preheat oven to 400 degrees.
Pat salmon dry with paper towels. Season salmon with salt and pepper. Lightly spray a 9x13 baking dish with cooking spray. Place salmon in dish skin side down.
Heat large skillet over medium high heat. Add oil, fennel and onion. Saute for about minutes. Reduce heat to medium. Add salt, pepper, thyme, and wine. Sprinkle with sugar.
Cook vegetables for about 10 minutes, stirring as needed to prevent sticking until vegetables begin to carmelize.
Place vegetables over salmon. layer orange sliced on top. Squeeze lemon juice over top.
Bake for approximately 10 minutes until fish easily flakes and internal temperature reaches 145 degrees.
Remove cooked thyme. Plate salmon over rice and garnish with fresh thyme anf fennel fronds.