Hunan Changde 1120 LED Solar-Powered Street Lamps Installation Project
1. Project Background: Addressing Lighting Pain Points in Towns and Townships
Previously, the traditional high-pressure sodium lamps in Changde, Hunan had been in service beyond their expected lifespan, featuring high energy consumption and low lighting rate. Some villages and groups had no lighting at night, which affected the travel safety of villagers. In line with the "Rural Revitalization" and "dual carbon goals", the district government launched a lighting upgrade project, and finally completed the installation of 1120 LED solar-powered street lamps, achieving full coverage across the town.
2. Project Implementation: Precise Adaptation + Efficient Advancement
(1) Product Selection and Practical Application
Main Roads: 10-meter poles, 80W LED light sources, 120Ah lithium batteries, and 120W monocrystalline silicon solar panels were adopted. In actual use, they can keep lighting continuously for 5 days in rainy weather, meeting the demand for long-hour nighttime lighting.
Branch Roads: 7-meter poles, 40W LED light sources, 50Ah lithium batteries, and 80W solar panels were configured to balance lighting effect and cost, adapting to the road scenarios in village groups.
(2) Implementation Process and Difficulty Resolution
The project was completed in 3 phases over 45 days: 10 days for surveying and positioning, 25 days for grouped simultaneous installation of lamp poles and debugging of solar panels and light sources, and 10 days for network connection and acceptance. To address the problem of water accumulation on the muddy roads of some village groups during the rainy season, "gravel padding + concrete pouring" was used to reinforce the foundation; for road sections with complex underground pipelines, multiple departments were coordinated to conduct inspections and adjust positions to avoid damaging existing facilities.
3. Project Achievements: Significant Triple Benefits
Lighting Upgrade: The whole town has achieved "no dead ends at night." The illuminance of main roads reaches ≥20 lux, and that of branch roads reaches ≥15 lux, greatly enhancing the sense of security for villagers' nighttime travel and activities.
Cost Reduction and Carbon Emission Reduction: There is zero electricity fee expenditure, saving 200,000 yuan in annual electricity costs; the annual carbon emission reduction is 80 tons. Moreover, the LED light sources and lithium batteries have a long service life, and the maintenance cost is 70% lower than that of traditional street lights.
Facilitation of Governance: The incidence of public security cases at night has dropped by 80%. The street lights provide lighting for cultural activities in the village square, enriching the spiritual life of villagers.
4. Project Summary
With "demand matching + quality control," the project has achieved triple benefits in people's livelihood, environmental protection, and economy. It has become a typical case of green lighting upgrading in towns and townships of Dingcheng District, and its experience can be replicated and promoted.
