Bright­source Ener­gy, Inc. (for­mer­ly Luz II) is a builder and oper­a­tor of renew­able pow­er plants for indus­tri­al and util­i­ty cus­tomers in the Unit­ed States.  The com­pa­ny’s ener­gy gen­er­a­tion approach is based on solar-ther­mal cre­at­ed steam sup­ple­ment­ed with gas, pro­vid­ing more sta­ble and more prof­itable pow­er gen­er­a­tion for util­i­ties than oth­er types of renew­able ener­gy like wind, hydro and pho­to­volta­ic. In addi­tion to DBL Part­ners, investors include Van­tage­Point Ven­ture Part­ners, Drap­er Fish­er Jurvet­son and Mor­gan Stanley.