Entertainment can still have it's halogens, but it's finally time to kick those old mongul based scoops.
The average home without central air uses 25kw per day TIMES 100 million homes! A 1k theater bulb uses 1kw each hour, but is usually only on for an hour during the show. So, if you work out the Kw per hour prorated across the day and month, it's not that bad, in fact, the "house lights" at a theater may use more electric only by virtue of the amount of hours they are on. Of course the big factor is how many houses there are verses theaters!
Here's an exceprt from the California bill (highlighting is mine):
(d) (1) On and after January 1, 2012, a general service
incandescent lamp shall not be sold in the state.
(2) For the purposes of this subdivision, "general service
incandescent lamp" means a standard incandescent or halogen type lamp
that is intended for general service applications and has all of the
(A) A medium screw base.
(B) A wattage rating no less than 25 watts and no greater than 150 watts.
(C) A A-15, A-19, A-21, A-23, A-25, PS-25, PS-30, BT-14.5, BT-15, CP-19, TB-19, CA-22, or equivalent shape as defined in the American
National Standard Institute C78.20-2003.
(D) A bulb finish of frosted, clear, or soft white type.
So, stage lighting is mostly safe.... but you won't be able to get bulbs for the dressing rooms Stock up now.
Full text is at http://www.leginfo.ca.gov/pub/07-08/bill/asm/ab_0701-0750/ab_722_bill_20070222_introduced.html