12VoltInstalls
life passes by too quickly to not live in freedom
Going to be doing something for my sister/bil with an LV6548 variant and 10kWh battery, 6600W solar input.
“Averaged” daily kWh (13mo) is 19kWh with water heating separately metered 9.6kWh. I want to leave the top element on grid at at 240VAC disconnecting the bottom element from grid supplying it through lower thermostat instead with 120VAC from the AIO.
I’ve read a number of threads like this so I know it’s possible and done. I intend to switch the bottom element through a relay triggered by a photocell so that the lower element only runs when the sun is out which brings up a concern.
The lower element “should be” 1100W at 120VAC; basically 10A. Dumb question that I don’t have the experience to answer: is that ‘shock load’ (although no surge) going to present any issue for the 6548? There’s no surge on a resistance load, of course, and I guess that would have similar ‘violence’ as a hair dryer or shop vac, so maybe I’m thinking about things for no reason. I just haven’t done the hot water thing before.
The only reason for switching is that all they can do right now is two 5kWh batteries for 10kWh and their 9.6kWh average hot water consumption would by wildhat guessing suck 5kWh out of the batteries from evening consumption.
Am I doing what i do well (overthinking), or is my reality check: reality.
?Thoughts?
Option “B” would be to buy the smallest cheap battery-less AIO that will do it on 6 of their 375W panels and just let it cycle on its own. I didn’t see any threads of anyone doing that. But at that point just buying another 5kWh battery would be virtually the same expense.
“Averaged” daily kWh (13mo) is 19kWh with water heating separately metered 9.6kWh. I want to leave the top element on grid at at 240VAC disconnecting the bottom element from grid supplying it through lower thermostat instead with 120VAC from the AIO.
I’ve read a number of threads like this so I know it’s possible and done. I intend to switch the bottom element through a relay triggered by a photocell so that the lower element only runs when the sun is out which brings up a concern.
The lower element “should be” 1100W at 120VAC; basically 10A. Dumb question that I don’t have the experience to answer: is that ‘shock load’ (although no surge) going to present any issue for the 6548? There’s no surge on a resistance load, of course, and I guess that would have similar ‘violence’ as a hair dryer or shop vac, so maybe I’m thinking about things for no reason. I just haven’t done the hot water thing before.
The only reason for switching is that all they can do right now is two 5kWh batteries for 10kWh and their 9.6kWh average hot water consumption would by wildhat guessing suck 5kWh out of the batteries from evening consumption.
Am I doing what i do well (overthinking), or is my reality check: reality.
?Thoughts?
Option “B” would be to buy the smallest cheap battery-less AIO that will do it on 6 of their 375W panels and just let it cycle on its own. I didn’t see any threads of anyone doing that. But at that point just buying another 5kWh battery would be virtually the same expense.