Even though the market seems to have a less-than-sunny view of solar stocks just now, one analyst recently upped his price target on sector mainstay SunPower (SPWR 0.63%). SunPower has an upside potential of more than 30% at the targeted price. Let's take a quick look at the state of the company and its industry to gauge whether the analyst's view is realistic.UBS bumps its SunPower price target higherIn mid-February UBS analyst Jon Windham added $0.25 per share to his fair value assessment of SunPower, for ...