text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_23840623_4 (dirty_electric_grid_rocky_mountains__denver_ VARCHAR, epa_rated_combined_fuel_economy VARCHAR)
  ### Question:
  How many dirty electric grid rocky mountains (denver) vehicles have an  epa rated combined fuel economy of 102 mpg-e (33kw-hrs/100mi)?
  ### Answer:
  SELECT COUNT(dirty_electric_grid_rocky_mountains__denver_) FROM table_23840623_4 WHERE epa_rated_combined_fuel_economy = "102 mpg-e (33kW-hrs/100mi)"