Tweet
We're a solar installer in the Midwest, Sun City Solar Energy. We've installed a lot of off-grid and grid-tied batt systems. I've got a request that is different. I've gone to Schneider and Sol-Ark for help...but because our question is outside of their capabilities, haven't gotten anywhere. Hoping someone here may have a solution.
We have a prospect with a large ranch on the grid. The crit loads are located in different buildings. He's not interested in having a separate crit load panel created and powered by his batts. Instead, he wants solar/batts to power his main panel.
Fair enough, we can make the output of invert(s) power his entire loop. However, we are limited by the amp output of the inverts. It's a 200A service we're trying to power and we know the amp limitation out of the XW Pro. We can install the bypass that Schneider has developed. We've done that on a couple other projects. However, he doesn't want the bypass...that means everything is powered by the grid UNTIL an outage. And he's selling back production at wholesale cost and he'll never recoup any investment. He wants solar to power his loads UNTIL the load is greater than what the invert can provide (say 30A) and then it auto switches to the grid. (If grid is not present, his Gen kicks on).
See attached diagram.
We're looking for some type of transfer switch that switches based on AMOUNT of load present. (Typical ATS switches based on power being present). I picture it using a 30A breaker...when the load hits this level, the breaker flips and Grip power is provided. Loads drop below 30A and it switches back to invert. Balance between L1 & L2 a consideration here, but not anything that can't be compensated for.
Anyone had experience with this? Is there a piece of equipment that does this? Any other ideas for system design?
We have a prospect with a large ranch on the grid. The crit loads are located in different buildings. He's not interested in having a separate crit load panel created and powered by his batts. Instead, he wants solar/batts to power his main panel.
Fair enough, we can make the output of invert(s) power his entire loop. However, we are limited by the amp output of the inverts. It's a 200A service we're trying to power and we know the amp limitation out of the XW Pro. We can install the bypass that Schneider has developed. We've done that on a couple other projects. However, he doesn't want the bypass...that means everything is powered by the grid UNTIL an outage. And he's selling back production at wholesale cost and he'll never recoup any investment. He wants solar to power his loads UNTIL the load is greater than what the invert can provide (say 30A) and then it auto switches to the grid. (If grid is not present, his Gen kicks on).
See attached diagram.
We're looking for some type of transfer switch that switches based on AMOUNT of load present. (Typical ATS switches based on power being present). I picture it using a 30A breaker...when the load hits this level, the breaker flips and Grip power is provided. Loads drop below 30A and it switches back to invert. Balance between L1 & L2 a consideration here, but not anything that can't be compensated for.
Anyone had experience with this? Is there a piece of equipment that does this? Any other ideas for system design?
Comment