With the rapid development of hydropower transmission scale in the Electricity Transmission from West to East

more pressure for hydropower absorption has imposed on the receiving-end power grids. There exist new challenging problems including absorption difficulty in light load hours

peak load gambling among power grids

multi-objective coordination between hydropower absorption and peak regulation

etc. These issues seriously restrict large-scale hydropower transmission and optimal configuration. To cope with them

this paper analyzes the main characteristics of inter-provincial hydropower transmission in China. With the focus on the hydropower absorption and peak regulation

this paper elaborates the development process of hydropower absorption and the solution strategies and technical ways in different stages of hydropower absorption. On the other hand

four kinds of methods for peak operations are also summarized. Moreover

the researches about peak regulation for multiple power grids are reviewed. The key theory and several technique problems facing hydropower absorption are proposed and some suitable technical advices are given.