CREATE TABLE table_42979 ("Name" TEXT, "Location" TEXT, "Field" TEXT, "Capacity  ( MW ) " FLOAT, "Annual Generation  ( average GWh ) " TEXT, "Commissioned" TEXT)

What is the Annual Generation at Kawerau (Bope)?
SELECT "Annual Generation (average GWh)" FROM table_42979 WHERE "Name" = 'kawerau (bope)'
SELECT "Annual Generation (average GWh)" FROM "table_42979" WHERE "Name" = 'kawerau (bope)'