Due to the decrease of subsidies, the newly installed capacity only increases by 7.8%. By the end of 2018, the total installation of distributed solar PV generation is 50.62 GW as showed in Fig. 1, nearly 0.2% of the final energy demand in the Chinese domestic sector.
Residential solar photovoltaic (PV) installations have boomed in China over recent years. However, knowledge about the economic performance of residential PV investments is still limited. Therefore, this study attempts to make a complete economic assessment of residential PV systems at the county-level.
Chinese government has implemented a range of initiatives which aim at increasing the share of residential solar PV generation in the energy mix. Following policy incentives are listed from 2009 to 2018, and mainly pivoted on financial incentives.
However, there is increasing uncertainty in the market about the future of residential solar in China once the current program is phased out next year, which means that the residential segment will also be included in the grid-parity umbrella, as is the current status of commercial and utility installations.
As the initial cost of PV investments keeps declining rapidly, however, residential PV installations began to speed up gradually. The newly installed capacity of residential PV systems in China in 2019 is 4.2 GW p, which is just following the annual addition to solar PV capacity of the U.S., India, Japan, Vietnam, or Spain (REN21, 2020).
Toward this end, the country makes all efforts to develop renewables including solar photovoltaic (PV) generation. As a result, China has become a leader in the production and installation of PV equipment in the world since 2013 (REN21, 2014, 2020).
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