Table schema:
CREATE TABLE table_name_14 (type VARCHAR, capacity___mw__ VARCHAR, rank VARCHAR, province VARCHAR)

Question: what is the type when the rank is smaller than 70, the province is british columbia and the capacity (mw) is more than 2,480?
SQL: SELECT type FROM table_name_14 WHERE rank < 70 AND province = "british columbia" AND capacity___mw__ > 2 OFFSET 480