Preheat oven to 350 degrees
Spray 2 9 x 5 inch loaf pans with cooking spray and set aside.
Grate your zucchini in a food processor or with a large-holed vegetable/cheese grater.
In medium-sized mixing bowl whisk together flour, baking powder, salt, cinnamon, nutmeg, and baking soda.
In a separate, large bowl whisk together the eggs, vegetable oil, sugar, and vanilla until light and fluffy.
Add in zucchini, chocolate chips, and orange zest.
Mix in dry ingredients and divide mixture evenly into prepared loaf pans.
Bake for 45-50 minutes or until a toothpick inserted in the middle comes out clean.
Remove loaf pans from oven and let cool for 15 - 20 minutes and remove from pans by running a knife along the edges of the bread and gently removing from pans.