| Improved item | Action | Description | Energy saved | CO2reduction |
|---|---|---|---|---|
| Cooling water pumps for steel making changed to inverter type | Water pressure meeting the requirement | Inverter replaced traditional on/ off control, adjusted cooling water pumps for steel making expansion area to meet the requirement and reduced electricity usage. | Saving of around 329,900 KWH / year | 167.88 ton/year |
| Increased total of 365HP efficiency for cooling water pumps for steel rolling and making | New pumps replacing old ones | Old ones have been working for over 30 years, the efficiency is more than 20% lower than the new ones. | Saving of around 798,600 KWH / year | 406.41 ton / year |
| LED lights are installed to replace the old ones in the first and second administration and union buildings. | New bulbs replacing old ones | Traditional bulbs needed 80W / bulb | Saving of around 139,100 KWH / year | 70.842 ton / year |