Using a large Dutch oven or other heavy bottomed pot, heat olive oil over medium-high heat. Add the potatoes, celery, onions and season with salt and pepper and cook, stirring frequently, until the potatoes begin to soften, for about 5 to 6 minutes. Add the red peppers, sun-dried tomatoes, chicken broth (or vegetable broth) and 1 cup water. Turn the heat to high and bring to a boil. Pour in the heavy cream and mix well. Cover halfway and and let simmer, until the potatoes are tender, for about 15 to 20 minutes.