Complex sentence: Residential installation starts in early 2007 fell off sharply because of the disincentives inherent in SB1, requiring time-of-use (TOU) tariffs, with the result that homeowners who install panels may find their electric bill increasing rather than decreasing.
Split into simpler sentences: Residential installation starts in early 2007 are falling off sharply because of the disincentives inherent in SB1. This law requires new residential solar installations to be charged under time-of-use (TOU) tariffs, with the result that homeowners who install panels may find their electric bill increasing rather than decreasing.