Solar power to a detached garage for only a garage door opener

[ktg]

I realize that there are posts that address this question, but let's just say that as far as experience and understanding goes, I look up to newbies because their knowledge and experience greatly exceeds mine....That said...

I am aware of DC, battery-backed-up openers that have their own lighting - maybe 1/4 to 1-1/4 hp - whose battery is supposedly able to cycle 50 times without a charging source. What I fail to find info about is what size panel it required to run (when sunny) and charge (when not) such a simple setup. And is it that simple? Should I have an extra battery? I'm in southeast Michigan, do I need this extra battery in a ventilated, insulated box? Why?

Is it really just simply attaching a 100watt panel to the southern face of the front of my garage, running the line inside, getting the opener installed, and hardwiring it?

I look at plans and websites and see 'inverter," followed by, "cheap is bad," or "only have a professional electrician install an inverter."

I just know that I ain't paying $4500 to get power to my garage.

Thank you in advance! Safe Travels.

I am interested in using the battery backup DC with a solar panel but Chamberlain just told me "You would eventually damage the transformer and logic board in the motors" if you run the opener only on the battery
Model 8550wlb

 

[schmism]

this is the perfect setup for a jackery style solar generator and a 100W pannel on the roof. Plug and play.

 

[AMA3]

@SilentP , please share what you end(ed) up doing and how it turned out. I'm in a similar situation and would like to implement a solution before winter hits!

 

[guitarpdd]

Since you consider yourself a beginner at this, any explanation, scheme, or plan will not help you at the moment. And I agree with the idea that only a professional electrician should install an inverter. This is quite a difficult job. I still wanted to install an inventor on my new door that I bought from https://doorsdirect2u.co.uk/product-category/french-doors/, thinking that I would be able to connect and install it myself. But without success and until the end, I still asked for the help of a specialist. This is the most reliable solution.

 

[teal95]

It's not that complicated. A panel could be wired directly to the battery, but that's not the best solution. I would probably be looking at making it more complicated by putting in a bigger battery and adding some 12v lights in the garage, with a 100w panel and some sort of charge controller. To me it sounds like a good project to start learning with.