Preheat your oven to 350°F (175°C).

Grease a 9x5-inch loaf pan with non-stick spray or line it with parchment paper.

In a large mixing bowl, whisk together vegetable oil, granulated sugar, brown sugar, and eggs. Add vanilla extract and mix until well combined.

Grate the zucchini and squeeze it in a clean kitchen towel to remove excess moisture before adding it to the wet ingredients.

In a separate bowl, whisk together all-purpose flour, cocoa powder, baking soda, baking powder, and salt.

Gently fold the dry mixture into the wet ingredients, being careful not to overmix.

Fold in the chocolate chips to the batter.

Pour the batter into the prepared loaf pan and smooth the top with a spatula.

Bake in the preheated oven for 50–60 minutes, or until a toothpick inserted in the center comes out clean.

Let the baked bread cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely. Slice and enjoy!