SunPower rises on deal to acquire Sunder Energy

** Shares of residential solar services provider SunPower SPWR.O up ~2% at $1.6 premarket

** Company to buy solar company Sunder Energy for $40 million in cash and 10 million shares

** SPWR expects acquisition to increase its revenue by $74 million, with $18.5 million of that revenue being generated each quarter, starting in Q4

** "The merger will double the number of states we sell in from 22 to 45; multiply our presence in the key solar states of California, Texas and Florida," SunPower CEO T.J. Rodgers says

** Deal is expected to close this week

** As of last close, stock down ~12% YTD