Solar energy has become a mainstay for many countries in mitigating or reducing the risks of climate change. This is recorded in the latest report from the United Nations Framework Convention on Climate Change (UNFCCC) released at the end of October 2022.
According to the UNFCCC report, by the end of October 2022, 166 countries had updated their Nationally Determined Contributions (NDCs). NDCs are commitments by countries to reduce carbon emissions and adapt to climate change.
Of all the new NDCs, the majority, or 49%, stated a commitment to developing photovoltaic solar power plants (PLTS) until 2030. This is done to reduce carbon emissions from the energy sector, which has hitherto relied on fossil fuels.
Meanwhile, those committed to developing the utilization of wind energy, geothermal energy, and nuclear energy are proportionally smaller, as seen in the graph above.
This condition is in line with the International Energy Agency (IEA) projection which states that solar energy will be the main pillar of the world's power plants in 2030.
Based on IEA data, in 2021 the installed capacity of photovoltaic PLTS worldwide had reached 892 gigawatts (GW). Then, based on existing national policies until October 2022 (stated policies scenario), global photovoltaic PLTS capacity will be increased to reach 3,020 GW in 2030, far exceeding other types of energy generation.
According to the IEA, solar energy is a mainstay for many countries because its utilization technology is relatively inexpensive.
"The price of photovoltaic modules has fallen by 80% over the past decade thanks to continuous innovation throughout the supply chain. Photovoltaic solar energy has become the most affordable electricity generation technology in many regions," said the IEA in its October 2022 edition of the World Energy Outlook report.
In the latest NDCs, the Indonesian government also stated a commitment to increasing the utilization of solar energy until 2030. However, Indonesia's latest NDCs have not detailed the target of installed capacity for PLTS to be built.