Spidr

We are an elementary First lego league team. Four our Hydrodynamics project this year, we invented a device that uses water running through a downspout to generate electricity.
We were able to produce 8.5 volts and charge a 1.5 amp phone battery.
The Generators
https://www.amazon.com/Yosoo-Generator-Small-Hydroelectric-Power/dp/B01A0A2BKG/ref=sr_ph_1?ie=UTF8&qid=1515790728&sr=sr-1&keywords=small+hydroelectric+generators
fittings
https://www.homedepot.com/p/DURA-1-2-in-Schedule-40-PVC-Fema