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Other inverter options?
#1
Besides the GTIL2, are there any inverters that can use the grid power, battery power and pv power all at the same time seamlessly without having to change settings?
Also allow the battery to charge with the excess pv power loads aren’t using.
Also able to operate at a reasonable battery voltage under 120v, preferably closer to 60v.
And lastly be able to limit its ac power supply to only supply the amount of power the loads are using.

I’ve been looking and can’t find any others. I have found a few but they need batteries with a really high voltage. The GTIL2 can operate between 45-90v.
I guess I’m looking for a grid tie inverter that is not a string inverter. I’m wanting to use a lower battery-operating volts than a string inverter will be able to use.

Imo the GTIL2 (although not a well known brand) has things going for it that are not common features for an inverter to have. I think these things would be appreciated by many more people if the brand was more well known. I myself started this post in pursuit of a better quality brand inverter (I haven't had problems with GTIL2) that have these features.

Most people can’t be fully offgrid without a costly offgrid setup that most can’t afford. Or their area doesn’t allow offgrid. So then grid tie is the option for them so they can still use grid power when needed. But they should still be able to store excess pv power (not used throughout the day) in a battery to be used during the night and early morning. The GTIL2 makes all that possible seamlessly. Also the stored battery power can then be used by an offgrid inverter in case of an emergency.

There has to be other inverters than can do all of this using a low voltage battery like the GTIL2 can do. I’d hate to have to use a 120+v battery.
#2
I'm offgrid and I don't need permission from anyone.   I use automatic transfer switches to feed offgrid power to the house when I have enough battery to turn on the inverter and then back to grid when the battery runs low / inverter turns off.   The limitation with a system like this is that I can't sell any excess back to the power company because I'm not connected to the grid....  but that's OK as my home consumes more than I can make.

I agree that it has taken a bit more than just 'out of the box' to get things setup, run proper wiring, etc...  and I'm not saying this will work for you - but Iwanted to point out that it is indeed possible to be offgrid (even in the city) with some limitations.
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#3
The gtil cant do all of that.. its that you use it wrong and its only ment to be a grid tie system .

What you look for is a hybrid systen. All those can do it butbthry cost aloot more!
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#4
Multiplus ii
#5
(08-24-2020, 06:29 AM)daromer Wrote: The gtil cant do all of that.. its that you use it wrong and its only ment to be a grid tie system .

What you look for is a hybrid systen. All those can do it butbthry cost aloot more!

The GTIL2 can do everything I describe. I am not using it wrong. It can be powered by a battery or by pv direct (without a battery installed) or both at the same time and the grid supplies power at the same time as the battery and pv if the battery and pv together are not enough to fully supply the loads.

(08-24-2020, 05:06 AM)OffGridInTheCity Wrote: I'm offgrid and I don't need permission from anyone.   I use automatic transfer switches to feed offgrid power to the house when I have enough battery to turn on the inverter and then back to grid when the battery runs low / inverter turns off.   The limitation with a system like this is that I can't sell any excess back to the power company because I'm not connected to the grid....  but that's OK as my home consumes more than I can make.

I agree that it has taken a bit more than just 'out of the box' to get things setup, run proper wiring, etc...  and I'm not saying this will work for you - but Iwanted to point out that it is indeed possible to be offgrid (even in the city) with some limitations.
The GTIL2 does not need automatic transfer switches. If there’s pv power it uses that, if there’s not enough pv power it uses batteries and the available pv. If pv and battery isn’t enough to fully supply the loads the Grid power is also used to supply the rest of the power the loads need. However if the grid power is down from a storm etc. then an automatic transfer switch or a manual switch can be used to switch to an offgrid inverter because a grid tie inverter will not work if the grid isn’t working.
#6
Its primary intention is like anygrid-tie inverter to feed everything from the solar to the grid Wink

You can always use stuff in other combinations or to other things. For instance I can use my car for sleaping inside but its not really ment for it Tongue
Example 2: You can use a wrench for banging onto nails as well Smile

Its a normal grit-tie inverter. The only difference between that one and some others is that the "max" push settings is open for the user meanwhile most of them have the closed.

When i say wrong i mean the intention for it. It was built to do 1 thing but people started using it somewhat different.

The GTIL does not make a hybrid solution work seamlessly. You need a hybrid system for that that takes care about both charging and all those things. The GTIL is pretty darn stupid device in that sense and you need to add a lot of things. Not to forget. Its ILLEGAL in most countries Wink
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#7
(08-24-2020, 01:40 PM)daromer Wrote: Its primary intention is like anygrid-tie inverter to feed everything from the solar to the grid Wink

You can always use stuff in other combinations or to other things. For instance I can use my car for sleaping inside but its not really ment for it Tongue
Example 2: You can use a wrench for banging onto nails as well Smile

Its a normal grit-tie inverter. The only difference between that one and some others is that the "max" push settings is open for the user meanwhile most of them have the closed.

When i say wrong i mean the intention for it. It was built to do 1 thing but people started using it somewhat different.
The GTIL2 are meant to be used exactly how I use it. They are grid tie inverters that are meant to be powered by a battery or pv or both
#8
How do you connect both at same time?

As i said there is no magic over the GTIL2 as such. Its just a grid-tie inverter with only one extra function and thats you can controll the current. Thats how every grid tie inverter basically works.


edit: But no i dont think you find a small inverter like the GTIL2 as such. You need to go bigger or more expensive
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#9
(08-24-2020, 01:47 PM)daromer Wrote: How do you connect both at same time?

As i said there is no magic over the GTIL2 as such. Its just a grid-tie inverter with only one extra function and thats you can controll the current. Thats how every grid tie inverter basically works.

The pv is connected to a separate charge controller. The chargecontroller supplies pv power to the inverter for loads. If the loads are not using all of the available pv power then the excess charges batteries.

which other grid tie inverters can be powered by a pv and battery and still allow the grid to supply power to loads all at the same time without transfer switches or changing any settings and without shutting down because the GTIL2 stays running even if loads are over inverters max possible output
#10
Any hybrid systems. I run the MPI10kW as example. I run my whole house, garage, gues house on this inverter through the load port. . This makes it fully offgrid. If not i can switch to run the houses on the grid-port instead and its combined.

On the load port it can do x kW and also let through ykW from the grid. The hybrid systems have advantage of being able to be off grid capable at same time as they are grid- compatbile and tied to the grid. Ie all surplus energy not stored in my battery banks are sent back to the grid and sold instead.

1 unit does this ALL. Smile

There are several others out there that does this like the Victron mentioned earlier.
NOTE! My links supplied in this message may be affiliated with Ebay and by clicking on them you agree on the terms.
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Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 100kWh LiFePo4 | 20kWh 14s 18650 |  66*260W Poly | ABB S3 and S5 Trip breakers
Upcoming: 14S 18650~30kWh


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