Comparison of cost savings between LED tunnel light and traditional sodium tunnel lights
Sodium lamp price reference:
400W sodium lamp with electrical appliances, RMB2500/set;
250W sodium lamp with electrical appliances, RMB1750/set;
100W sodium lamp with electrical appliances, RMB1550/set.
The initial installation cost of the sodium lamp is RMB3,675,000; from the second year, the annual maintenance cost of the sodium lamp is calculated as 10% of the initial installation cost, and the annual maintenance cost of the sodium lamp is RMB367,500;
The annual maintenance cost of LED is about RMB66,500;
Sodium lamps are generally replaced once in 5 years (the 3rd year), and LED lamps are not replaced for 5 years;
Electricity charges are based on RMB1.0/kWh, and lighting is 24 hours a day.
The annual saving of electricity costs is RMB 1.704 million, and the maintenance cost is saved by 301,000 yuan. The total annual cost savings is RMB 2.005 million.
Sodium lamps generally need to be replaced once in 2 years and 3 years. The cost of replacing sodium lamps is estimated to be RMB3.675 million. Therefore, the actual saving amount within three years after using LED tunnel lights is RMB200.5*3+RMB367.5=RMB9.69 million.
The five-year savings of LED tunnel lights is RMB200.5*5+RMB367.5=RMB13.7 million.
LEDs can be used continuously for 5 to 8 years. During the effective service life of LED tunnel lights, sodium lamps need to be replaced at least twice after removing the initial installation.