What is the gross capacity of the unit that started commercial operation on August 28, 1987?
CREATE TABLE table_name_17 (gross_capacity VARCHAR, commercial_operation VARCHAR)
SELECT gross_capacity FROM table_name_17 WHERE commercial_operation = "august 28, 1987"
### Context: CREATE TABLE table_name_17 (gross_capacity VARCHAR, commercial_operation VARCHAR) ### Question: What is the gross capacity of the unit that started commercial operation on August 28, 1987? ### Answer: SELECT gross_capacity FROM table_name_17 WHERE commercial_operation = "august 28, 1987"