The influence of renewable energy's generation efficiency and productivity changes on the economy has become an important topic. By reviewing previous literature, it can be found that there are rare discussions about renewable power in strategic emerging industries and the economic impact of renewable power generation. To fill the gap of the previous studies, this paper takes solar power generation as the research object and analyzes the influence of solar. The influence of renewable energy's generation efficiency and productivity changes on the economy has become an important topic. By reviewing previous literature, it can be found that there are rare discussions about renewable power in strategic emerging industries and the economic impact of renewable power generation. To fill the gap of the previous studies, this paper takes solar power generation as the research object and analyzes the influence of solar power generation efficiency on economy. This paper empirically collects data of 20 countries from 2010 to 2016 to discuss the influence of solar power generation efficiency and economic performance on the scale of solar power generation in each country. The empirical results show that when a country's solar power generation efficiency increases, the solar generation scale of the country will increase, indicate that the efficiency of solar power generation has a significant positive influence on the scale of solar power generation. Besides, it also concomitantly has the benefit of boosting the growth of solar power storage in the country. In other words, when the production efficiency of renewable energy is improved, it can effectively promote the development of energy storage and bring benefits for sustainable development.••Solar generationEfficiencyEconomic performanceSupply elasticitySince 21st century, the international community has paid increasing attention to the development issues, such as safeguarding energy security, dealing with climate change, and protecting the ecological environment. Under the efforts of the United Nations Framework Convention on Climate Change (UNFCCC), countries have jointly implemented a number of climate agreements. For example, the Copenhagen Protocol, agreed in Copenhagen in 2009, replaces the Kyoto Protocol, which expires in 2012,United Nations Framework Convention on Climate Change. The Paris Agreement which adopted at the UUNFCCC in 2015 and was signed by the international community in New York in 2016. These international agreements jointly provide a standardized guideline for improving global greenhouse gas emissions and energy use. In this context, countries that emit greenhouse gases are responsible for reducing greenhouse gas emissions in varying degrees. How to adjust the impact of emission reductions on economic development has become an important issue that all countries in the world have to face. Accelerating the transformation of energy has become the universal consensus and concerted action of countries. The development of renewable energy has become an important part of this energy transformation. In addition, with the rise of environmental awareness in recent years, different countries have realized that the development of renewable energy can not only soothe climate change, but also encounter so. Different from hydropower and nuclear power, the new generation of renewable energy, represented by wind power and photovoltaic power generation, has intermittent characteristics because it is unstable and unpredictable due to weather conditions. This is reflected not only in the limited duration of power generation, but also in the instability of power generation period and non-anthropogenic control, Ma and Zhao. Nevertheless, the power industry has high requirements for the reliability of power supply, and the power system needs to transmit electricity power according to the needs of users at any time. This requires the power system to have sufficient electricity power supply at all times to meet the needs of consumers. Power outage and power limitations often cause huge losses. Although the increase of renewable energy generation capacity will reduce the electricity price, its discontinuity leads to the risk of electricity consumption, which has become one of the sources of imbalance between supply and demand in the electricity market. Due to the fact that renewable energy generation is intermittent and difficult to adjust electricity generation to market signals, it is necessary to dispatch other power to make up for the difference between supply and demand caused by its instability,. The cost of grid-connected integration becomes significant with the increase of installation scale. Therefore, the intermittent feature of renewable energy supply and the complexity of transactions are the main factors affecting the scale of r. Method explanation and selectionThe theory and mode of efficiency measurement has always been an important subject in production economics or industrial economics. The concept of measuring the efficiency of individual firms was first proposed by Farrell. Farrell divides production efficiency into factors input and technical efficiency under a given output, as well as the allocation efficiency associated with optimal factor input allocation. Technical efficiency represents the ratio of elements amount used by a firm with full technical efficiency to the elements amount used in the actual situation under a given output. Allocation efficiency is the cost ratio of the factor input combination under the minimum output cost to the complete technical efficiency. Subsequently, in order to deal with the nature of research samples, research events, dynamic changes during the period and other factors, the method of efficiency measurement has gradually developed a variety of evaluation styles. In this kind of research field, different measurement methods have their own complete theoretical models, advantages and disadvantages, and can be roughly divided into parametric approach and non-parametric approach. The parameter method mainly estimates the boundary function by econometric method, and then estimates the efficiency value. Its characteristic is that the parameter approach must establish the hypothesis of.
