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_24729_2 ( power VARCHAR, co2 VARCHAR )

### Question ###
when co2 is 192g/km, what is the power?

### Accurate SQL ###

SELECT power FROM table_24729_2 WHERE co2 = "192g/km"