Are there studies on solar PV power efficiency at the national level?

(1) There are few studies on solar PV power efficiency at the national level. Although solar PV generation is widespread and can provide electricity to meet the energy needs of economic development, few analyses have been conducted to assess solar PV power efficiency.

What are the indicators of solar PV power efficiency?

Solar PV installed capacity and solar PV generation are the most basic indicators of solar PV power efficiency. Therefore, we selected solar PV installed capacity, the cumulative number of solar PV patents, gross capital formation, and labor as input variables and solar PV generation as the output variable.

What is the importance of assessing solar PV power efficiency?

The importance of assessing solar PV power efficiency is of interest to the vast majority of economies. A country should measure solar PV power efficiency and keep related records. Therefore, this study used economic dimensions in its analysis. The remainder of the paper is organized as follows.

How does government policy affect solar PV power efficiency?

They also have relatively greater expectations of non-fossil-fuel energy generation, which will also increase the level of attention given to solar PV generation; furthermore, more government policies and researcher input will influence solar PV power efficiency , , . 3. Results and discussion

How does GDP per capita affect solar PV power efficiency?

GDP per capita is used to measure the level of economic development of different countries; the level of economic growth determines the country’s ability to invest in solar PV generation infrastructure development, which can affect solar PV power efficiency , , .

How is solar PV power efficiency measured?

A three-stage data envelopment analysis model assessed solar PV power efficiency. Solar PV power efficiency was measured for 26 countries from 2000 to 2020. The measurement of solar PV power efficiency was based on economic dimensions. Most of the countries with high average solar PV power efficiency are high-income.