That 20mS changeover time for Victron is just the time constant for a 50Hz supply ie. the one cycle behind the mains that any UPS would have to use as a reference to follow the mains and not be out of phase with the supply when it cuts in to export.
Solar Sheds & Other Non-t6 Solar Projects - How We Done It -
- Thread starter Dellmassive
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Yeah, I guess the important thing is that it’s short enough that even sensitive stuff like computers etc transition seamlessly.
Doh!!! Why didn't I think of insulating the batteries like this????
It's not so much a super fast reaction so much as the shortest the gap can possibly be as the incoming supply frequency effectively calls the tune which in this case is a 50Hz sinewave and anything else coming into this has to follow by at least the one cycle (0.02s) anything at a different frequency or out of phase will cause major problems.
Fyi... This is the G98/G99 spec/standards that the grid tied inverter must confirm too.
This is from the Sunsynk, but all with the same type Approval need to comply.(Including plug in types like the EcoFlow or DJI)
You can see the parameters are very Strict re the frequency and upper and lower voltage limits.
These are adjustable under a custom profile, but locked when set in UK G98 mode.
Some interesting reading and shows how serious the G98 standard is.
....
We're on EHU here in Bath so electric blanket and 2kW fan heater lifesavers however just turned the solar on by way of an experiment and banked 8Ah of electric in just over 20 minutes putting us at 200Ah.
In reality it's just the fridge and lights drawing power but a neighbouring T6.1 here also on EHU was running his diesel heater this morning and then running his engine for at least 30minutes either for the AC to clear the fug or in a misguided attempt to charge the starter battery WTF, must haved his own tanker?
In reality it's just the fridge and lights drawing power but a neighbouring T6.1 here also on EHU was running his diesel heater this morning and then running his engine for at least 30minutes either for the AC to clear the fug or in a misguided attempt to charge the starter battery WTF, must haved his own tanker?
This is interesting. Any observations ?
I think it is just what they do, being linked by Wi-Fi to Ecoflow App.
Up to now each would need its own spur, and I wonder if grid output would be limited to 800w in total.
You do have sockets on the back of the units if (for example) you wanted to run your washer and dryer.
So, the solar inputs are limited to one unit and that outputs 800w to the house grid. If the house grid doesn't need a portion, it goes to the other units. The major loads (washer/dryer etc) are plugged into the back of the assigned unit and powered through it.
All balanced and controlled by the microinverter in the first unit and the app.
Is that the basic idea ?
All balanced and controlled by the microinverter in the first unit and the app.
Is that the basic idea ?
I'm watching this closely, it's a very interesting thread. I have a big fibre cement sheet shed roof (25mx12m) which seems to be in the sun most of the day on sunny days, but things seem to be changing rapidly and I don't want to get lumbered with yesterday's tech, anything I spend will need to pay for itself in money, I'm not spending money to look virtuous.
You should be powering the rest of the Shire with a roof that size @Dellmassive is powering 60% of Romford with just 12 panels.
You should be powering the rest of the Shire with a roof that size @Dellmassive is powering 60% of Romford with just 12 panels.
If it pays, I will. Gladly.
Portable might be the way to go.....
Not saying you're moving or anything, but easier to sell it on if new stuff comes out.
For me, being able to use the battery units to power stuff, including the Shepherds Hut in times of power cuts, gives me the versatility I want.....
More learning....
My Smart Meter is showing a small 'export'
However I can't get payment as plug in solar needs MCS certification. If you plug into the mains, it won't pass. If you get an MCS engineer to hardwire as per current UK regs, then you should get an MCS certificate and Building Control Completion. You can then apply to your Enrrgy Supplier who will notify the DNO and get the MPAN Export number.
It's mooted that come true Balcony Solar plug-in coming soon to the UK, the regs will change and the export process will become smoother.
Til then, batteries seem the only thing for excess solar generation or just let it go into the grid for free
My Smart Meter is showing a small 'export'
However I can't get payment as plug in solar needs MCS certification. If you plug into the mains, it won't pass. If you get an MCS engineer to hardwire as per current UK regs, then you should get an MCS certificate and Building Control Completion. You can then apply to your Enrrgy Supplier who will notify the DNO and get the MPAN Export number.
It's mooted that come true Balcony Solar plug-in coming soon to the UK, the regs will change and the export process will become smoother.
Til then, batteries seem the only thing for excess solar generation or just let it go into the grid for free
Hope so.
It was so much nicer when you could watch your dial meter turning backwards when the sun shone.
Most of the guys we're fully fitted solar on here have an MCS certificate... So I could apply for the expo mpan with that.
The few of us with self-installs and use octopus managed so those self certification auction to get an m-pan and an official export.... So we now have two virtual smart meters..
The few of us with self-installs and use octopus managed so those self certification auction to get an m-pan and an official export.... So we now have two virtual smart meters..
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