One of the causes of the recent EESS fire in Korea was found to be a lack of management of the operating environment. In particular, the new and renewable energy-connected EESS installed in mountainous and coastal areas is operated in an environment where condensation is likely to occur due to the large difference in weather and exposure to a large amount of dust. Insulation is destroyed between the cell and the module enclosure, which can lead to a fire due to repeated condensation and drying in the battery module. To prevent this, attention is required to external environmental factors such as temperature and humidity in the installation space for the stable operation of EESS. Therefore, this paper proposes environmental requirements for the stable operation and management of EESS by identifying major items of environmental factors that may cause damage in the operation and management of EESS and seeking ways to minimize them.