Solar panel production figures

28.32 generated and 28.1 exported.

PUGSS said:
Now is it worth exporting from the battery this evening or not what do people do I took the battery down last night and then put 15Kwh off peak in is it worth
Click to expand...

I'm on Flux, I always charge over night (about 15p per kWh), and once battery is charged excess is exported (around 15p), and then I always export down to 45% SOC between 16:00 and 19:00 peak rate at about 26p. It all adds up over time.
 
Ron-ski said:
28.32 generated and 28.1 exported.



I'm on Flux, I always charge over night (about 15p per kWh), and once battery is charged excess is exported (around 15p), and then I always export down to 45% SOC between 16:00 and 19:00 peak rate at about 26p. It all adds up over time.
Click to expand...
Yep i can see the sense in in charging but taking today It cost me about £1.20 off peak to fill it then I exported 15.40Kwh that gives me back about £2.25 so profit £1.05 so if you did that each day and matched what you imported £383.00 a year not bad. Do the summer months average it out so you get close to this or more or is it just winter when you are going to fall short on the solar coming in so do it winter but not summer. think I will leave it tonight as weather is given a good day Tuesday see the numbers for a day like that. count the penny's they add up
 
PUGSS said:
Do the summer months average it out so you get close to this or more or is it just winter when you are going to fall short on the solar coming in so do it winter but not summer.
Click to expand...
I do it all year round, I do reduce my overnight charge in the summer, aim to be 80% SOC at 5am, I set the charge to 100% at the start of September as it was so bad. Often I don't have much to export in the winter for obvious reasons, but will likely do better this winter, more solar coming online soon, and my Chia farm will be turned off around the end of the month, so will use a lot less electric (about 6 kWh a day less roughly). It is the summer months where it really pays, and that builds up a good reserve for the winter. Changing to a different tariff would probably make a difference in the winter but I can't be bothered.
 
Ron-ski said:
I do it all year round, I do reduce my overnight charge in the summer, aim to be 80% SOC at 5am, I set the charge to 100% at the start of September as it was so bad. Often I don't have much to export in the winter for obvious reasons, but will likely do better this winter, more solar coming online soon, and my Chia farm will be turned off around the end of the month, so will use a lot less electric (about 6 kWh a day less roughly). It is the summer months where it really pays, and that builds up a good reserve for the winter. Changing to a different tariff would probably make a difference in the winter but I can't be bothered.
Click to expand...
I get what you are saying plus the battery's are there use them My two are on a cold side of the house under a car port as well so charging over night will keep a nice temp in them when the snow stars falling :cry: :cry: thanks
 
Ron-ski said:
Can't say I've heard that one, if not in use longterm they should be kept about 30% SOC, otherwise just use them. Mine should still have 80% capacity if cycled once day after about 16 years.
Click to expand...
Probably not worded well - speaking in relation to the Givenergy batteries, it's better to have them cycled than sat underused ( keeps the capacity in check). No point having unlimited cycling if they degrade poorly from a Calendar life point of view.
 
Cracking day for this time of year with the house making 27.30Kwh and 24.20Kwh of that going for export.
The workshop made 9.60Kwh and exported 5Kwh from there
We are now doing a nightly discharge taking the House battery's down to
20% to 40% each night and taking up a cheap rate refill to 100% later so
somewhere between about 10Kwh to 15Kwh

House System is split East West
down in not so sunny Devon.
East 8 x 420w panels 45 deg pitch
West 10 x 420w panels 45 deg pitch
Givenergy Gen3 5kwh hybrid
2 x 9.5 battery's

Workshop system is South/East
2440w of panels two 720w strings
one 1000w string
Hybrid inverter with 4x 12v 100Amp
Battery's
Plus grid tie inverter as well
 
You must log in or register to reply here.
Back
Top Bottom