Preheat the oven to 400°F. Have nearby a baking sheet.
Wash pat dry with paper towels and place on a baking sheet. Use a fork to poke each potato a few times on top.
Drizzle each potato with a small amount of oil rubbing all over. Sprinkle with coarse sea salt (eyeball the amount) and bake for 50-60 minutes or until the tip of a knife easily glides thru the middle and they're cooked through
Carefully cut around a ½ inch slice from the top of each potato. Use a spoon to scoop out the potato flesh placing into a medium bowl leaving around a ¼ inch border of potato attached to the skin to stabilize. Place the scooped out potato shells back onto the baking sheet.
To the potato filling add sour cream, cream cheese, butter, heavy cream, Ranch dressing mix, garlic powder, salt, black pepper, white parts of green onions, bacon and 1 cup shredded cheese. Using an electric mixer, beat the mixture until desired creaminess. (You can make the filling smooth or leave a bit chunky to your personal taste.) Reserve some bacon for tops and green onion for garnishing.
Fill each potato shell with the potato mixture. Top each potato with the remaining 1 cup of cheddar cheese and reserved bacon. Bake in the oven until the potato filling is warmed through, around 20 minutes.
Garnish green onions and serve immediately.