Owing to the reverse distribution of energy supply and demand

and the different economic development levels in different areas in China

it's important to optimize trans-regional and trans-provincial transmission power to realize the global optimization of the generation sources in the wider areas of the whole country. The point-arc-model based path-optimization model for trans-regional and trans-provincial electricity trade taking into account multi-component clean energy is developed based on the different optimization targets

including maximum social benefits

minimum loss costs

and maximum volume

and realizing the electricity-trading-path optimization with constraints such as the period coupling

volatility and the transmission channel capacity

etc. The trans-regional and trans-provincial arc-path optimization model is also proposed to solve the difficult power-ring-routing optimization problem in the point-arc model. The simplified network model based on the backbone ultra-high-voltage power grid of China is adopted to implement the calculation that proves the validity of the proposed model and algorithm.