In a large bowl combine peaches, honey, peppers and white wine. With a large spoon, stir until peaches begin to break apart.
Place mixture in a blender. Blend until smooth.
Pour sauce into a small pot.
Place pot on stove over medium heat. Simmer until reduced by 2/3. Remove from heat and set aside. (Can be done in advance)
Place ginger into a food processor. Pulse to purée.
Place ginger into a small mixing bowl. Add garlic and brown sugar. Mix well.
Rub mixture on the salmon fillets.
Build a hot fire in a charcoal grill or preheat gas grill to hot.
Clean and oil grill grates.
When grill is hot, place salmon, skin-side down (if skin is still on, either side if not), on the hot grill.
Heat just long enough to crisp skin, about 3 - 4 minutes or just long enough to add grill marks and cook surface, if no skin, about 2 minutes.
Turn fillets over. Heat just long enough to add grill marks and cook surface, about 2 - 4 minutes.
Remove salmon from grill and place, skin side down, on a well-greased oven pan.
Preheat oven to 350°F.
Brush tops (skinless side) with prepared sauce.
Place pan in oven and bake for 10 - 16 minutes, checking for doneness after 10 minutes. Salmon should be cooked to a minimum internal temperature of 145°F.
Remove salmon from oven and place on serving platter or individual plates.
Drizzle a small amount of remaining sauce over top.
Serve hot with remaining sauce on the side for dipping, if desired.