International interaction is a precondition for high-standard research. GIEC strives to promote international academic exchanges and scientific research cooperation. Since 1978, many cooperative and exchange programs have been developed with around 40 universities, scientific institutions and enterprises in 17 countries and regions. Every year, about 100 foreign scholars are invited to visit GIEC for giving lectures or taking part in short-term cooperative research. GIEC is actively engaged in a great number of international exchanges. The institute sends more than 60 faculty members abroad every year. Most of them return to take important posts in scientific research and administration. Furthermore, GIEC produced its international impact in the new and renewable energy by holding many international academic seminars and participating lots of international joint researches.