Since January, Advanced Energy Economy has been tracking hundreds of pieces of energy-related legislation filed in all 50 states, the District of Columbia, and the United States Congress. With some sessions already over and some just beginning, a number of trends have begun to emerge. Of course, just getting filed does not mean a bill will become law, or even that it stands much of a chance at all. But the patterns that arise in our survey of filed bills, which is by no means exhaustive, say a lot about what’s on lawmakers’ minds. And of course, some bills are already on the move. In what follows, bills with an asterisk have passed one house of its legislature as of May 25; two asterisks means that the bill has passed both houses (click through to see if it has been signed into law). We’ll be back this fall to catch up on what legislation has made it all the way to gubernatorial desks. For now, here is a look at our top 10 energy issues generating legislative activity across the country.