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_21690339_1 ( gas_storage VARCHAR, alternative_fuel VARCHAR )

### Question ###
What was the gas storage status for the nation that had 'yes' for alternative fuel?

### Accurate SQL ###

SELECT gas_storage FROM table_21690339_1 WHERE alternative_fuel = "Yes"