Summary
A 7 m, 40 W SOLAR TODO solar streetlight system with 2 days autonomy and 2,859 poles delivers 1,043,535 kWh/year and $125,224 annual savings. Verified turnkey price is $759,067, with FOB $588,954 and CIF $664,340, enabling a 4.9-year payback over a 12-year design life in temperate climates.
Key Takeaways
- Use the verified 7 m, 40 W SOLAR TODO solar streetlight configuration (2,859 poles, 6000 lm each) to standardize tenders and ensure compliance with CJJ 45-2015 and IEC 60598.
- Compare three-tier pricing precisely: FOB $588,954, CIF $664,340, and turnkey $759,067 to align procurement strategy with logistics and local labor conditions.
- Leverage the 1,043,535 kWh/year energy yield and $125,224 annual savings to justify a 4.9-year payback across a 12-year system lifespan in financial models.
- Specify Mono PERC 70 W panels, 640 Wh LFP batteries (576 Wh usable), and MPPT 12 A controllers to guarantee 2 days autonomy at 238 Wh/day per pole.
- Maintain 21 m pole spacing with 7 m hot-dip galvanized steel poles (84 kg) to meet typical collector road lighting levels in temperate climate zones.
- Utilize smart features (motion sensor, timer, smart dimming) to cut nightly energy use while maintaining 6000 lm peak output where and when needed.
- Include full equipment BOM (2,859 units each) with unit prices from $6 to $64 to keep CAPEX transparent and avoid scope gaps in EPC contracts.
- Plan O&M around IP65 luminaires, 25-year panel, 8-year battery, and 5-year LED warranties to maintain performance and control lifecycle costs.
Solar Streetlight Turnkey Solution Overview
SOLAR TODO’s 7 m, 40 W solar streetlight system delivers 6000 lm per pole, 2 days autonomy, and 1,043,535 kWh/year savings across 2,859 units, with a verified turnkey cost of $759,067 and a 4.9-year payback. This configuration is optimized for temperate climate zones and fully off-grid operation.
For municipal and industrial buyers, the core problem is delivering compliant roadway lighting without grid extension costs, which can reach $2,000–$10,000 per pole according to industry benchmarks. Off-grid solar streetlights remove trenching, cabling, and substation upgrades while providing predictable CAPEX and OPEX. According to IEA (2024), outdoor lighting can account for 15–20% of municipal electricity use, making solar streetlighting a high-impact decarbonization lever.
SOLAR TODO’s configuration is based on real engineering data, including exact component counts, three-tier pricing, and a quantified ROI model. This case study translates that proposal into a repeatable blueprint for global deployments.
Technical Deep Dive: System Architecture and Specifications
Core Lighting and Power Components
The verified configuration uses the following key specifications:
- LED power: 40 W
- Luminous flux: 6000 lm
- Efficacy: 150 lm/W
- Solar panel: 70 W Mono PERC
- Battery: 640 Wh LFP (576 Wh usable)
- Daily energy use: 238 Wh
- Autonomy: 2 days
- Controller: MPPT 12 A
- Pole: 7 m hot-dip galvanized steel, 84 kg
- Ingress protection: IP65
- Design standards: CJJ 45-2015 / GB/T 24827 / IEC 60598
- Smart features: Motion sensor, timer control, smart dimming
According to NREL (2024), modern LED streetlights can reduce energy use by 50–70% versus legacy sodium lamps. Here, the 150 lm/W efficacy and 6000 lm output position the 40 W module squarely in the high-efficiency segment, suitable for collector roads, industrial campuses, and large parking areas.
Verified Equipment List and Costs
All quantities and prices below are from the engineering proposal and must be treated as fixed reference values.
| Item Name | Quantity | Unit Price (USD) | Total (USD) |
|---|---|---|---|
| 단결정 PERC 태양광 패널 (Mono PERC Solar Panel) | 2859 | 6 | 17154 |
| 40W 고효율 LED 조명 모듈 (High-Efficiency LED Module) | 2859 | 18 | 51462 |
| LFP 리튬 배터리 팩 (LFP Lithium Battery Pack) | 2859 | 64 | 182976 |
| MPPT 충방전 컨트롤러 (MPPT Charge Controller) | 2859 | 12 | 34308 |
| 7m 용융아연도금 강철 폴대 (Galvanized Steel Pole) | 2859 | 40 | 114360 |
| 스마트 제어 유닛 (Smart Control Unit) | 2859 | 16 | 45744 |
| 기초 공사 자재 (Foundation Materials) | 2859 | 50 | 142950 |
This bill of materials (BOM) covers the complete hardware stack from PV generation to structural foundations. For procurement teams, the per-unit pricing (e.g., $64 per LFP pack, $40 per pole) simplifies benchmarking against alternative suppliers while preserving the validated energy and autonomy performance.
