I'm sorry if this question is too trivial for this Q&A forum. I am a layman when it comes to physics (though I did cover the high-school physics courses).
I was wondering what happens to the electricity, that is generated by your own solar panel, in case you don't use any electricity in your home. Does it turn from electrical energy into heat? Or does something else happen? Is the energy "lost" for practical purposes?
A follow-up question: In case the energy is "lost" for practical purposes, wouldn't that be an enormous waste of energy? Is this what the "Smart Grid" network is intended for? To distribute the energy to other places where it is needed, thereby minimizing the energy loss and CO_2 emissions?