Hi everyone,
Some background first. I have retired to rural Thailand, I am last on the power line getting the leftovers. My house is 4-500m away from my meter. We are waiting for an upgrade and the meter to be placed by the house but that is a year plus away.
The supply is 220v, but as I have found out can briefly drop to less than 140v when someone further up draws a load. It recovers after a few seconds.
I recently bought a 30kw stabilizer and from watching the digital display is how I know how low the voltage can drop. The stabilizer can handle 145-260v input to give a steady 220v output. The problem is when we get the sudden drop the stabilizer cuts out for a few seconds leaving the house without power. Without the stabilizer it is impossible to run AC at night during the hotter months.
I have been looking at solar for a while now but I don't want to go off grid, I don't want huge banks of batteries that need changing every 10 years or less.
Solar and day time no problem, I am looking at 36-48 panels, enough to power the house and the excess back to the grid. It is night that is the problem.
My primary question is:
Can I use a lithium power wall (or equivalent) that is topped up by the panels in the daytime and use it as a kind of UPS?
They claim a switchover time of 0.01sec. It would only need to provide power for a few seconds at a time (quite a few times during the night) I would be running 2 or 3 AC units, fridge, freezer and some other very small load items.
Any advice or alternative suggestions gratefully received.
On a separate note have any of you first hand experience of Zinc Bromine batteries? They would be my ideal choice from reading about them but it is availability.
https://redflow.com/products/redflow-zbm2/
Many Thanks
Some background first. I have retired to rural Thailand, I am last on the power line getting the leftovers. My house is 4-500m away from my meter. We are waiting for an upgrade and the meter to be placed by the house but that is a year plus away.
The supply is 220v, but as I have found out can briefly drop to less than 140v when someone further up draws a load. It recovers after a few seconds.
I recently bought a 30kw stabilizer and from watching the digital display is how I know how low the voltage can drop. The stabilizer can handle 145-260v input to give a steady 220v output. The problem is when we get the sudden drop the stabilizer cuts out for a few seconds leaving the house without power. Without the stabilizer it is impossible to run AC at night during the hotter months.
I have been looking at solar for a while now but I don't want to go off grid, I don't want huge banks of batteries that need changing every 10 years or less.
Solar and day time no problem, I am looking at 36-48 panels, enough to power the house and the excess back to the grid. It is night that is the problem.
My primary question is:
Can I use a lithium power wall (or equivalent) that is topped up by the panels in the daytime and use it as a kind of UPS?
They claim a switchover time of 0.01sec. It would only need to provide power for a few seconds at a time (quite a few times during the night) I would be running 2 or 3 AC units, fridge, freezer and some other very small load items.
Any advice or alternative suggestions gratefully received.
On a separate note have any of you first hand experience of Zinc Bromine batteries? They would be my ideal choice from reading about them but it is availability.
https://redflow.com/products/redflow-zbm2/
Many Thanks
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