In 2016, SYNSUN reported a revenue of approximately $32,798,000 USD and a net profit of around $19,964,000 USD. At that time, international companies produced very few energy-saving motors, so most state-owned enterprises and large companies purchased motors from SYNSUN and sold them under their own brand names. During this period, SYNSUN Motor achieved significant success in Southeast Asia, with annual sales in Malaysia alone reaching nearly $19,964,000 USD.

Energy-saving renovation projects

1. Company A
   
   Company A replaced 156 original three-phase asynchronous motors used in circulating pumps, cooling towers, and fans, with a total power of 14,935 KW, with first-level energy-efficient variable frequency permanent magnet motors. The total investment for this upgrade was approximately $1,283,400 USD, resulting in an annual electricity bill savings of about $775,780 USD and an average energy savings of approximately 21%.
   
   This project involved modifying two cooling towers. Originally, each tower used a 30KW three-phase asynchronous motor connected to a reducer via a transmission shaft. The reducer drove four blades with an output of 215 N/min. The upgrade replaced this setup with a 30KW variable frequency permanent magnet direct drive motor, which directly drove the blades, eliminating the need for the reducer, transmission shaft, and three-phase asynchronous motor. An intelligent fully automatic system was then implemented to control the outlet temperature and adjust the motor speed for energy savings. The total cost for each unit, including the direct-drive permanent magnet motor, inverter control cabinet, and water temperature system controller, was approximately $8,556 USD, resulting in an energy saving rate of 25%. The total cost for the motor and controller was $1,169,320 USD.
   
   

2. Company B

   Company B undertook an energy-saving transformation for its circulating water pump. Previously, a 110KW three-phase asynchronous motor was used, operating at an actual load of about 70% and running 24 hours a day throughout the year. The project replaced this motor with a permanent magnet motor and upgraded the old pump to a new one, achieving an energy saving rate of 20%. The total investment for this transformation was $18,538 USD, resulting in an annual savings of $11,122 USD in electricity bills. The cost for the motor and controller amounted to $18,538 USD.
   
   

3. Company C

   Company C undertook an energy-saving transformation for six 280KW circulating pumps, which operated 24 hours a day throughout the year with a load of about 70%. The project involved replacing the existing three-phase asynchronous motors with permanent magnet variable frequency motors, upgrading the old pumps to new ones, and implementing an intelligent control system to manage flow and head. This upgrade achieved an energy saving rate of 20%. The total investment, including the cost of the motor and controller, was $243,846 USD, resulting in annual electricity bill savings of $142,000 USD.
   
   

4. Company D
   
   The company operates a single air compressor station that supplies production gas to various workshops and self-operated power plants. This station includes a total of eight air compressors from brands such as Ingersoll Rand, Sullair, and Liu Fuda. In May 2016, Jiangxi Hongwei Energy Glass signed an energy management contract with our company to implement a technical transformation and upgrade of their compressed air system. Our company provided funding for the energy-saving transformation, designed energy-saving solutions, configured the necessary equipment, and managed the project construction. The customer is responsible for maintenance during the five-year contract period. Throughout this period, both parties share the energy savings benefits according to an agreed proportion. After five years, our company will transfer ownership of all energy-saving equipment to the enterprise, and no further energy savings benefits will be charged.

   After the project implementation and subsequent acceptance, the energy-saving rate reached 36%. This achievement translates to an annual energy consumption reduction of 5.1 million kWh and annual savings of $456,320 USD in energy expenses (excluding indirect benefits such as maintenance and management fees). The power of each unit was 2000 kW, and the total cost for the motor and controller was $1,397,480 USD.
   
   

5. Company E
   
   Company E, a major chemical enterprise, established in February 2006 with a total investment of $142,600,000 USD, the company boasts a production capacity of 300,000 tons/year of acrylic acid and 160,000 tons/year of acrylic esters, with sales reaching $57,000,000 USD.

