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Instant powerwall
#51
Yep, indoors, it is a watercooled marine generator, designed for indoor (engine-room) use.
Exhaust is piped through the wall to the open air.

It is a Farymann 1 cilinder diesel  8Kva 220V 50Hz watercooled engine and generator head. Power is clean enough for all appliances and electronics, no problems there.

I use the generator as a charger in normal use, the chargers (3x2000W only for the generator) are happy with the power produced by the generator. The chargers are controlled by the BMS to prevent overcharging.
I have installed a switch to connect the generator to my house loads, this only for backup in case of inverter failure.

 

Inverter and house installation are 3-Phase, my diy water-water heatpump heating needs 3Ph, so on generator backup power the the heatpump will not work.

I use my system off-grid, for now with manual generator start and stop.... working on a system for some automation on this.
Only my older solar system with diy tracker is still grid-tie (with some gouverment sponsoring Wink )...
I am planning to use/test my system for a full year before going 100% off grid.

In the winter there is no way to be off grid without some power generaton besides solar... i plan to run my generator for a few hours a day to charge the batterys and at the same time generate hot water to store in my 1000L water buffer tank, it takes care of heating and hot water.
Extra heating is done with heatpump and pallet stove (also connected to the buffer tank.)

Now working on a system to set the daily generator run-time (soc% battery) in function of the next day wheater forecast...
Lots of coding to do ... will post updates here. Smile
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#52
(09-21-2017, 05:50 PM)wim Wrote: Yep, indoors, it is a watercooled marine generator, designed for indoor (engine-room) use.
Exhaust is piped through the wall to the open air.

It is a Farymann 1 cilinder diesel  8Kva 220V 50Hz watercooled engine and generator head. Power is clean enough for all appliances and electronics, no problems there.

I use the generator as a charger in normal use, the chargers (3x2000W only for the generator) are happy with the power produced by the generator. The chargers are controlled by the BMS to prevent overcharging.
I have installed a switch to connect the generator to my house loads, this only for backup in case of inverter failure.

 

Inverter and house installation are 3-Phase, my diy water-water heatpump heating needs 3Ph, so on generator backup power the the heatpump will not work.

I use my system off-grid, for now with manual generator start and stop.... working on a system for some automation on this.
Only my older solar system with diy tracker is still grid-tie (with some gouverment sponsoring Wink )...
I am planning to use/test my system for a full year before going 100% off grid.

In the winter there is no way to be off grid without some power generaton besides solar... i plan to run my generator for a few hours a day to charge the batterys and at the same time generate hot water to store in my 1000L water buffer tank, it takes care of heating and hot water.
Extra heating is done with heatpump and pallet stove (also connected to the buffer tank.)

Now working on a system to set the daily generator run-time (soc% battery) in function of the next day wheater forecast...
Lots of coding to do ... will post updates here. Smile

Impressive, I'll keep following you. 

I'll take it one step at a time. And I hope I'll get there one day.

Regards,

Ivo
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#53
Wim,

since you use this setup purely offgrid, is there any form of regulation, (electricity approval, fire assurance, or any other) involved, or is this a basement project off the records?

since also Belgium and playing with the idea (not yet made up to grid-tie or not (regulated or not :p)) for a while now, but i can't seem to get any straight answers from anyone (let alone the complete denial involved when you start talking)

i'm guessing you are doing it my way (the far in the backyard, out of sight way)

good luck on the project Smile
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#54
I still have a grid connection... ( for my first grid-tie, older solar system and backup for the next year or so ) therfore a electrical aproval is still needed.
As a certified electrician, i did the work myselve. Smile

Important is to have decent transfer switches, my off-grid inverter is never connected to the house loads at te same time as the grid.
All the rest need to be as regulated.
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#55
(09-21-2017, 09:38 PM)Bert Wrote: Wim,

since you use this setup purely offgrid, is there any form of regulation, (electricity approval, fire assurance, or any other) involved, or is this a basement project off the records?

since also Belgium and playing with the idea (not yet made up to grid-tie or not (regulated or not :p)) for a while now, but i can't seem to get any straight answers from anyone (let alone the complete denial involved when you start talking)

i'm guessing you are doing it my way (the far in the backyard, out of sight way)

good luck on the projecSmile

I have also been wondering about the official side of things. What about fire Insurance? What about the technical check on the DC side. Is there a need to have like a certified body control the entire setup? I think if you want the fire Insurance to go ahead with your setup, they'll need some kind of certificate that all is technicaly ok.

Anyone else here knowing anything about this?

I plan on going off grid in time caus I think it's a disgrace that I'm still paying around 300€ a year for not using one kWh of electricity... So basicaly 300€ a year just to use the grid
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#56
(09-22-2017, 10:15 AM)Ivo Staelens Wrote:
(09-21-2017, 09:38 PM)Bert Wrote: Wim,

since you use this setup purely offgrid, is there any form of regulation, (electricity approval, fire assurance, or any other) involved, or is this a basement project off the records?

since also Belgium and playing with the idea (not yet made up to grid-tie or not (regulated or not :p)) for a while now, but i can't seem to get any straight answers from anyone (let alone the complete denial involved when you start talking)

i'm guessing you are doing it my way (the far in the backyard, out of sight way)

good luck on the projecSmile

I have also been wondering about the official side of things. What about fire Insurance? What about the technical check on the DC side. Is there a need to have like a certified body control the entire setup? I think if you want the fire Insurance to go ahead with your setup, they'll need some kind of certificate that all is technicaly ok.

Anyone else here knowing anything about this?

I plan on going off grid in time caus I think it's a disgrace that I'm still paying around 300€ a year for not using one kWh of electricity... So basicaly 300€ a year just to use the grid


Maybe you shoud start a new thread on this topic ?

220V part needs to be certified, as demanded by the electricity compagny and Insurance.
DC part is of no concern to the electricity compagny if off-grid,   for Insurance ... well for sure your Insurance cost will rise  (solar panels and battery's )
I did not yet talked to my Insurance guy, but will and, advise everyone to do the same.
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