Elementary question for you solar guys but I'm way behind when it comes to Solar.
I have a small (7600 watt) solar install with a "Generac" Utility Interface Converter + a battery pack.
Other solar installs I have seen with batteries have been stand-alone or interactive systems but this one has only the connection to the line side service. Since it has to auto disconnect on utility failure, what purpose do the batteries serve ?
As you stated you have a solar kit that is designed to be connected to the grid or stand alone--not connected to grid. Hence the battery pack.
Some INVERTERS (not converters) are designed for grid tie-in or standalone. For most residential purposes, you need to make the decision whether you want grid tie-in or standalone. This is the first step on deciding to take advantage of solar system.
On STAND ALONE system you intend to become independent and make your own electricity. . . freedom from POCO . You would need storage batteries for this.
On GRID-TIED system you don’t need the battery. . . you will be using the grid to act as your battery. This would be your backup in case your solar system goes south.
In essence, your grid connection is acting like a battery.
Now, the confusion arises when it becomes evident --when you noticed that there is only a connection to the grid :
“has only the connection to the line side service” (your word)
In- a – nutshell:
You can only either have one or the other.
Grid Tie or Battery Pack solar systems.
Now, the misconception that homeowners have is: why did I lose power yesterday and today (POCO disconnected power because of high winds two days ago) when I have this $30,000 worth of solar panels on my roof?
A 7000 watt solar array and the homeowner’s expectation to run his furnace, microwave and induction stove all at the same time through his 7000-watt solar panels.
(duh)
We know it’s not going to happen.
I believe, educating the homeowner through honest pitches by the utility providers and not just focus on business money-making scheme to corral [naive] investors.
This greed also develops as we trudge along the world of finance by enabling solar installers and suppliers while watching homeowners without power shivering in the cold.
We did get our power back last night after that whole day being wrapped up in a triple layer of blankets.
We made it through the day by browsing the web with power from my generator in my Motor Home.
My off-grid solar system (2000 watt) was good for running LED lights upstairs. Could not even run the TV for more than a full length movie.