Energy Management Contract (EMC) is a new energy-saving model successfully applied internationally based on market operations.

Air compressor energy management contracts refer to a cooperative model in which an air compressor service provider delivers energy-efficient air compressor equipment and system optimization services to help clients save on electricity costs and share the resulting energy savings. After a certain period, once the service provider has gradually recovered costs and profits, all energy-saving equipment is transferred to the client free of charge.

The essence of this cooperation model is an energy-saving business approach where the entire cost of the energy-saving project is paid through reduced energy expenses. Clients use future energy savings to upgrade factories and equipment, thereby reducing operating costs.

BOT is the abbreviation of Build-Operate-Transfer in English, which literally translates to: construction--operation--transfer. It generally refers to the government granting a private enterprise (including foreign companies) a concession for a certain period through a contract, permitting them to finance, construct, and operate specific public infrastructure, and allowing them to recover loans, recoup investments, and earn profits by charging users fees or selling products.

Compressed air BOT project cooperation refers to a model where compressed air service providers, within the period specified in the agreement, sell compressed air to customers at an agreed price on a regular basis. This is done to recover the investment, financing, construction, operation, and maintenance costs of air compressor equipment and system optimization projects while obtaining a reasonable return. At the end of the agreement period, the ownership of the fixed assets is transferred to the customer free of charge.

The BOO model, which stands for Build-Own-Operate, is one of the core collaboration models in the field of smart shared air compressor stations.

Under this model, professional investors fully cover all construction costs for smart air compressor stations, including site selection and planning, equipment procurement and installation, and the setup of intelligent systems. Once completed, the investors permanently own the assets of the air compressor station. They are responsible for the operation and maintenance management throughout the station's lifecycle, including equipment maintenance, emergency repairs, intelligent scheduling, and energy consumption optimization, providing gas-using enterprises with stable and efficient compressed air supply.

The intelligent shared air compressor station EPC model (Engineering Design — Procurement — Construction General Contracting) entrusts the general contractor with full responsibility for the entire process of the station, including design, equipment procurement, construction and installation, as well as commissioning and acceptance, taking full accountability for project quality, schedule, and cost.

The owner only needs to define the requirements and complete the final acceptance. Once the project is completed, the assets belong to the owner, who may either operate the air compressor station independently or delegate a professional team for subsequent operation and maintenance.