D mn guro if ikaw ang mu build. Ang cost sa raw materials kay cheaper kaysa pre-built. Naa koy nakit an ang total cost for building solar panel kay mga $98 bucks ug sa wind turbine is $140... so i think there's a lot of room for profit there if your competitors are selling it at 100k. It's a matter lng kng kinsa ganahan makat on ug build ug mag sell una ana. Good luck!
naa ko nakit-an mga bro on how to build wind turbine for home use.. share it, maybe someone can build this simple system... at least we can make off-grid for laptops, lightings, mobile charging, etc... http://mdpub.com/Wind_Turbine/index.html
to those who can build it please share...
im thinking something like a gym bike or bsag bike then it stores up the energy that you can use sa laptop or phone or any appliance depende sa amount of energy na ma-store...so exercise nah, kuryente pah..hehe
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