  The overall performance of the development of computing systems has been
engrossed on enhancing demand from the client and enterprise domains. but, the
intake of ever-increasing energy for computing systems has commenced to bound
in increasing overall performance due to heavy electric payments and carbon
dioxide emission. The growth in power consumption of server is increased
continuously, and many researchers proposed, if this pattern repeats
continuously, then the power consumption cost of a server over its lifespan
would be higher than its hardware prices. The power intake troubles more for
clusters, grids, and clouds, which encompass numerous thousand heterogeneous
servers. Continuous efforts have been done to reduce the electricity intake of
these massive-scale infrastructures. To identify the challenges and required
future enhancements in the field of efficient energy consumption in Cloud
Computing, it is necessary to synthesize and categorize the research and
development done so far. In this paper, the authors discuss the reasons and
problems associated with huge energy consumption by Cloud data centres and
prepare a taxonomy of huge energy consumption problems and its related
solutions. The authors cover all aspects of energy consumption by Cloud data
centers and analyze many research papers to find the better solution for
efficient energy consumption. This work gives an overall information regarding
energy-consumption problems of Cloud data centres and energy-efficient
solutions for this problem. The paper is concluded with a conversation of
future enhancement and development in energy-efficient methods in Cloud
Computing
