One piece of technology we can modify is that are cellphones. Teens use cellphones constantly out side and inside. This may be a common idea but It can work. We can solar power cellphone! On the back of cellphones we can put solar panels so when teenagers are texting, the phones can be powered with sunny energy! It will cut down the use of chargers which sometimes people leave in the socket. When chargers are left in the socket, they still use energy, even if their not being used. We can save energy!