Abstract
The article focuses on the energy efficiency issue and the negative impact on the environment of Cloud computing based on data centers infrastructure. A modernization of Cloud architecture in terms of Green computing is proposed, using FPGA hardware accelerators and distributed peer-to-peer networks. Customer and FPGA as a Service (FAAS) interaction scenarios are discussed. A distributed peer-to-peer Cloud architecture is suggested. The energy efficiency analysis of the proposed architectures shows its advantages.