Other Business Areas >> Business Areas >> Other Business Areas >> ESCO Projects ESCO (Energy Service Company)   Halla Energy & Environment is assisting businesses that are involved in developing and converting effective energy generated from manufacturing plants of industries, incinerators, sewage water treatment plants and large buildings into resources through technology development and investment funds. Waste heat retrieval facility for Orion Electrics Haeundae cogeneration facility (electric power production & heat utilization) Gimhae cogeneration facility (electric power production & heat utilization) Waste heat retrieval & fuel conversion facility for Bowater-Halla Paper Corp..