Tiếng ViệtLarge-scale solar installations could not only bring economic benefits but also slow the climate change, according to a new study published in the journal Nature. Scientists say that maximizing rooftop space for solar power systems could lower average global temperatures and reduce dependence on fossil fuels.
Recent research has shown that if rooftop solar power systems are widely deployed, the average global temperature could decrease by 0.05 to 0.13 degrees Celsius by 2050. This is a significant number in the context of the world’s efforts to find solutions to combat global warming.
A team of researchers from China, Germany, Italy and Sweden used geospatial data combined with artificial intelligence (AI) to estimate the total rooftop area that could be used for solar power installations, which amounts to 286,393 km² globally. If this area is effectively exploited, solar energy could become an important part of the world’s sustainable energy system.
In Vietnam, more and more enterprises are proactively investing in installing rooftop solar power systems, considering this an important strategy in optimizing energy costs and moving towards sustainable development. Large corporations such as Vinamilk have deployed a solar power system with a capacity of 3.39 MWp at the Super Milk Factory and 1 MWp at the Beverage Factory, helping to significantly reduce electricity costs and carbon emissions. Similarly, Nghia Nippers Company has installed a 2.23 MWp system in Cu Chi, producing more than 3,200 MWh of electricity per year and reducing emissions of more than 2,300 tons of CO₂. Duy Tan Plastics is no exception to this trend when deploying a 2.17 MWp system in Binh Duong, contributing to reducing more than 2,000 tons of CO₂ annually.
Installing solar power brings many benefits to enterprises, from saving on electricity costs to reducing greenhouse gas emissions, while enhancing brand image and meeting international environmental standards. According to experts, 1MWp of rooftop solar power can reduce more than 1,000 tons of CO₂ per year, equivalent to planting more than 17,000 trees.
However, the initial investment in solar power systems can be a challenge for some enterprises. To address this issue, the Power Purchase Agreement (PPA) model has been implemented, allowing enterprises to use clean energy without the need for initial capital investment. In this model, investors will be responsible for installing and operating the system, while enterprises only need to pay for the amount of electricity consumed at a reasonable price.