Ok so my wife andi have just bought a house in Sweden.
We are at a few miles from anyone and we are at the end of the line of a near8kvpower line.
But the line isn't buried and we are right in the middle of the forest. Worse between us and the higher voltage line there is a holiday town that is used in the summertime . But also for Christmas. And a few other festivies.
So if there is a storm a tree gets blown over and since we aren't priority there is a power shortage for 4-5 days.
Same if there is a lot of snow , then it can last a bit longer because access is hard.
The most annoying through is the voltage drops on the line. I used a triphased voltage recorder for 5 days and the voltage is hectic. with 50 volt lows when the pump from the well (3kw triphased pump) or the reversible heating/ AC starts up (4 kw)
.
The old owner was bothered with his computer crashing so he had to invest in a UPS. The oven and electric heating didn't heat much on some occassions. Or in some cases the voltage would go so low that the counter would cut . Now since i haven't seen it myself it might be the transformer who has a cut of when the voltage drops too low.
So here is my plan.
Build a 18650 based powerwall 14S50 to 100p haven't decided yet , can get NCR18650GA for 3.20 /piece for 1400 pieces; but firstgot to install my workshop , mill , lathe and other tools like a spot welder to make 18650 packs,to see what it will use up on a normal day since i work from home.
I also have a 7kva diesel generator (triphased) that i would like to use in case oflack of sun like in winter where we only get 3-4 hours of decent sunlight or simply if i'm using a lot of energy and the packs are low or i consider using up lots of power in a short time.
I'm planning oninstalling 2 to 6kwh solar panels (depending on the consumptiontaht i will mesure)on the roof which is like 90 m straight to the south. Or a solar flower or 2in the garden
And maybe a few bladlesswind turbine (vortex bladless) if the municipality is ok with it and if there is enough wind in the year.
Then i will need to find a way to cope with the voltage issue.
Now i was thinking of coupling a 500 farad ultracap bank to the batteries to solve the issue of sudden current draw but is there an inverter that can allow using on grid and off grid power at the same time to regulate the voltage ?
Can i have on a clowdy day the generator start up if the batteries are to lowand still have the solar panels help charge up?
Having fiddled a bit with ultra caps i was thinking of using a seperate inverter that can cope with large voltage drops and still send out a triphased current but then comes the question of charging and balancing the ultra caps. i can do it with resistors or a few fets and use a programmable li ion chargerbut is there anything out there that is made for this out of the box ?
Is there any system out there that can manage starting a generator ? i guess yes .
So any insights, help advice , links or names would be great.
thanks
We are at a few miles from anyone and we are at the end of the line of a near8kvpower line.
But the line isn't buried and we are right in the middle of the forest. Worse between us and the higher voltage line there is a holiday town that is used in the summertime . But also for Christmas. And a few other festivies.
So if there is a storm a tree gets blown over and since we aren't priority there is a power shortage for 4-5 days.
Same if there is a lot of snow , then it can last a bit longer because access is hard.
The most annoying through is the voltage drops on the line. I used a triphased voltage recorder for 5 days and the voltage is hectic. with 50 volt lows when the pump from the well (3kw triphased pump) or the reversible heating/ AC starts up (4 kw)
.
The old owner was bothered with his computer crashing so he had to invest in a UPS. The oven and electric heating didn't heat much on some occassions. Or in some cases the voltage would go so low that the counter would cut . Now since i haven't seen it myself it might be the transformer who has a cut of when the voltage drops too low.
So here is my plan.
Build a 18650 based powerwall 14S50 to 100p haven't decided yet , can get NCR18650GA for 3.20 /piece for 1400 pieces; but firstgot to install my workshop , mill , lathe and other tools like a spot welder to make 18650 packs,to see what it will use up on a normal day since i work from home.
I also have a 7kva diesel generator (triphased) that i would like to use in case oflack of sun like in winter where we only get 3-4 hours of decent sunlight or simply if i'm using a lot of energy and the packs are low or i consider using up lots of power in a short time.
I'm planning oninstalling 2 to 6kwh solar panels (depending on the consumptiontaht i will mesure)on the roof which is like 90 m straight to the south. Or a solar flower or 2in the garden
And maybe a few bladlesswind turbine (vortex bladless) if the municipality is ok with it and if there is enough wind in the year.
Then i will need to find a way to cope with the voltage issue.
Now i was thinking of coupling a 500 farad ultracap bank to the batteries to solve the issue of sudden current draw but is there an inverter that can allow using on grid and off grid power at the same time to regulate the voltage ?
Can i have on a clowdy day the generator start up if the batteries are to lowand still have the solar panels help charge up?
Having fiddled a bit with ultra caps i was thinking of using a seperate inverter that can cope with large voltage drops and still send out a triphased current but then comes the question of charging and balancing the ultra caps. i can do it with resistors or a few fets and use a programmable li ion chargerbut is there anything out there that is made for this out of the box ?
Is there any system out there that can manage starting a generator ? i guess yes .
So any insights, help advice , links or names would be great.
thanks