I appreciate all of this amazing advice. Love this community. The roof is a definite no. Cant even have satellite dishes here. So the other factor at least for me regards the fact that; is a Power Wall without solar defeating the real purpose and advantage?.
if I was in that situation, I would likely sell it or trade it for something of similar value. I love the powerwalls I just had installed, but I wouldnt have gotten them if I lived in a townhouse / condo, or if I didnt have solar to go with them.
Whether its worth it depends on your electric bill structure. Since your location says "texas" and it appears to me that texas has some of the cheapest electricity for a big state in the nation (it seems to be somewhere between 4 times and 10 times cheaper than california, for example), I dont personally think a powerwall without solar makes sense in such a location.
Due to how taxes for the selling / buying party (1099's and such) may work, you may have an issue getting what you likely consider to be "fair value" for it, though,. They cost 6500 for example to buy from tesla, so many people assume that they can just turn around and sell them for 5k or 5500 and everyone wins because someone saves 1k and the person who doesnt want it gets a large chunk of change.
I dont know what these go for, but if you have received it now, you are the one who is going to get the 1099 for it (you mention its in your storage), so you need to take the taxes you are going to pay for that into account when you price it.
The other thing is, most people who would want to buy this from you likely already have a powerwall installed, so dont need the gateway (an 1100 value), and Its my opinion it would be difficult to sell the gateway to someone without the powerwall, so there is that catch 22 (sell the powerwall, gateway becomes virtually useless to sell to someone, but person buying powerwall likely wont want to pay for it as they have one already).
Finally, I have no idea how the install credit works since you have already taken delivery (if that credit is transferable for example).
Anyway, good luck with selling it. I have 2 of them and wish I had purchased 3 so if you were local to me, I might consider it for the right price, but im not interested in trying to get it shipped etc.
Good luck!