Grilled Corn Chowder with Avocado

Name: Grilled Corn Chowder with Avocado
Ingredients: 8 ears sweet Corn (husks on); 6 tablespoons butter (softened); 2 tablespoons minced, fresh Cilantro; 1 clove garlic (minced); salt (to taste); freshly ground Black pepper (to taste); 2 tablespoons good-quality olive oil; 1 large, fresh tomato (rinsed and chopped); ⅔ cup green chile (drained); 1 cup white onions (chopped); 1 cup canned black beans (drained and rinsed); 1 red Bell pepper (rinsed; trimmed and diced); 3 cups Vegetable broth; ½ cup half and half cream; ¼ teaspoon Chili powder; 1 tablespoon fresh Lime juice; 2 ripe Avocados (diced); 2 Limes (cut into wedges)