Rosie - Grid Support

[Brucey]

What is your battery voltage? Maybe they are fully charged?

[Groton Vermont]

Battery was at 22% SOC, not fully charged at all and the Barcelona was in Bulk, which you would expect.

[Groton Vermont]

I have suggested a "Generator Support" Mode to use battery power to assist running loads that exceed the generators' output capability but I'm told that's a whole new  bunch of code work so don't expect it any time soon.

I just would like to say that I believe a "GENERATOR SUPPORT" Mode would be a really great thing to add and for offgridders like me, it would be a game changer. I don't know any other inverter that has this. It would effectively allow any sized generator to be utilized, even just a 2kW unit. It would power loads and charge the batteries all at once (I assume).

If they already have the Grid Support code, to add Generator Support shouldn't be a great issue I'd have thought (I am an embedded systems programmer).

My 2p worth

[aaapilot]

I have suggested a "Generator Support" Mode to use battery power to assist running loads that exceed the generators' output capability but I'm told that's a whole new  bunch of code work so don't expect it any time soon.

I just would like to say that I believe a "GENERATOR SUPPORT" Mode would be a really great thing to add and for offgridders like me, it would be a game changer. I don't know any other inverter that has this. It would effectively allow any sized generator to be utilized, even just a 2kW unit. It would power loads and charge the batteries all at once (I assume).

If they already have the Grid Support code, to add Generator Support shouldn't be a great issue I'd have thought (I am an embedded systems programmer).

My 2p worth

You CAN power your loads and charge the batteries at the same time, done it on many occasions, just you can't have AUTOMATIC generator control, have to do it manually.  You just can't do it in Generator mode.  The Generator mode provided wider parameters for voltage, frequency, etc., but a descent generator shouldn't have any problems with tighter numbers.  Just toggle between grid and gen to see the parameters it will allow. I have utility power connected, but don't power my loads with it very much, use batteries mostly and charge them daily with a Hawkes Bay Controller. I run my AC IN thru a ON-OFF-ON switch, up for utility and down for generator input.  On a cloudy day, I either connect my Honda EU2000 or Honda EU3000 gen to the outside plug, throw my switch to the gen position, and fire it up.  Just adjust the Breaker size down to fit the generator, as Wizbandit said, and you are good.  I do this on a monthly basis just to exercise the generators and to keep the process fresh in my mind if really needed.  Note my generators are 120V, but the Rosie handles it w/no issues.

Dave

[Wizbandit]

"Charge" report is busted in that menu, opps...

Hi, thank you for the reply.

Gen is 6kW so breaker set to 23A

Generator Status:

State Running 0:02:28
Start Manual
Stop No Reason
239V 60.0Hz
Input 2.4 kW
Charge  0 W
Load  2.3 kW

So it is passing through but not charging?

Jim

[Groton Vermont]

You CAN power your loads and charge the batteries at the same time, done it on many occasions, just you can't have AUTOMATIC generator control, have to do it manually.

Hi Dave, Yes, I understand this. I am refering to having a load sharing between the generator and the inverter. If you had a 2kW generator and suddenly a 4Kw water heater switched on, I think the generator would kick off with an overload. Where as if the inverter could pick up the slack so the generator never exceeds the maximum load. Is that possible? So also, when there is just 200mA Load the generator could still run at full load, the difference going to charge the batteries.
Is this even possible?

Note, even with the "0 Charge" not working, the generator was not charging the batteries but was powering the loads. Does that mean Rosie didn't like the generator so did not allow battery charging but did allow load powering or is there still something else going on?

Thanks all,

Jim