Solar Powered, We had about an inch, but the driveway is very steep and not too much sun gets to it (plus we were only seeing temps in the teens). I wouldn't have plowed this morning except for an important appointment my wife had, she was getting her nails done! This was my first time plowing with the 418-C and I must say the Eaton hydro and lift made the job a pleasure. My wife commented that I will do anything to get more seat time, guess she caught on to me! Finished up about 9:00 and then turned to Jay's solar snow melting device to do the rest. So far it is working well where the shadows don't get in it's way.