Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2958 ( "Vehicle" text, "Operating mode" text, "EPA rated All-electric range" text, "EPA rated combined fuel economy" text, "Clean electric grid California (San Francisco)" text, "U.S. national average electric mix" text, "Dirty electric grid Rocky Mountains (Denver)" text )

### Question ###
How many dirty electric grid rocky mountains (denver) vehicles have an epa rated combined fuel economy of 102 mpg-e (33kw-hrs/100mi)?

### Accurate SQL ###

SELECT COUNT("Dirty electric grid Rocky Mountains (Denver)") FROM table_2958 WHERE "EPA rated combined fuel economy" = '102 mpg-e (33kW-hrs/100mi)'