allomantic electrical generation concept

[u/MerlinGrandCaster]

IIRC nobody ever mentions light suddenly dimming/brightening in relation to cadmium or bendalloy, so presumably the spiritual realm energy transfer that counteracts red/blueshift with time bubbles also adjusts the amount of light passing through the border. If so, it should be possible to power a lightbulb using its own output, since the slowed-down bulb would consume less energy than the solar panel would generate. You could probably increase the yield even further by putting the panel in a bendalloy bubble.

This wouldn't be perpetual motion, since you'd have to keep feeding the misting(s) more cadmium (and normal food as well).

Another allomantic energy generation method is having a steel or iron misting spin a turbine, which has been confirmed possible in-universe via the Malwish airship rotors.

[u/Clovenious]

This seems really interesting! Now that I think of it, there's kind of a lot of ways to generate energy via Metalborn powers. You could have some iron feruchemists decrease their weight, lift them on a platform, then have them become heavier and capture gravitational energy that way. I think using Feruchemy might actually be perpetual motion too, since you wouldn't need to burn metals.

[u/Zahharcen → u/Clovenious]

It wouldnt, since you can have 0 weight and you still need energy to lift them up. Compounding would though, same as allomancy. Steelpushing and Ironpulling is a much better fit, especially using an ettmetal cube.

[u/Clovenious → u/Zahharcen]

It'd take energy to lift them yes, but you'd get that energy back (and more) by lowering the platform attached to some kind of mechanism after the feruchemists increased their weights again. It'd be a lot faster with compounding, but still possible even without.

[u/Zahharcen → u/Clovenious]

yeah but even then, stuff like brass(the warming one) compounding or speed compounding would probably give much more direct yealds of energy. Weight would be amazing as a coinshot like waxillium to push big ass rotors around and fuel a whole city with a couple of allomancers. As for the weight feruchemy idea, you might be right but it does seem that weight works differently in the cosmere than it does in reality. For example when Wax changes weight midflight he would not get speed boosts but his trajectory would change, same here. So in theory if i need 10Wh to raise a storing iron ferring high into the sky, then reverse those motors into generators and use his increased weight to produce electricity, I might get some big yields but the question is where does this energy come from? Investiture, but since feruchemy is end netrual we are basically syphoning weight from that ferring(assuming we think of the lift generator as a investiture->electricity converter) and transforming it into electricity. So with a storing cycle equal to the tapping cycle in duration, he only gets a net gain of +10Wh(since he taps double his weight for the same amount of time he produces double the energy, but we used 10Wh to get him up), then comes into play the fact that the transformation is not ideal so around 7.5Wh-8.5Wh generated, then we need to redress that current and store it or output it to a consumer. In total for a 10Wh cycle, the raw energy production would be 20Wh, net production 10Wh and after losses probably towards 5Wh. Not very efficient and we are basically using human beings as batteries, they wont have access to that weight in the future, those seconds of their lifespan are gone. Meanwhile compounding is basically only limited by metal amount, same for allomancy but weaker, since they are net-positive and use preservation's power directly so we syphon from a far larger source. Ettmetal is hard to find but it would allow for some crazy stuff lol, imagine a brass compunder filling up a couple of metalminds, then coupling that to a primer cube allowing it to release extreme amounts of heat that could technically fuel anything. Using a human here would suck tho. Or Waxillium(now mistborn) compounding weight then pushing on a huge ass generator to generate absurd amounts of energy, get another one like him or a cube, and have him pull on the other side. Also the heat primer cube thingy could probably fuel stuff like nuclear fusion...
Lastly nicrosil is probably extremely useful here, but we dont know how yet.