In 2023, the global industry of fixing solar panels to roofs witnessed explosive growth. The combined forces of policy support, technological upgrades and rising demand for clean energy accelerated the deployment of rooftop photovoltaic (PV) systems in residential, commercial and public buildings, becoming one of the core drivers of the global energy transition.
As a core scenario for distributed PV, fixing solar panels to roofs presented three key trends in 2023. At the policy level, many countries intensively introduced favorable policies: the UK simplified the approval process for rooftop PV installation, Ireland implemented a 0% VAT preference for residential solar supply and installation, and the United States allocated over 450 million US dollars to support rooftop solar and energy storage projects in Puerto Rico, greatly lowering the installation threshold.
In terms of installation volume, the global rooftop PV installed capacity hit a multi-year high. Data shows that the number of rooftop solar panel installations in the UK reached a 12-year peak in 2023, approaching 190,000 systems; India's rooftop solar installed capacity increased by 6.25% year-on-year to 1.7 GW; New York State in the United States completed the largest rooftop solar array in the state, equipped with more than 17,000 panels, with an annual power generation of 8.5 million kWh.
Technological upgrading became a highlight of the industry, and safer, leak-proof solutions for fixing solar panels to roofs were gradually popularized. Lightweight and low-load installation systems reduced the structural risks of old roofs, non-penetrating brackets and waterproof accessories minimized the hidden danger of leakage during installation, and building-integrated photovoltaic (BIPV) technology realized the integration of solar panels with roof materials, taking into account both practicality and aesthetics.
The commercial and industrial sectors became the main market for fixing solar panels to roofs, with factories, warehouses and public buildings successively promoting PV retrofits. Kimberly-Clark installed nearly 5,000 rooftop solar panels at its manufacturing plant in Indonesia, fire stations in New York City were equipped with rooftop PV + energy storage systems to improve emergency power supply capacity, and multiple megawatt-scale rooftop PV projects were launched in Chinese industrial parks to support green production.
Industry insiders said that the rapid development of fixing solar panels to roofs in 2023 provided important support for global decarbonization goals. In 2024, with the continuous innovation of installation technology and the decline of hardware costs, rooftop PV will become more popular and continue to release the potential of clean energy.
