Abstract: The planning, layout characteristics and existing problems of solar power development in China are introduced. Based on the output characteristic index of PV generations, the new requirements of large-scale PV power integration is analyzed on the power system planning, and the analytical method of solar power accommodation is proposed. According to the planning targets of solar power generation of the “12th Five-Year Plan” period in the northwestern region, the solar power accommodation capacity of the northwest grid is studied. It is predicted that by the year of 2015, the installed solar power capacity in the northwestern region will reach 13.2 GW, and the balancing capability of the local power grid can’t meet the accommodation requirement of such new energies as PV and wind power. Trans-region balance is therefore needed for accommodation of new energy.

Key words: power planning, solar power generation, layout, accommodation