Very nice! Good do you have the generator hooked up?
EG4 new AIO rated 12K output and 18kPV aka "EG4-18Kpv-12LV"
- Thread starter Zapper77
- Start date
No generator hooked up at this time.
Critical load panel here as well but main is empty other than 3 circuits. I receive similarly explained bills where I use for say 1 month Supply charge of 2.08 and Delivery of 8.93 = 11.01 or another Month Supply 7.75 and Delivery 12.68=20.43 Not really fair but pay it as insurance to keep the grid use when needed. Your situation looks like their coming up with ways to comp some of there overhead but if you except it you'd be legal to use or feed back grid and use it as a supplement. It would be great to use the 18kpv to it's full potential with all it's bells and whistles but is still a great inverter even if used just off grid.
Folks, you cannot call Deye and ask them to private label an inverter for you in the USA. that may be limited to SolArk. I believe you can call Solis, Growatt, Luxpower and some others and they will private label you an inverter.
So maybe the forum should have a design your ideal inverter thread. Set the final specs and get people to commit to buying it and doing community support. Savings could be in the thousands.
Let's start: Inverter Output AC 240/120 sizes 8k, 12k and 16k. Parallel up to 3 inverters (equals 200 amps). Built in ATS, generator support, high voltage and low voltage battery support, 4 MPPT's at 20 amps each up to 600 volt DC input. Max PV input equals 36 kW. AC coupled too. Breakers included, wifi and cellular dongle. Included 120 amp or 180 amp battery charger, NEMA 4, convection cooling, floor mount or wall mount, full software support, all other standard certifications and features such as UL1741, CEC compliant and, UL9540 and rapid shutdown.
If there was a commitment to 1,000 units of these, the price landed would come in at probably 3K or less. Sort of like an inverter kickstart.
This kind of project means larger heat sink, MOSFETS, etc. But nothing that is not already being done in the larger 3 phase utility and commercial inverters.
So maybe the forum should have a design your ideal inverter thread. Set the final specs and get people to commit to buying it and doing community support. Savings could be in the thousands.
Let's start: Inverter Output AC 240/120 sizes 8k, 12k and 16k. Parallel up to 3 inverters (equals 200 amps). Built in ATS, generator support, high voltage and low voltage battery support, 4 MPPT's at 20 amps each up to 600 volt DC input. Max PV input equals 36 kW. AC coupled too. Breakers included, wifi and cellular dongle. Included 120 amp or 180 amp battery charger, NEMA 4, convection cooling, floor mount or wall mount, full software support, all other standard certifications and features such as UL1741, CEC compliant and, UL9540 and rapid shutdown.
If there was a commitment to 1,000 units of these, the price landed would come in at probably 3K or less. Sort of like an inverter kickstart.
This kind of project means larger heat sink, MOSFETS, etc. But nothing that is not already being done in the larger 3 phase utility and commercial inverters.
FWIW, if you want to UL it then you need to focus on a single configuration like 16kW to keep the cost manageable. The UL littany is about $100k per inverter all-in (maybe only $80k for UL of subsequent models on the same platform).
Honestly though the EG4 18kPV is close enough for me. What is a much bigger challenge to me is the battery situation. I want a 60kWh single forklift box with integrated everything that is designed to go in a residential garage (ideally without fire sprinklers). I want something that the fire inspectors and the city can't complain about since it is a UL box listed for the application.
Good point
Quattrohead
Solar Wizard
You are going to have to commit to at least 100,000 units to even attempt to talk to manufacturers.
The EG4 18k and Solark 15K and clones already have 98% of all these features covered.
The EG4 18k and Solark 15K and clones already have 98% of all these features covered.
This should read as “some firmware iterations have 98% of these features functional”
DIYrich
Solar Wizard
UL 9540 limits you to 20kWh in a single rack. Doesn't make sense to make a large box for 3 racks that are 3 feet apart.
