CREATE TABLE table_22765 ("Entities" TEXT, "Country" TEXT, "Supply point" TEXT, "Voltage  ( kV ) " FLOAT, "Power  ( MW ) " FLOAT)

In how many countries is Itaipu a supply point for electricity?
SELECT COUNT("Country") FROM table_22765 WHERE "Supply point" = 'Itaipu'
SELECT COUNT("Country") FROM "table_22765" WHERE "Supply point" = 'Itaipu'