CREATE TABLE table_238 ("Power Source" TEXT, "Number of Generators" FLOAT, "Power Capacity  ( GW ) " TEXT, "% of total Capacity" TEXT, "Capacity factor" TEXT, "Annual Energy  ( billion kWh ) " TEXT, "% of annual production" TEXT)

What is the % of annual production of solar?
SELECT "% of annual production" FROM table_238 WHERE "Power Source" = 'Solar'
SELECT "% of annual production" FROM "table_238" WHERE "Power Source" = 'Solar'