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_203_78 ( id number, "location" text, "reactor type" text, "status" text, "net\ncapacity\n(mwe)" number, "gross\ncapacity\n(mwe)" number )

### Question ###
which reactor is the only one that is operational until august 2026 ?

### Accurate SQL ###

SELECT "location" FROM table_203_78 WHERE "status" = 'operational until august 2026'