The wet FGD offers some advantages that are both straightforward and beneficial for prospective users. To start with, it is very cost-effective in comparison to traditional end-of-pipe technologies. For example, a 650 MW coal-fired power plant would need an investment of 460 million yuan (US $71 million) for desulfurization equipment; this can be halved under wet FGD systems. Second of all the wet FGD technology systems can be applied to units of all kinds. Scalers, emitters or air heaters in 300MW powerplant none are excluded. Wet Flue Gas Desulfurization System is used in more than 50% existing 200MW units throughout China. Third, wet FGDs cut emissions which serve as the base of many possible carcinogens. Moreover, it also reduces the risk on future legal action. Fourthly, improving air quality also means public health conditions in nearby communities are enhanced. In short, coal-fired power plants that cannot use wet desulphurization systems are replaced and their generation ends -- this decreases the number of instances where such victims die as well as reducing both overall fatalities and many deaths from diseases across a range of illnesses. Fifthly, it can convert waste into a valuable product -gypsum, which can be sold to the construction industry. In this way, the wet FGD process actually acts like recycling or perhaps even garbage composting next to your house. In addition to such recycling at power plants, of course some of the internal products are put back to good use as raw materials. Lastly, the system is reliable as well as economical, with low operating costs. This makes it an immediate and practical approach for Green Energy Sustainability in China's power industry.