Outgoing Octopus

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Joeboy
Posts: 8085
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: Outgoing Octopus

#171

Post by Joeboy »

Managed 12kWh today. I'm impressed with seeing the power flow to grid alter automatically as I ramp up or down storage heaters & HWT at home. This actually feels like the missing link.

8-)
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
Posts: 8085
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: Outgoing Octopus

#172

Post by Joeboy »

My Nowty inspired test figures to date.

17/07 13.1kWh
18/07 11.6kWh
19/07 19.3kWh
20/07 12.0kWh

56kWh sent gridward so far. I've set discharge at 09.00 to 16.00 hrs today and if all goes well I'll leave it there for a while. I'm pleasantly surprised at the simplicity of this. :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
Low energy bulbs
Veg patches & fruit trees
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nowty
Posts: 5778
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: Outgoing Octopus

#173

Post by nowty »

Yesterday was a very poor solar day here at Nowty Towers, but even on poor solar days if you can export only half of what you import the energy is free or even negative. :mrgreen:

Import cost on IOG cheapslot 7p/kWh = £1.90

Export income on Fixed Outgoing 15p/kWh = £2.75

Image


Today its back to normal summer service and the next week looks excellent. :xx:

Image
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 26MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
AE-NMidlands
Posts: 2024
Joined: Wed Jun 02, 2021 6:10 pm

Re: Outgoing Octopus

#174

Post by AE-NMidlands »

I love it too...
Image
I turn the battery discharge rate down to make sure it isn't flat by 7 pm, otherwise just let it go... It's nice when the pv tops it up and exports at full bore anyway!
2.0 kW/4.62 MWh pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWh batt
30 solar thermal tubes, 2MWh pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!
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nowty
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Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: Outgoing Octopus

#175

Post by nowty »

Another hard month on the Outgoing Octopus. ;)
Image
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 26MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
User avatar
nowty
Posts: 5778
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: Outgoing Octopus

#176

Post by nowty »

Its wall to wall sunshine for the next two days so I thought I would try for a 24 hour PB of export. Could try it either day but its a couple of degrees cooler today and tomorrow is a day later in the year so slightly lower sun angle as we head away from the summer solstice. So going for it today, my PB export in a single calendar day is 104 kWh which I have managed twice.

I started at midnight with a setting of 4.5kW export rate and I drained two thirds of the battery stack before 10am.

I'm hoping to break 110kWh in a single day. :xx:
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 26MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
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Joeboy
Posts: 8085
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: Outgoing Octopus

#177

Post by Joeboy »

nowty wrote: Sun Jul 28, 2024 11:45 am Its wall to wall sunshine for the next two days so I thought I would try for a 24 hour PB of export. Could try it either day but its a couple of degrees cooler today and tomorrow is a day later in the year so slightly lower sun angle as we head away from the summer solstice. So going for it today, my PB export in a single calendar day is 104 kWh which I have managed twice.

I started at midnight with a setting of 4.5kW export rate and I drained two thirds of the battery stack before 10am.

I'm hoping to break 110kWh in a single day. :xx:
Is there a coincidental street party to be powered? :praise:

I am aiming for a less battery stessing day today. More akin to hopefully an average day outwith Dec to Feb deadband. 30kWh per day average across the year would be great for us.

£1,642 before costs, all the best in today's adventure Nowty.
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
User avatar
nowty
Posts: 5778
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: Outgoing Octopus

#178

Post by nowty »

So far since the beginning of the year I have averaged 33 kWh per day export, winter is tough though as I need the batteries to run the heatpumps for the heating.

Today at around solar midday I'm on 61 kWh export. :mrgreen:

That means I need another 44 kWh export for a PB but I only have 11 hours of day left. :?

Image
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 26MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
User avatar
Joeboy
Posts: 8085
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: Outgoing Octopus

#179

Post by Joeboy »

nowty wrote: Sun Jul 28, 2024 1:48 pm So far since the beginning of the year I have averaged 33 kWh per day export, winter is tough though as I need the batteries to run the heatpumps for the heating.

Today at around solar midday I'm on 61 kWh export. :mrgreen:

That means I need another 44 kWh export for a PB but I only have 11 hours of day left. :?

Image
I'm sure all the PB's will fall in May 25? We'll stick to sub 25kW overnight on the 100A fuse for Winter. There will have to be staggered switching to hit it all without risk of blowing the main fuse. Staggering the SH's last Winter was effective

4kW stack charge
3kW HWT
5kW EV
2kW washing machine
2kW dishwasher
12kW storage heaters

I reckon I'll be down to 10kW export in Winter months but should catch up in the good months. Last thing really is to see the reliability of the stack soc and our charging limit. Coupled with what I can only call bounce as the soc readjusts once demand is absent. Last night we went from 20% to 90% soc which is close enough allowing for Pylontechs capacity degradation. Certainly without the sun to boost the pack we won't be able to empty it every day as we'd like.

I wonder if there is separate 2kW say 240VAC/48VDC charger I could run in tandem across IO window? This may be a dangerous thought....
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
User avatar
nowty
Posts: 5778
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: Outgoing Octopus

#180

Post by nowty »

Joeboy wrote: Sun Jul 28, 2024 2:49 pm I wonder if there is separate 2kW say 240VAC/48VDC charger I could run in tandem across IO window? This may be a dangerous thought....
Some on here use Eltek flat pack chargers, search "Eltek" on the forum, you will find some threads on them.
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 26MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
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