Renewable and sustainable energy with advancement in information and communication technologies bear huge expectations in power sector. Whereas, switching from traditional to networked power grid requires a long process. Currently, renewable energy (RE) injection into existing power systems is in transition state, which is a sophisticated and multidisciplinary task. In this article, RE integration engineering efforts are discussed that take a step ahead towards green energy. RE integration engineering refers to the controlling and configuring tasks regarding distributed power generation sources, information and communication technologies and dispatchable loads. An extensive literature review of this domain is conducted considering main objectives with associated constraints, techniques used and miscellaneous parameters that lead towards green energy. As with the induction of renewable energy sources (RESs) and utilization of microgrids (MGs), the power generation uncertainty factor is evolved which limits networked grid to operate within its full capacity and perceived advantages. In this study, an hierarchal conceptual framework is also presented that is hybrid in nature, i.e., adds functionalities of both centralized as well as distributed control to avoid bottle necks and complexities to minimize the power generation uncertainty effects. Furthermore, a brief discussion is provided keeping a broader perspective in forth coming power networks for eco-friendly smart cities. The focus of the discussion is on RE integration engineering in perspectives of precise forecasting problem, dynamic dispatch problem, demand responsiveness and market implications that tends to lead towards eco-friendly and power aware smart cities.

随着信息和通信技术的发展，可再生和可持续能源在电力领域寄予厚望。然而，从传统的电网切换到联网的电网需要很长时间。当前，向现有电力系统中注入可再生能源（RE）处于过渡状态，这是一项复杂而多学科的任务。在本文中，将讨论可再生能源集成工程的工作，这些工作将朝着绿色能源迈进。RE集成工程是指与分布式发电源，信息和通信技术以及可调度负载有关的控制和配置任务。考虑到主要目标以及相关的限制条件，对该领域进行了广泛的文献综述，使用的技术以及导致绿色能源的其他参数。与引入可再生能源（RESs）和利用微电网（MGs）一样，不断发展的发电不确定性因素限制了联网电网在其最大容量和可感知的优势下运行。在这项研究中，还提出了本质上是混合的分层概念框架，即，增加了集中控制和分布式控制的功能，以避免瓶颈和复杂性，以最大程度地降低发电不确定性的影响。此外，将进行简短的讨论，以在即将到来的生态友好型智慧城市电力网络中保持更广阔的视野。讨论的重点是从精确预测问题，动态调度问题，