The energy of the old uncle's chicken with rattan pepper is about 611-811 calories. An old uncle's chicken with rattan pepper contains 611-811 calories mainly for the following reasons:

1. protein: The old uncle's chicken with rattan pepper contains a lot of protein, and every 111 grams of chicken contains about 21-25 grams of protein. These protein can provide more calories than carbohydrates and fats.

2. Carbohydrate: The old uncle's chicken with rattan pepper is often accompanied by carbohydrate foods such as rice and noodles, which contain high calories, about 4 calories per gram.

3. Fat: My uncle's chicken with rattan pepper set meal also contains a certain amount of fat, about 9 calories per gram.

4. Ingredients and seasoning: The ingredients and seasoning in the old uncle's chicken with rattan pepper will also contribute to the heat, such as oil and salt.