I have no electricity issues, I just don't want to buy a hot glue gun.
I build without Hot glue because of many reasons including the long time durability of the joints and the somewhat extreme climates that my country experiences.
Initially I tried the UHU-Por but it was way way too expensive for the quantities I would be using and so I sought a lower cost equivalent and found a class of glues that work very well with relatively low cost.
Here is one of them that I believe is available in the US.
https://www.sullivans.net/products/details/49902/glue-craft-and-hobby-250ml-clear
It works on Foam Board, a wide variety of the foams found in current use for RC Model aircraft as well as with lighter and porous woods like Balsa.
If you are able to seal the FB surfaces prior to assembly and gluing then you can use cheap packing tape to hold the pieces firmly in alignment so that you can glue large numbers of joints and set them aside until the glue hardens/dries/sets. You can be frugal with the glue application and a bottle will last many models and as stated previously the weight of the glue in the model is quite minimal.
As for the glue joint strength I find the glue binds well to the foam and generally in a crash the FB rips and fails whilst the glued joints remain intact. It is so great for foam that I use it for repair of crashed foam, (retail), models and the repairs can be near invisible and incredibly strong.
Should you finish your models with a coat of paint over the sealant, (minwax), then the FB itself will stiffen as well and you will end up with a quite long lived model, (if you do not crash or otherwise damage it!. My son has a number of my creations using the method and materials I mentioned above and he stores them in a metal shed/garage. The temperatures inside exceed 60 degrees C in mid summer and yet the planes are as good as the day they were place there and fly the same as the day they were built.
Just what works for me!
Have fun!