With the increase in environmental consciousness and the shift towards renewable energy, solar powered street lights are slowly replacing traditional ones. But many investors are still skeptical: Is it really worth the money? We will answer that question through cost evaluation and return analysis.
1. Cost evaluation: solar street light vs traditional street light
Public solar lighting offers a one-time investment with practically no power costs during its lifetime, while traditional street lights incur monthly bills, cable costs, and maintenance fees. When these are calculated based on a 10-year usage period:
Traditional street lights: total cost in 10 years is approximately $1050, with an annual electricity fee of $75, initial installation of $200 and cumulative electricity costs of $500.
Solar powered street lights: total cost of $350, with $300 purchase price and only $50 battery replacement needed after 10 years. ✅ Conclusion: In 10 years time, Public solar lighting will save $700 per light.
2. Return on Investment (ROI)
The payback period of solar street lights is usually 2-5 years, depending on:
Electricity tariff: The higher the electricity price, the faster the payback.
Sunlight conditions: Sunny areas (such as the Middle East and Africa) are more efficient.
Battery type: Lithium batteries (lifespan 5-8 years) are more cost-effective than lead-acid batteries (2-3 years).
3.Long-term benefits
No expense electricity: Will not be compelled with increases in energy costs.
No electrical installations: Good for regions with poor grid connections.
Carbon emission friendly: May subsidized by the government.
4.Suitable situations
✅ Suggested Investment: Protected geographies, new development regions, areas with high electric costs.
❌ Use caution: Areas with extremely low electric costs or short-term engagements.
Summary: Solar street lights have a slightly higher initial investment, but long-term savings are significant, especially suitable for areas with sufficient sunshine or expensive electricity. Choose a high-quality lithium battery system, and the return rate will be more guaranteed.
Post time: Jun-05-2025