woodzykiler
New Member
There woudl also be 1,000AH of 48 batterys. there server rack cells. they can handle upto 100 amps each and there is 10 of them so 1000 amps of current. that should be enough i think?
New high power system USA
- Thread starter woodzykiler
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Ampster
Renewable Energy Hobbyist
1,000 Amphours at 48 volts is 48 kWhs. That is 200 Amps at 240 Volts for only an hour.
woodzykiler
New Member
as crazy that is, as i said before, our AVG usage is only about L1=10A and L2=2A
Dont think that will be pulling 1,000 amps on the battery bank. maybe like only 36 amps?
so in thought, about 27 hours of run time, enough to make it to morning
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labeeman
Solar Enthusiast
My system is not grid-tied but is split into non-grid and grid with the water heater, stove, dryer, and sump pump on the grid that usage on my bill is $ 25 a month an inverter for those items is $5K. The rest of the house is off-grid I have all my AC, heat, and small stuff (computers, lights, and kitchen appliances) I have 10KW PV with a 95KWH battery which will give me two days runtime with no sun if I have to use AC or heat if those two are not needed then 7 days runtime. Using the grid for backup is much cheaper than fuel for a generator. I also live in Hurricane Country and being able to go off-grid in case of a storm is nice when power is off for weeks.
Hedges
I See Electromagnetic Fields!
- Joined
- Mar 28, 2020
- Messages
- 20,687
Price out a 1000 Ah 48V battery.
Then price out a tank-type water heater, and compare them.
Battery backup is nice. Backing up an instant water heater is absurdly expensive. Backing up your communications gear and a furnace fan or electric blanket is more reasonable. Sufficient PV to power A/C while the sun shines, coupled with a small battery, is also reasonable. That is what I have.
Something like SolArk, with tank-type water heater connected as a dump load (part of zero-export) could meet your needs. Somebody else can help you specify and configure that, I'm a 100% SMA shop.
Then price out a tank-type water heater, and compare them.
Battery backup is nice. Backing up an instant water heater is absurdly expensive. Backing up your communications gear and a furnace fan or electric blanket is more reasonable. Sufficient PV to power A/C while the sun shines, coupled with a small battery, is also reasonable. That is what I have.
Something like SolArk, with tank-type water heater connected as a dump load (part of zero-export) could meet your needs. Somebody else can help you specify and configure that, I'm a 100% SMA shop.
Quattrohead
Solar Wizard
So it appears replacing your instantaneous electric water heater with a conventional tank water heater will save you a boatload of money and effort on the solar side of things. Do have room to place one?
Quattrohead
Solar Wizard
The EG4 power pro batteries are a better value per kWh than rack mount batteries and rather more professional looking. These along with an EG4 18k or 2 if required will give you a system that can be permitted.....you need to check the permit situation with your AHJ, someone will notice when you start climbing around your roof with solar panels for sure.
Also can you give us an idea of your current monthly electric use in kWh and what is the primary heating source for your house.
Also can you give us an idea of your current monthly electric use in kWh and what is the primary heating source for your house.
woodzykiler
New Member
I got mine from aliexpress for $8,961.3 with shipping. yes all 10 they arrived on a pallet.
not any more LOL!!
it was the tank or solar things.
Where there was a tank now sits a wall mouted unit. this freeded up so much space it was crazy!
i think you missed the part i said a fue back that i have them ground mounted on a Dual axis tracking post. If there is no backfeed NO permits required. Only the new panel is inspected for correctness the rest of the system is ignored.
DIYrich
Solar Wizard
You can run, but you cannot charge.
woodzykiler
New Member
Coal tanked furnace. just a small fluid pump 120V 2A
