到目前为止，宽带服务主要通过固定（VDSL或光纤）或移动（3G或LTE）网络提供。然而，卫星网络现在能够提供与地面网络类似的带宽和响应时间的宽带服务，特别是引入了新的混合卫星网络，可以根据所需的带宽和响应时间选择替代路径。因此，能够评估卫星网络的能源效率并将其与能源效率进行等效比较是非常有用的 地面网络的效率。在卫星网络的设计中，能源效率也是一个越来越受关注的问题，人们越来越多地努力将卫星通信系统的能源消耗降至最低，尤其是在地面部分，在地面部分，大多数终端都被设计为始终在线运行。通过对卫星网络的能源效率进行评估，可以确定影响最大的子系统和组件，并注意降低其能源消耗。 特别是，鉴于运行中的卫星终端数量相对较多，它们的 可以将影响与其他子系统的影响进行比较，并采取适当措施提高其能源效率。

Up until now, broadband services have mainly been provided using fixed (VDSL or optical) or mobile (3G or LTE) networks. However, satellite networks are now becoming able to provide broadband services of similar bandwidth and response times to those from terrestrial networks, especially with the introduction of new hybrid satellite networks where alternative paths can be selected depending on the bandwidth and response times required. It is therefore useful to be able to assess the energy efficiency of satellite networks and compare this on an equivalent basis to the energy efficiency of terrestrial networks.Energy efficiency is also a growing concern in the design of satellite networks and there are increasing efforts to minimize the energy consumption of SatCom systems, especially in the ground segment where most terminals have been designed to operate on an always-on basis. By carrying out an assessment of the energy efficiency of a satellite network, the subsystems and components that have the most impact can be identified and attention paid to reducing their energy consumption. In particular, given the relatively large numbers of satellite terminals in operation, their impact can be identified compared with that of the other subsystems and appropriate measures taken to improve their energy efficiency.