State Grid Quzhou Power Supply: Delivering precise support for corporate energy conservation, consumption reduction, and low-carbon development

Recently, the customer-manager team of State Grid Quzhou Power Supply Company walked into Zhejiang Horizon Instrument Transformers Co Ltd to "take the pulse" of the firm's electricity consumption and deliver a professional energy-efficiency solution. The initiative provides targeted help for saving energy, cutting consumption, and using electricity scientifically, injecting new momentum into the green transformation of the local economy.

[Photo provided to chinadaily.com.cn]

As a major electricity consumer in Quzhou, Zhejiang Horizon Instrument Transformers specializes in the R&D and manufacture of instrument transformers. Its precision production lines impose stringent requirements on power stability and power quality. The customer managers went deep into the workshops, mapping every power-consuming step of the process and inspecting critical equipment such as high-voltage switch-rooms, reactive-power compensation devices, and transformers. In response to the company's complaints about large load fluctuations and high electricity bills, the team merged grid-operation data with info on production characteristics to craft a bespoke "one-firm-one-policy" energy-efficiency upgrade plan. On-site testing revealed low power factors on some lines and unbalanced transformer loading; the managers proposed installing intelligent capacitor banks and redistributing loads to raise power-utilization efficiency.

[Photo provided to chinadaily.com.cn]

To promote rational and efficient use of electricity, the customer managers mined the firm's historical power data to pinpoint high-consumption links. For technical retrofits, they recommended replacing old transformers with high-efficiency, energy-saving models to cut no-load and load losses and eliminate energy waste. Taking advantage of the time-of-use tariff, they guided the company to reschedule production shifts, moving energy-intensive processes to the valley period — expected to shave more than 100,000 yuan ($14,052) off the annual electricity bill. These practical measures give the firm a clear roadmap for lowering costs and boosting efficiency.

The team also briefed Zhejiang Horizon on distributed-PV integration consulting, power-quality monitoring, and emergency-power configuration, and interpreted the latest market-trading rules under Zhejiang's electricity spot-market policy, helping the company optimize its procurement strategy and reduce energy costs. "The power-supply company's service couldn't be more timely," said Zhejiang Horizon's executive. "These professional suggestions not only cut our electricity expenses but also point the way to green development."

In recent years, State Grid Quzhou Power Supply has taken serving local economic growth as its primary mission, continuously deepening its service offerings. Through initiatives such as "Party-member service teams entering enterprises" and the "Energy-efficiency Diagnosis Special Action", it has provided energy-saving services to more than 100 local firms, driving more than 5 GWh in annual electricity savings. Moving forward, the company will further leverage its professional strengths, strengthen the application of power big-data, and deliver still more precise energy-efficiency solutions, accelerating the green and low-carbon transformation of industry and contributing grid strength to the attainment of the "dual-carbon" goals.