   In August 2016, our company undertook the renovation of the water pumps for the first and second phase circulating water systems. Following the renovation, the data for each circulating water system met the contract requirements. The renovation involved installing a total of 16 motors, each with a power rating of 2100 kW. This upgrade resulted in an annual electricity savings of 11.34 million kWh, translating to an $1,140,8000 USD reduction in electricity costs for the company. The power-saving effects before and after the technical transformation are as follows

   
   

   
   

   
   

6. Company F
   
   The main circulating water pump for the high-temperature and high-pressure dyeing machine was originally equipped with a 230 kW asynchronous motor operating at variable frequencies. The actual operating speed ranged from 1000 to 1450 r/min, with a rated efficiency of 93.6%, an actual operating efficiency of 70%, a rated power factor of 0.86, and an actual operating power factor of 0.68. The motor’s actual operating power was between 20 to 10 kW, with a daily power consumption of approximately 360 kWh.

   The upgrade replaced this motor with a high-efficiency 30 kW three-phase permanent magnet synchronous motor. The new motor has a rated efficiency of 96.2%, an actual operating efficiency of 92%, a rated power factor of 0.95, and an actual operating power factor of 0.90. After 60 days of operation, the energy consumption of the high-efficiency motor was reduced by 15% compared to the original asynchronous motor, saving 54 kWh of electricity per day. The dyeing machine operates for 330 days a year, and with an electricity cost of $0.11 USD per kWh, the annual electricity cost for the high-efficiency motor is approximately $1,905 USD.

   The savings on electricity are substantial, and the additional cost of purchasing the high-efficiency motor compared to the asynchronous motor can be recovered within the same year through electricity savings. The total cost for the motor and controller was $2,852 USD.
   
   

7. Company G
   
   The secondary fan for Furnace #2 originally used a 160 kW asynchronous motor operating under variable frequency. This motor was replaced with a 160 kW permanent magnet synchronous motor, and the performance was evaluated under the same working conditions for one month. The original asynchronous motor consumed an average of 60 kWh per hour, totaling 1440 kWh per day. In contrast, the permanent magnet synchronous motor consumed an average of 50 kWh per hour, or 1200 kWh per day.

   After the transformation, the new motor saved 10 kWh of electricity per hour and 240 kWh per day. This represents a 16.7% reduction in energy consumption compared to the original asynchronous motor. With the motor operating 330 days a year and an electricity cost of $0.07 per kWh, the annual savings amount to $6,211 USD. The significant reduction in electricity costs allows the additional investment in the permanent magnet synchronous motor to be recovered within the same year. This upgrade not only decreases the unit's electricity expenditure but also reduces emissions and pollution, contributing positively to energy conservation efforts.

   The total cost for the motor and controller was $4,278 USD.
   
   

8. Company H
   
   The No. 2 mixer for the high-concentration bleaching tower of pulp was originally driven by a 30 kW three-phase asynchronous motor and an imported Sulzer reducer. The mixer operated at an impeller speed of 242 RPM with a reducer ratio of 6.09:1. The imported reducer, costing nearly $14,260 USD, required frequent repairs or replacement, often within a year.

   Following the transformation, the system was upgraded to a 30 kW permanent magnet direct-drive synchronous motor. This motor maintains a speed of 242 RPM, with a rated efficiency of 94.1% and a rated power factor of 0.968. The transformation eliminated the need for a reducer, saving on both purchase costs and maintenance expenses, while also enhancing overall transmission and production efficiency.

   After 30 days of operation, data comparisons showed that the permanent magnet direct-drive synchronous motor achieved an average power saving rate of 17% compared to the original asynchronous motor. With the motor operating at 30 kW for 24 hours a day over 330 days a year, the annual operating hours total 7920. This results in an annual power saving of approximately 24,908.4 kWh. At an industrial electricity rate of $0.13 cents per kWh, this equates to a savings of $3,196 USD per year. Additionally, the reduction in maintenance and repair costs amounts to more than $14,260 USD.

   The use of the permanent magnet direct-drive motor significantly reduces energy consumption, improves resource utilization efficiency, and offers substantial social and economic benefits.

   The total cost for the motor and controller was $4,278 USD.