By rough calculations, you could have a Nema-12 box about 30" wide x 18" deep x 76" high that integrates 60kWh of battery (64 304Ah cells), inverter electronics from an existing design, all the needed circuit breakers, and bypass breakers (actually a panelboard if it had side access) in a separate compartment. If you wanted to make it stackable for battery or inverter there are a few elegant ways to do it while limiting field work.
Sure, it would weigh about 1,500 pounds, but with labor as sparse as it is I would have to think it is worth more than the sum of the parts. This is why Tesla's new Powerwall integrates much more in one package.
I thought there was a path around that for LFP, but there are still some inconsistencies between NFPA and UL. The key as I read it was that it be listed as a single unit and tested in accordance with 9540A.
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rakitejada
Solar Enthusiast
Almost 2 months in and very happy with the results, over 3000kWh in Solar Yield and over 4000KWh of total consumption.
I only have part of the house connected and still not approved to feed the grid so i am losing a lot of kWh daily after the batteries are charged and i have topped up my EVs, once i get approved to feed the grid i wont lose a kWh of power and the Solar production wont be limited, those numbers will go even higher.
And this thing is a beast, look at how much power was being drawed yesterday (with grid assist) and it handled it like it was nothing (well, ignoring those noise of the fans ?)
Love my system
Thanks @Will Prowse and @Gavin Stone for your videos, you were the ones that convinced me early on. Best choice ive made for my home
I only have part of the house connected and still not approved to feed the grid so i am losing a lot of kWh daily after the batteries are charged and i have topped up my EVs, once i get approved to feed the grid i wont lose a kWh of power and the Solar production wont be limited, those numbers will go even higher.
And this thing is a beast, look at how much power was being drawed yesterday (with grid assist) and it handled it like it was nothing (well, ignoring those noise of the fans ?)
Love my system
Thanks @Will Prowse and @Gavin Stone for your videos, you were the ones that convinced me early on. Best choice ive made for my home
rakitejada
Solar Enthusiast
Today i reached 75 days after installing the 18kpv and i’m lucky have round numbers:
75 days
4000kWh Solar Production
5400kWh Consumption through the inverter
Im in love with this thing, doesn’t get old
I still haven’t been able to grid tie, when i finally get that done, production will average much higher because usually the batteries are full by noon and there is a lot wasted energy from 12pm-5pm
I have my neighbors charging their Tesla twice a week at home because its just sad to not have all that energy used.
20 x 460w solar Panels = 9200w
14 x 550w solar Panels = 7700w
16700w total
The max pv input ive seen for more than 3 minutes is 11,000w… thats 34% less than nominal value. Is this normal? Other than cleaning my solar panels with ive already done 1 month ago. Any recommendations to get better results? My panels are pointed perfectly to south and at the proper angle also, so Ive got that covered.
Thank you all
75 days
4000kWh Solar Production
5400kWh Consumption through the inverter
Im in love with this thing, doesn’t get old
I still haven’t been able to grid tie, when i finally get that done, production will average much higher because usually the batteries are full by noon and there is a lot wasted energy from 12pm-5pm
I have my neighbors charging their Tesla twice a week at home because its just sad to not have all that energy used.
20 x 460w solar Panels = 9200w
14 x 550w solar Panels = 7700w
16700w total
The max pv input ive seen for more than 3 minutes is 11,000w… thats 34% less than nominal value. Is this normal? Other than cleaning my solar panels with ive already done 1 month ago. Any recommendations to get better results? My panels are pointed perfectly to south and at the proper angle also, so Ive got that covered.
Thank you all
rakitejada
Solar Enthusiast
(18.4483419, -69.9480740)
Santo Domingo, Dominican Republic
460w Peimar mono-crystalline
550w JaSolar mono-crystalline
Oh strange, you should have a bit more output. Are they used panels? How are they wired? How are they connected to the 18K? Can you post your PV data from a sunny day on here?
What current are you seeing on the 460W strings? Should be around 13A at STC. But I am not seeing NOCT. So I would think around 11A:
The 550W should be around 11 at NOTC:
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