diy solar

diy solar

Eg4 inverter future

IMHO ...

It may have a 5-yr warranty, per the user manual ... that doc points to their separate "standard warranty & registration" doc, which you'd have to read pretty thorougly to understand.

You'd then have to couple that info with how they work, wrt support processes and such. This could be found by seeing what their current support methods & processes are on the website. Add to that everyone's support experiences on this forum, both in the past and ongoing.

In the end, and as this is mostly an HF inverter, I'd guess that the best options for keeping this thing up and running are:
1. buy more than one, have one on the shelf ready to swap into the place of a "broken" one. Then attempt to warranty the broken one.
2. have a "pure" testing scenario set up, where a new one lands for "break-in", and a defective one lands for "troubleshooting"
3. be self-supporting (for the most part), and any comms with SS are by email (perhaps by website if their processes get good enough)

If all of the above is in place, you can quickly swap out, test, return any defective inverters, with the least amount of hassle. You can get back up and running, with any of the HF inverters, if you keep spares around, by whatever means possible. A 5-yr warranty isn't meaningful, if the process for exchange/repair traps you into all kinds of grief.

I've been developing this strategy ever since I picked up my first mpp solar HF 24v unit, and I don't think it's much different with anybody else's HF unit. These things are fragile, with not enough guts in them like my Magnum 4024. I also would never hook anything up to the clown, er, cloud, for monitoring. That is full of all kinds of problems, when you attempt to provide your data, security, etc, to the clown, er, cloud.

It will be interesting to see if the HF inverters can ever really replace the LF inverters, but at this point, I've kept my HF inverters at the project stage. I've got too much infrastructure relying on the wonderful capabilities of the LF inverters like magnum, which provides utility-grid class service, even if they now make theirs in Mexico.

Finally, whoever has one ... these things are packed full of electronics, in various collections of boards. I'd be interested in knowing if there is any chance of self-repair. You'd have to open it up and peek inside, if willing to potentially void your warranty (does it have the bad stickers?). Also, hold your AM radio next to it, in various places, and see if any spurious emissions.

Hope this helps ...
 
Last edited:
@SignatureSolarJames @Markus_EG4

Is there a possibility for a remote disconnect / rapid shutdown switch on this one, like what can be done with the 18kwpv?
Already integrated and interesting note that the 12 volt output is now at 1.5 A so it will power the newer Tigo devices, not something that the Solark can do because they are limited to 500 ma output ?
 
The plan should be include batteries from the get go, imo
Even just a single battery will get you through those humps during cloud cover, otherwise I just don't like it. Very hard on the inverter and the equipment attached to it to be cycling on and off so much unless you're in Arizona and can guarantee bright blue skies for 8 hours at a time.
 
Even just a single battery will get you through those humps during cloud cover, otherwise I just don't like it. Very hard on the inverter and the equipment attached to it to be cycling on and off so much unless you're in Arizona and can guarantee bright blue skies for 8 hours at a time.
I'd even be willing to put 4 used 12v car batteries in series as a temporary solution.
 
@Zapper77
Do the pv inputs have fuses inline? Thanks
PV Fuses or breakers at the inverter would be of little use.

If there is a single string on each input, no PV overcurrent protection devices are needed. (A single string on each input is the design target of this inverter)

If there is more than two strings are on each MPPT, fuses or breakers would be needed, but they would have to go before they are combined.

 
Have this in the cart but really don't see any solar panels that make sense to purchase with this unit. Does SS only sell 10 panels at a time? What's a good panel solution to *almost* max the input for 1 inverter?
 
Have this in the cart but really don't see any solar panels that make sense to purchase with this unit. Does SS only sell 10 panels at a time? What's a good panel solution to *almost* max the input for 1 inverter?
A string of 10 or 11 of the Canadian Solar 400w or 390w panels? They seem to reasonably priced to.
 
On the running with just pv it really isn't usefully to be honest. I have done it with my tp6048 but not from by choice. I ran with just grid and pv for a long time before getting a battery.

When the power goes out from the grid it runs on pv but since that only works while the suns up and clouds cause brown outs I can't see it really being useful other than the coolness factor of seeing it do it which wears off fast :)
It’s very useful to some, like me that’s using the PV input for a high voltage battery (~375 VDC). ? Everyone has their own use case and budgetary constraints.
 
@pvgirl

I appreciate the pointers. I did see that running te inverter without a battery itself, is supported.. and that is a great first step in answering my question.

However, I did clarify to say.. "PV only". (ie, no batteries and no AC input from generator or grid)

The two sections you reference clearly shows that I can set "battery" to "no", and operate it. However, as seen in the screenshot from @Zapper77 above, There is this quote:

"The 6000XP can use energy from PV, Grid, or batteries for powering the output. However, not all the sources are required. In an off-grid situation, the inverter can be used with just batteries and solar as the energy source.<br /> The 6000XP can also be used with just battery and grid. This is useful for power backup or load shifting without the expense of the PV modules. In other configurations, the inverter can operate with no batteries and just use PV and Grid. In this configuration the inverter will power from the PV as long as the PV is providing adequate power. If the PV power fall below the demand of the load, the unit will switch to powering completely from the Grid."

When reading that, and seeing phrases like "just battery and solar" or "just battery and grid", or "no batteries, just PV and grid", starts to give the impression that you'd need 2 of the 3 inputs. Specifically, I'm pointing out that they are not making the claim that it can use any single input alone for operation. They specifically mention a combination of 2 inputs.. repeatedly. This is the part that gives me pause. I would think that if it could operate from any one, or multiple inputs.. it'd be a much simpler statement to write than to give multiple examples. ie, "This inverter can work with any single power source, or any combination of power sources".

Does that make sense?

This part is slightly more specific in the manual under the settings:

"PV Grid Off: If the customer wants the system to have Off-Grid functionality without
installing any batteries, please enable PV Grid Off. Please note, in this situation the Off-
Grid energy is supplied by solar and is not stable. We suggest the customer install
battery/batteries to keep the inverter output voltage stable if they want to have Off-Grid
function. (Allows system to access the Off-Grid mode when only solar input is available
without battery storage). Note: It is not recommended to run the system without battery
backup."

It seems to imply that it can run PV only with no battery or grid, and it's suggesting that this configuration is unstable (no sun, no power).
 
@Markus_EG4 Would there be any discount or treade off for the costmers that bought the 6000ex? I know that for the 18k there is.
Considering how fast they discontinued these inverters, I think it would make sense. They obviously knew there were hardware deficiencies and decided to remove them from their lineup.

The 6000 ex issues of dirty power, lights flickering, computer UPS tripping. etc still exist and no resolution has been made with all the firmware updates to date.
 
Back
Top