Research of combined cooling heating and power systems (1): distributed energy resource or combined cooling heating and power

Of the distributed energy resource (DER) system and the combined cooling heating and power (CCHP) system in China, there are many subjects to be further researched, relevant laws and regulations, standards and codes remain to be established, and experience and lessons of engineering practice need to be analyzed and summarized. Points out that the DER and CCHP systems are not the different name of the same system. Gives the terms, definitions, and demarcation of the two systems. Presents the relevant standards at home and abroad, and discusses the relevant issues.