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Re: Outgoing Octopus
Posted: Fri Jun 28, 2024 11:30 am
by nowty
My declared target of 2MWh export this month is in jeopardy.
I have 100 kWh to go with only 2 and a half days left, mostly grey skies here today and Sunday looks pants too.
I shall have to be more aggressive with my off peak charging, time to crank up the supplementary battery charger/exporter which I only use in winter.
Re: Outgoing Octopus
Posted: Mon Jul 01, 2024 4:44 pm
by nowty
Saturday 29th June nailed my 2 MWh export target by itself with a new daily record of 104 kWh exported.
So thats a net export income of £247 for a single month.
Re: Outgoing Octopus
Posted: Mon Jul 01, 2024 4:56 pm
by AE-NMidlands
nowty wrote: ↑Mon Jul 01, 2024 4:44 pm
Saturday 29th June nailed my 2 MWh export target by itself with a new daily record of 104 kWh exported.
So thats a net export income of £247 for a single month.
Ssshhhhh! You will give the new Chancellor ideas...
Re: Outgoing Octopus
Posted: Thu Jul 04, 2024 11:53 am
by nowty
Another hard day at Nowty Towers and I'm not missing having the deemed export.
Octopus outgoing income over same timeframe net of import costs are about £500.
Deemed export over the same timeframe would have been about £30.
Re: Outgoing Octopus
Posted: Thu Jul 04, 2024 12:50 pm
by AGT
I forgot to submit my FIT for end June
Re: Outgoing Octopus
Posted: Tue Jul 16, 2024 4:12 pm
by nowty
Weather forecast down here on the south coast for the next 3 days is looking up after the last few miserable days here.
I think I'm going to have a crack at beating my continuous export record which currently stands at a continuous 44hrs with a minimum export of 2kW. I wonder if I can make 3 full calendar days, so 72 hours and lets have a stretch target minimum export of 3kW and obviously no help from the grid during the continuous export.
The EV is a bit low so I shall scam some extra cheap hours from the octopus this evening so I can start at midnight with a full home battery. I am going to start off at midnight tonight with a minimum of 3kW export but I reserve the right to drop it to 2kW if the weather does not play ball.
If the weather forecast is accurate I should generate 60 to 80 kWh each day and I will have a 60kWh battery reserve to start with. It looks ok on the maths but that assumes I'm not using any energy in the house which of course I will. SWMBO is at daughters so I at least have a chance.
Re: Outgoing Octopus
Posted: Tue Jul 16, 2024 9:57 pm
by Joeboy
nowty wrote: ↑Tue Jul 16, 2024 4:12 pm
Weather forecast down here on the south coast for the next 3 days is looking up after the last few miserable days here.
I think I'm going to have a crack at beating my continuous export record which currently stands at a continuous 44hrs with a minimum export of 2kW. I wonder if I can make 3 full calendar days, so 72 hours and lets have a stretch target minimum export of 3kW and obviously no help from the grid during the continuous export.
The EV is a bit low so I shall scam some extra cheap hours from the octopus this evening so I can start at midnight with a full home battery. I am going to start off at midnight tonight with a minimum of 3kW export but I reserve the right to drop it to 2kW if the weather does not play ball.
If the weather forecast is accurate I should generate 60 to 80 kWh each day and I will have a 60kWh battery reserve to start with. It looks ok on the maths but that assumes I'm not using any energy in the house which of course I will. SWMBO is at daughters so I at least have a chance.
Good fortune to you in the endeavour. SWMBO was interrogating me today on the How's and when's of it all. I made up most of it. I think k it will be
.
Re: Outgoing Octopus
Posted: Wed Jul 17, 2024 11:21 am
by nowty
First morning in the 72 hour continuous exportathon at my stretch target of 3kW min export. Woke up early to find total cloud cover.
Not a good start but the cloud has now cleared and the battery is now net charging on the solar.
I used about 50% of the battery overnight since midnight but the real test will be tonight because I don't know if I will get the battery back to full and then there is the hours before midnight as well as after which the battery must able to support.
I've done it before at 2kW but not 3kW, its a bit like Weetabix.
Re: Outgoing Octopus
Posted: Wed Jul 17, 2024 12:01 pm
by Joeboy
nowty wrote: ↑Wed Jul 17, 2024 11:21 am
First morning in the 72 hour continuous exportathon at my stretch target of 3kW min export. Woke up early to find total cloud cover.
Not a good start but the cloud has now cleared and the battery is now net charging on the solar.
I used about 50% of the battery overnight since midnight but the real test will be tonight because I don't know if I will get the battery back to full and then there is the hours before midnight as well as after which the battery must able to support.
I've done it before at 2kW but not 3kW, its a bit like Weetabix.
Is the aim here a system test/stretch and 72×3×15p less any overnight costs?
Re: Outgoing Octopus
Posted: Wed Jul 17, 2024 1:58 pm
by nowty
Joeboy wrote: ↑Wed Jul 17, 2024 12:01 pm
Is the aim here a system test/stretch and 72×3×15p less any overnight costs?
There will be no overnight costs, this is to see if I can export for 3 days (and nights) at 3kW without interruption or any grid support and still power my house. I could make more money by exporting at higher export rates in the day and charge overnight on the cheap slot.
But this is a personal record stretch test of my system and as an aside, I want to show just how far solar farms and batteries can power the grid. We can all do the maths theoretically but doing it for real is something else.
.