Texas Dan
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I have been trying to get a handle on just exactly what needs to be installed to get Ford Intelligent Backup Power. One thing I realized after searching unsuccessfully for installation instructions and wiring diagrams for the Ford Charge Station Pro and the Sunrun Home Integration System is that the installation is basically the same as a Uninterrupted Power Supply (UPS) installation. A UPS typically just gets installed between the electrical service and the critical load (see wiring diagram at https://www.backupbatterypower.com/pages/wiring-diagrams ).
So how is the Ford Intelligent Backup Power similar to a typical UPS installation? Well they both have batteries to store electrical energy, they both have incoming power inverters to convert AC power to DC power, they both have outgoing power inverters to convert DC power to AC power and they both have transfer switches to switch from normal power to backup power. I have often said that most EVSE are barely more than extension cords and I don't believe the Ford Charge Station Pro has either inverters or transfer switches.
So, the inverters AND transfer switches must be in the Sunrun Home Integration System. it's a revelation that the Sunrun Home Integration System actually contains the transfer switch and that a separate transfer switch is not required. This concept actually makes the installation much less complicated.
So basically the Sunrun Home Integration System gets installed in series with the critical loads and then the Ford Charge Station Pro connects directly to the Sunrun Home Integration System with no direct connection to the main electrical panel. For me this solution solves a lot of problems because I have only a 150 amp main panel and I wasn't sure how I could get an extra 100 amps out of that panel/system. Now it looks like all that needs to be done is pull all the critical loads up to 100 amps off of the main panel and put those loads on a sub panel.
Then all those critical load breakers could be pulled from the main panel and replaced with a single 100 amp breaker. The Sunrun Home Integration System would be installed between the new 100 amp breaker in the existing main electrical panel and the new critical panel. The Ford Charge Station Pro would be connected to the Sunrun Home Integration System and vola, it's done!
So for all of you that are worrying about having to replace your main electrical service, I think you are worrying about nothing as long as your existing panel is at least 100 amps. Even if you have a 100 amp panel you may still want to put in a sub panel so you can use your existing main panel as a disconnect. Of course I could be wrong about what is inside the Sunrun Home Integration System but I think I have made a pretty good educated guess.
Hopefully my reasoning will take some of the mystery out of the Ford Intelligent Backup Power system installation. If any of you have any questions or comments we can discuss or if you have any official information about what exactly is inside the Sunrun Home Integration System, please post.
So how is the Ford Intelligent Backup Power similar to a typical UPS installation? Well they both have batteries to store electrical energy, they both have incoming power inverters to convert AC power to DC power, they both have outgoing power inverters to convert DC power to AC power and they both have transfer switches to switch from normal power to backup power. I have often said that most EVSE are barely more than extension cords and I don't believe the Ford Charge Station Pro has either inverters or transfer switches.
So, the inverters AND transfer switches must be in the Sunrun Home Integration System. it's a revelation that the Sunrun Home Integration System actually contains the transfer switch and that a separate transfer switch is not required. This concept actually makes the installation much less complicated.
So basically the Sunrun Home Integration System gets installed in series with the critical loads and then the Ford Charge Station Pro connects directly to the Sunrun Home Integration System with no direct connection to the main electrical panel. For me this solution solves a lot of problems because I have only a 150 amp main panel and I wasn't sure how I could get an extra 100 amps out of that panel/system. Now it looks like all that needs to be done is pull all the critical loads up to 100 amps off of the main panel and put those loads on a sub panel.
Then all those critical load breakers could be pulled from the main panel and replaced with a single 100 amp breaker. The Sunrun Home Integration System would be installed between the new 100 amp breaker in the existing main electrical panel and the new critical panel. The Ford Charge Station Pro would be connected to the Sunrun Home Integration System and vola, it's done!
So for all of you that are worrying about having to replace your main electrical service, I think you are worrying about nothing as long as your existing panel is at least 100 amps. Even if you have a 100 amp panel you may still want to put in a sub panel so you can use your existing main panel as a disconnect. Of course I could be wrong about what is inside the Sunrun Home Integration System but I think I have made a pretty good educated guess.
Hopefully my reasoning will take some of the mystery out of the Ford Intelligent Backup Power system installation. If any of you have any questions or comments we can discuss or if you have any official information about what exactly is inside the Sunrun Home Integration System, please post.
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