user: Question: What is the Operator with a Peak that is 55?
Columns: ['Country', 'Project Name', 'Year startup', 'Operator', 'Peak']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['OPEC', 'OPEC', 'OPEC', 'OPEC', 'OPEC']
SQL:

assistant: SELECT "Operator" FROM "Table" WHERE "Peak" = '55';