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_24837750_1 (date_in_service VARCHAR, installed_capacity__mw_ VARCHAR)

### Question ###
When did this wind farm started service with a capacity of 135 MW?

### Accurate SQL ###

SELECT date_in_service FROM table_24837750_1 WHERE installed_capacity__mw_ = "135"