What is every city with a residential monthly usage of 11.80?
CREATE TABLE "table1_2082992_5" (
  "city_utility" text,
  "residential_monthly_usage_1000_k_wh" text,
  "small_power_power_demand_40_k_w_consumption_10_000_k_wh_load_factor_35pct" text,
  "medium_power_power_demand_1_000_k_w_consumption_400_000_k_wh_load_factor_56_pct" text,
  "large_power_power_demand_50_000_k_w_consumption_30_600_000_k_wh_load_factor_85pct" text
);
SELECT "city_utility" FROM "table1_2082992_5" WHERE "residential_monthly_usage_1000_k_wh"='11.80';