How much capacity was installed in Wheatland?
CREATE TABLE "table1_24837750_1" (
  "wind_farm" text,
  "installed_capacity_mw" text,
  "turbine_manufacturer" text,
  "county" text,
  "date_in_service" text
);
SELECT "installed_capacity_mw" FROM "table1_24837750_1" WHERE "county"='Wheatland';