Wusheng, Sichuan: Electrified sericulture, a road to wealth
On November 7, in the sericulture greenhouse of the Sericulture Modern Agriculture Park in Menshan Township, Wusheng County, Yang Junwei, a major sericulture farmer, poured fresh mulberry leaves into the machine, and the fully automatic machine started running “whirring” . After cleaning, sorting, chopping and other processes, the mulberry leaves were evenly scattered on the silkworm bed, and tens of thousands of silkworm babies kept squirming and happily enjoying their “big meal”.
“It is precisely because there is sufficient electricity that our equipment can be driven. This year we will also try to breed four-season silkworms and expand the production batches to 5 batches.” Yang Junwei told State Grid Wusheng County who came to inspect power equipment. Xiong Bin, Taiwan area manager of Feilong Power Supply Station, a power supply company, said.
Wusheng County has a long history of mulberry planting and sericulture, and is the third largest cocoon-producing county in Sichuan Province. In 2017, Wusheng County and Antai Group worked together to build a 30,000-acre modern sericulture industrial park in three years. After the Spring Festival of 2020, Wusheng County introduced support policies in various aspects such as base construction, labor employment, finance and insurance, and encouraged the adoption of a “company + base + farmer” business model to promote mulberry planting and silkworm rearing, and expand mulberry, silkworm chrysalis, and mulberry production. diversified operations such as branch fungi and understory breeding. This series of good policies has attracted a group of villagers working along the coast, such as Yang Junwei, to return to their hometowns to start businesses.
“Mulberry grows for three seasons and silkworms are raised for two seasons.” This has been a local breeding tradition for decades. Before returning to his hometown to set up a factory, Yang Junwei communicated with agricultural technology consultants on how to maximize profits. Both parties have been thinking about whether, in addition to reducing breeding costs, they can raise silkworms for a few more seasons.
“We can carry out large-scale breeding in greenhouses, shorten the cycle, and increase production batches.” The words of the agricultural technology consultant made Yang Junwei both excited and anxious. A greenhouse is calculated as 4,000 cubic meters, and uses air conditioners and other equipment with matching power. The electricity bill How much profit can you make after expenses? He quickly contacted Leshan Power Supply Station to inquire about the electricity policy.
Subsequently, Teng Changqing, director of Leshan Power Supply Station, modeled and analyzed the energy consumption of the greenhouse according to the parameters of the power equipment and space size in the greenhouse, simulated the electricity consumption of the smart greenhouse after it was put into operation, and put forward a proposal for electrified sericulture. . Preliminary calculations show that the annual electricity bill of the greenhouse should be 110,000 to 130,000 yuan, which can save about 200,000 yuan in cost compared with artificial breeding. Yang Junwei made up his mind to give it a try.
To build a breeding greenhouse, the power supply infrastructure must first be improved. The most urgent thing is to install two 630 kVA special transformers. Teng Changqing assisted Yang Junwei in submitting the application materials for the new installation. The Taiwan District Manager followed the entire process and urged the Wusheng County Power Supply Company to quickly review the power supply plan and send technicians to guide the electrical construction. Before the greenhouse was completed, the power supply equipment was put into operation as scheduled.
After the greenhouse was built, the Taiwan District Manager relied on power big data to provide Yang Junwei with “one household, one policy” energy usage suggestions, assisting him in analyzing and managing electricity costs, and reminded customers to use more electricity during low electricity price periods to reduce costs. Operating costs. At the end of 2021, the greenhouse energy consumption analysis report showed that the difference between the final electricity bill of the silkworm breeding base and the previous model analysis was less than 7%, which made Yang Junwei even more confident.
At the beginning of this year, Yang Junwei successively introduced new smart silkworm breeding equipment and a mulberry garden drainage and irrigation system that integrate mulberry uniformity, disinfection, mulberry feeding, netting, and sand removal to create an all-electric breeding base.
With more equipment, the power requirements are naturally higher. The Taiwan District Manager monitors the powerquality of the silkworm breeding base in real time. During key periods such as the breeding period of male moths, he often checks the operation of electrical equipment to eliminate hidden dangers in power supply in a timely manner to ensure The power supply is stable and reliable.
With the help of Wusheng County Power Supply Company, the benefits of electrified sericulture have been highlighted. In 2021, the average annual profit of more than 10 large sericulture farmers in Mengshan Township exceeded 170,000 yuan, and the operating profit of Yang Junwei’s sericulture base reached 250,000 yuan that year. “Electrified sericulture under constant temperature and humidity conditions results in high-quality silkworm seeds, which can be produced 10 days earlier than before. The supply of silkworm seeds exceeds demand.” Yang Junwei said that he plans to add two more steel structure greenhouses.
After learning about Yang Junwei’s plan, Wusheng County Power Supply Company took the initiative to reserve sufficient space for the breeding base during line reconstruction. After the new greenhouse is completed, Yang Junwei’s silkworm seeds can not only be supplied to Wusheng locally, but can also be sold to surrounding cities such as Chongqing.
In addition to his own business being prosperous, Yang Junwei also led the villagers to get rich together. Today, there are nearly 20 villagers working in his breeding greenhouse, each earning nearly 30,000 yuan a year.
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