Disclosed is an apparatus and method for evaluating the economic feasibility of a distribution system according to the construction of a distributed solar power plant. The apparatus for evaluating the economic feasibility of a distribution system according to the construction of a distributed solar power plant according to an aspect of the present invention receives information on a benefit element and information on a cost element used for evaluating the economic feasibility of the distribution system according to the construction of a distributed solar power plant. An element input unit, a benefit calculating unit that calculates the benefits of the distribution system according to the construction of the solar power plant based on the benefit factor information, and a cost estimation unit that estimates the cost of the distribution system according to the construction of the solar power plant based on the cost element information. And an economy analysis unit that analyzes the economic feasibility of the solar power plant construction based on the government and the benefit value calculated by the benefit calculating unit and the cost value estimated by the cost estimating unit.
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