific date for all of us or start contract depending?
Date will be 12 months from the start date, mine ends 23/10/24.
Thanks Ian & Nowty, much appreciated!
Similar outcome for yesterday. I'll keep an eye on it once home. Either way I'm happy to be in this. They (Octopus, dno & BG).really did well.to make this easy for us. Highlighted by the majority taking place while on holiday. :D

Image

Image
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
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