CREATE TABLE table_24837750_1 (date_in_service VARCHAR, installed_capacity__mw_ VARCHAR)

When did this wind farm started service with a capacity of 135 MW?
SELECT date_in_service FROM table_24837750_1 WHERE installed_capacity__mw_ = "135"
SELECT "date_in_service" FROM "table_24837750_1" WHERE "135" = "installed_capacity__mw_"