To reach net-zero carbon emissions by 2050, the government has launched a second energy transition and is proactively developing a diverse range of renewable energy sources. A key area of focus is solar photovoltaic (PV) energy, particularly rooftop solar PV, which brings benefits such as thermal insulation, energy savings and the potential for generating extra income. This technology is well-suited to Taiwan's climate and supports the nation's transition to net-zero buildings. Currently, only 10% of private buildings with rooftop areas of 1,000 square meters or less have installed solar PV, indicating significant growth potential. In light of this, the Executive Yuan has approved the Residential Rooftop Solar Energy Installation Acceleration Plan (2025-2028), offering reward incentives to encourage public adoption, lower entry barriers, and enable rooftop solar PV to continue driving forward the development of renewable energy. The plan is expected to install an additional 1.2 gigawatts (GW) of capacity from rooftop systems, generate an additional 1.5 billion kilowatt-hours (kWh) annually, stimulate approximately NT$72 billion (US$2.2 billion) in industry investment and expand solar PV installations to 120,000 new households.
Implementation approach
The plan will allocate a total budget of NT$4.08 billion (US$125.5 million) over four years to provide incentives targeting solar PV businesses and homeowners with rooftops that have a surface area of 1,000 square meters or less. Each case can be awarded up to NT$300,000 (US$9,229), funded by the Ministry of Economic Affairs and distributed through local government implementation. In addition, local governments can increase the available incentives and streamline the application process.