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_name_17 (identifier VARCHAR, power VARCHAR)

### Question ###
what is the identifier when the power is 22500 watts?

### Accurate SQL ###

SELECT identifier FROM table_name_17 WHERE power = "22500 watts"