Season the sea bass fillets with salt, black pepper, and garlic powder on both sides.
Heat a non-stick skillet over medium-high heat. Add olive oil to create a thin layer in the pan.
Place the fish skin side down into the hot pan without crowding them too much for even cooking, and sear until golden brown (about 1 minute each). Flip carefully with a spatula or tongs.
Reduce heat to medium-low. Continue cooking uncovered on both sides just until opaque throughout the center of filletsβthis should take about another 2 minutes per side.
Remove from skillet and let rest for a few moments before serving, drizzled with extra olive oil if desired.
Serve immediately accompanied by lemon wedges on the side.