Canon Thang Long Factory reduces electricity bill by nearly 11 billion dong per year

Company name: Canon Vietnam Co.,Ltd.
Operation Field: Office Equipments, Cameras
Address: Headquarter, Lot A1 – Thang Long Industrial Park Kim Chung commune, Dong Anh District, Ha Noi City, Vietnam
Project Summary: As one of three Canon factories invested in Vietnam with its large production scale, the determination of Canon Vietnam Co., Ltd. right after investing in the factory construction is the necessity of energy efficiency, aiming at reducing production costs and bringing economic efficiency not only to their own business but also to society.
Year of implementation: 2020

Status before implementation

have not invested in the system yet

Result

According to the energy audit records from 2015-2019, the total energy savings achieved by the plant is 30,806 mWh, equivalent to a saving of 54.3 billion VND in electricity bills (an average of nearly 11 billion VND/year). To achieve this result, the factory has applied both internal management solutions and solutions which requires low costs.

As for the internal management solution, the factory has insulated the heating equipment of the plastic injection molding machine and welding furnace to avoid heat loss to the environment and waste energy. Thanks to this solution, the temperature on the surface of the device has been significantly reduced (plastic molding machine from 1200C to 550C, welding furnace from 42~450C to 32~350C), the temperature is stored in the heating element of the device. In addition to saving energy and saving costs, this operation also reduces the depreciation of equipment by saving machine running time. At the same time, replace all conventional lights in the factory to energy-saving LED lights.

In addition, the factory has implemented a solution to interlock the light switch with the gas supply valve, when the light is off, the gas valve will be automatically locked. At the same time, the unit has also built a cold storage tank to operate at off-peak hours and use it at peak hours to reduce energy consumption in peak time zones to avoid overload.

Status before implementation

have not invested in the system yet

Result

According to the energy audit records from 2015-2019, the total energy savings achieved by the plant is 30,806 mWh, equivalent to a saving of 54.3 billion VND in electricity bills (an average of nearly 11 billion VND/year). To achieve this result, the factory has applied both internal management solutions and solutions which requires low costs.

As for the internal management solution, the factory has insulated the heating equipment of the plastic injection molding machine and welding furnace to avoid heat loss to the environment and waste energy. Thanks to this solution, the temperature on the surface of the device has been significantly reduced (plastic molding machine from 1200C to 550C, welding furnace from 42~450C to 32~350C), the temperature is stored in the heating element of the device. In addition to saving energy and saving costs, this operation also reduces the depreciation of equipment by saving machine running time. At the same time, replace all conventional lights in the factory to energy-saving LED lights.

In addition, the factory has implemented a solution to interlock the light switch with the gas supply valve, when the light is off, the gas valve will be automatically locked. At the same time, the unit has also built a cold storage tank to operate at off-peak hours and use it at peak hours to reduce energy consumption in peak time zones to avoid overload.

Result of the project: From 2015-2019, the total energy savings from solutions is 30,806 MWh, equivalent to 15%
Total investment costs:
Power saving: 30,806MWh
Cost savings: 11 billion VND/year
Payback time: 4,92 year