Eco-friendly Sahiwal power plant addressing energy woes
Sahiwal power plant in Punjab, a major energy project under the China-pakistan Economic Corridor, has been addressing the energy woes for Pakistan over the years besides meeting all local and international environment protection standards.
Sprawling over hundreds of acres of land, the power plant has clusters of flowers blooming along its driveways, lush green grass and fruit-bearing mango and guava trees which not only give an enchanting view to the onlookers but also highlight its eco-friendly nature. The plant’s well-planned lakes glisten in the sunset with a group of ducks swimming in the water. The power plant reminds us that electricity generating systems across the country and the world should follow the concept of green development.
“Sahiwal Power Plant attaches great importance to the fulfilment of social responsibility for environmental protection,” Xu Yan’an, director of Corporate Culture Department of the power plant’s operator Huaneng Shandong Ruyi Energy, told Xinhua.
“It has adopted a series of strict environmental protection measures to minimise the degree of environmental pollution from waste gas, wastewater, particulate matter and noise, which has enabled the plant to keep emissions well below the national standards in Pakistan and those of the World Bank.”
Talking about energy efficiency, Nouman Ali, a mechanical engineer at the power plant, said the coalfired power plant was the first in the country to introduce supercritical technology to generate clean electricity. Thanks to the latest technology, the plant produces more electricity with less coal consumption, enabling it to protect the environment.
It has a system to control various emissions from the plant. Low NOX burners are used for nitrogen oxide emission control, whereas sulfur dioxide emission is reduced by a flue-gas desulfurization system, Ali said.
“So because of all these technologies, Sahiwal does not look like a typical coal power plant. It is very clean,” Ali said, adding that “before joining the power plant, my perspective was certainly that the coal power plants will be full of dust. And maybe the environment will not be very clean. But I will say that my belief was changed when I came here.”
The Sahiwal plant adheres to the classification processing of wastewater and multi-use of different kinds of water. For example, domestic sewage is used to irrigate fruit trees, Xu said, adding that after sewage treatment the indicators will meet all the requirements of environmental standards. “We have been trying to reduce and recycle sewage as much as possible,” he said. “The Pakistani government launched the ‘Ten Billion Tree Tsunami Programme’ in 2018, which coincides with the environmental protection concept of our power plant. Taking this opportunity, we have continuously expanded the scale of tree planting and the green area of the plant to improve the ecological environment,” Xu said, adding that more than 80,000 trees of over 100 varieties have been planted in the whole area, and 152,000 square meters of turf have been laid.
“This power plant is great. It is also famous for its agricultural production. We do have guava and oranges and also mangoes. You must have seen mangoes and oranges. Yes, we have such trees in our power plant,” said Ali. “And I remembered last year when it was the season of guava, all the fruits which were provided in our canteen was from our own trees. We do enjoy that.”