I am new to electrical projects, I have only wired a camper to run off a regular extension and made a small hand crank generator for a phone charger. I am looking to start an aquaponics system and was curious if I could set up a water wheel with a small generator made of copper wire and magnets around the bearing of the water wheel to send to a dc motor to send to a battery, and to use the battery to power a water pump motor that would point at the water wheel to keep it moving. As well as use the other side of the wheel as well and set up another small generator with copper wire and magnets to run to another dc motor and then to another water pump into a grow bed. That will trickle down back into the big tank with the wheel. I want to have a self contained system without running electricity to it from say an extension cord. Will this work or will the water wheel not support generating 2 dc motors at the same time ? In my head it seems like it could but I don't know if Im missing something due to lack of understanding electrical. I've watched tons of Youtube making water wheels and running motors from then to charge batteries and also little water pumps and studied small aquaponics systems and I was trying to combine different plans into one system. If what that plan is doesn't make sense let me know and I will try to link a blueprint of what I'm thinking.

I am building a steel garage kit. To install wiring, would like to minimize adding holes in the steel frame pieces. Clearly cannot use staples, and any kind of clip would need holes and self tap screws and a lot more effort; nor easy to rearrange if needed. I found a good deal on a big bag of stainless steel tie wraps a.k.a zip ties. I thought these would be quick and easy for attaching the various runs of 'romex' cable to the steel ribs and ceiling trusses. This sound feasible? Wanted to get an opinion before presenting to my inspector. (California). Who has been quite reasonable on a couple of issues so far. Thanks.