Mexican Grilled Corn Chowder

Name: Mexican Grilled Corn Chowder
Ingredients: 8 large ears of sweet corn (about 6 cups), husks on; 2 tablespoons olive oil; 1 large tomato, chopped; 1 (4 ounce) can green chilies, drained; 1 cup chopped white onion; 1 cup peeled and chopped Russet potatoes, cut into 1/2-inch cubes; Salt and pepper to taste; 3 cups vegetable broth; 1/2 cup half-and-half; 1/4 teaspoon chili powder; Juice of 1/2 lime, plus more for garnish; Cilantro, chili powder and anejo/cotija/queso fresco cheese for garnish