BEIJING, Oct. 7 (Xinhua) -- Beijing authorities said the city will complete energy conservation renovations on at least six million square meters of public buildings before the end of 2018.

Beijing has a total of 170 million square meters of public buildings that are considered inefficient in energy consumption. Most of these buildings were built in the 1980s and have remained operational through older means of energy consumption, according to the Beijing Municipal Commission of Housing and Urban-Rural Development.

These buildings use incandescent light bulbs and manually adjusted heating and refrigeration equipment, with no water conservation or recycling systems, and temperature control systems are inadequate, said the commission.

After the renovation, the public buildings will be equipped with LED lights and automatic light adjustment systems, as well as intelligent refrigeration and temperature control systems to reduce energy use.