Preheat Oven to 375 degrees. Cut bacon in half and wrap around bunch (approximately 12) green beans and secure with toothpicks. Place in a 9X13 baking pan, continue until you have used all of the bacon.
Make a glaze from the butter, brown sugar, garlic powder, salt & pepper. Melt the butter in a saucepan, add brown sugar, garlic powder and salt & pepper. Pour over green beans and bacon. Cover with aluminum foil and bake at 375 for 40 minutes. Uncover and bake for another 5 minutes or until brown.