Abstract
In the context of the global potential energy crisis and aggravating regional environmental pollution, Chinese photovoltaic power generation still faces the key problems of sustainable development, even given its favorable background in large-scale exploitation. Scientific evaluation of the comprehensive efficiency of photovoltaic power generation is of great significance because it will improve investment decision-making and enhance management level, evaluate the development conditions of photovoltaic power generation and then promote sustainable development capability. The concept of “comprehensive efficiency” is proposed in this paper on the basis of the resource development of solar energy and exploitation of photovoltaic power generation. A system dynamics model is used to study the conduction mechanism of the comprehensive efficiency of photovoltaic power generation. This paper collects data from 2005 to 2015 as research models, establishes the evaluation model of the comprehensive efficiency of photovoltaic power generation and conducts empirical analysis based on a super-efficient data envelopment analysis (SE-DEA) model. With the evaluation results, this paper puts forward political suggestions as to the optimization of the comprehensive efficiency of photovoltaic power generation. The research results may provide policy-oriented references on the sustainable development of photovoltaic power generation and give theoretical guidance on the scientific evaluation and diagnosis of photovoltaic power generation efficiency.
Highlights
In recent years, faced with the slowdown of the global economy and energy consumption, the outputs of fossil fuel appeared to decrease; the data show that crude oil, natural gas and the raw coal account for 85.9% of primary energy consumption, among which crude oil accounts for 32.9%, and crude oil is still the most important energy source [1]
This paper reveals the influential factors of the comprehensive efficiency of photovoltaic power generation from the perspective of resource utilization, investment and construction and policy market and lays a solid foundation for the establishment of the input-output index of comprehensive efficiency
According to the conduction mechanism of comprehensive efficiency, we constructed the input-output index to evaluate the comprehensive efficiency of photovoltaic power generation on the basis of considering the acquirement of data
Summary
In recent years, faced with the slowdown of the global economy and energy consumption, the outputs of fossil fuel appeared to decrease; the data show that crude oil, natural gas and the raw coal account for 85.9% of primary energy consumption, among which crude oil accounts for 32.9%, and crude oil is still the most important energy source [1]. Influenced by the distribution of solar energy and reverse distribution of electricity demand, light discarding in the northwest and supply shortage in the southern area reveal the low comprehensive efficiency of the Chinese photovoltaic power generation industry [6,7]. Under the influence of climatic environment, installed capacity and on-grid energy of photovoltaic power generation is far from the ideal situation due to the bottlenecks of low systemic efficiency and high generation cost.
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