Mix orange juice, soy sauce, honey, ginger, garlic powder and green onion in small bowl. Reserve 2 tablespoons of the marinade. Place salmon in large resealable plastic bag or glass dish. Add remaining marinade; turn to coat well.
Refrigerate 30 minutes. Remove salmon from marinade. Discard any remaining marinade.
Grill over medium-high heat 6 to 7 minutes per side or until fish flakes easily with a fork, basting occasionally with reserved marinade.