CREATE TABLE table_75371 ("Country" CLOB, "Project Name" CLOB, "Year startup" CLOB, "Operator" CLOB, "Peak" CLOB)

What is the Operator with a Peak that is 55?
SELECT "Operator" FROM table_75371 WHERE "Peak" = '55'
SELECT "Operator" FROM "table_75371" WHERE "Peak" = '55'