All this week on, we're breaking down the inner workings of game-changing energy technologies -- including microgrids, particle accelerators, 3D printers and wind turbines -- with the launch of our new series on How Energy Works.

Check back every day for a new deep dive into each technology and get your most pressing questions on that technology answered every day by experts from the Energy Department and our National Labs. Submit your questions now using #HowEnergyWorks and join us at 2 p.m. EDT every day for Twitter Office Hours.

As we move the How Energy Works series forward, we want your input. Vote for your favorite technology below, and it could be the next topic we cover for How Energy Works!

Voting ends at 5 p.m. ET on Friday, June 20, 2014.