Three-Tier Pricing Structure
To support different contracting models (supply-only, supply + logistics, full EPC), SOLAR TODO provides three verified price levels for the complete 2,859-pole system:
| Pricing Level | Description | Total Price (USD) |
|---|---|---|
| FOB (Ex-Works) | Factory delivery, buyer handles shipping and import | 588,954 |
| CIF (Port Delivery) | Includes international freight and insurance to destination port | 664,340 |
| Turnkey (Installed) | Fully installed and commissioned system | 759,067 |
These values are fixed from the engineering proposal and should be referenced directly in RFPs and internal business cases. The turnkey delta over CIF covers local installation, foundations, and commissioning.
Energy Performance and Autonomy
The system is engineered for a temperate climate zone with the following performance metrics:
- Daily energy consumption per pole: 238 Wh
- Battery capacity per pole: 640 Wh (576 Wh usable)
- Autonomy: 2 days (cloudy weather, no charging)
- Annual system energy yield: 1,043,535 kWh
- Annual savings: $125,224
- Payback period: 4.9 years
- System lifespan: 12 years (design basis)
According to IRENA (2023), the global weighted-average LCOE for utility-scale solar PV has fallen to around $0.049/kWh, making solar competitive with or cheaper than fossil generation in most regions. By eliminating grid energy entirely for streetlighting, this system effectively locks in a stable, near-zero marginal cost for lighting over its lifetime.
Structural and Environmental Design
The mechanical design is optimized for durability and compliance:
- Pole height: 7 m
- Material: Hot-dip galvanized steel
- Weight: 84 kg per pole
- Typical spacing: 21 m
- IP rating: IP65 for luminaires and key electronics
- Applicable standards: CJJ 45-2015, GB/T 24827, IEC 60598
IEC 60598 defines safety and performance requirements for luminaires, ensuring appropriate ingress protection and electrical safety. According to IEC (2021), compliance testing covers mechanical strength, thermal behavior, and resistance to dust and water, which is critical for long-term reliability in outdoor environments.
Smart Control Features
The smart control unit per pole supports:
- Motion sensor-based adaptive lighting
- Timer-based scheduling (evening/midnight/early-morning profiles)
- Smart dimming (e.g., 100% at peak hours, 30–50% when idle)
While the customer’s configuration parameters indicate remote monitoring is not enabled, the local smart control still delivers energy savings and extended battery life. According to IEA (2022), adaptive streetlighting can reduce energy consumption by 30–50% versus static operation, which aligns with the 238 Wh/day design consumption for a 40 W luminaire.
Applications and ROI in Real Projects
Use Cases in Temperate Climate Zones
This configuration targets temperate climate applications where solar resource and ambient temperatures are moderate, reducing thermal stress on batteries and electronics. Typical use cases include:
- Municipal collector and secondary roads
- Industrial parks and logistics hubs
- University and corporate campuses
- Tourism zones and resort access roads
- Perimeter security lighting for critical infrastructure
The 21 m pole spacing and 6000 lm output are suitable for mid-level illumination requirements rather than high-mast highways. For smart city projects, SOLAR TODO’s solar streetlights can complement grid-powered smart poles, providing lighting in peripheral or expansion areas without new grid infrastructure.
ROI and Financial Metrics
The verified ROI analysis for the 2,859-pole system is:
- Annual energy produced/offset: 1,043,535 kWh
- Annual cost savings: $125,224
- Simple payback: 4.9 years
- System design life: 12 years
Over the 12-year period, cumulative savings can exceed $1.5 million, assuming stable tariffs. BloombergNEF (2024) notes that electricity prices in many markets have been rising faster than inflation, which would further improve the effective payback for fixed-cost solar lighting.
From a TCO perspective, the turnkey price of $759,067 covers all hardware and installation. With no grid energy cost, remaining OPEX is limited to periodic cleaning, visual inspections, and eventual battery replacement (aligned with the 8-year battery warranty).
Warranty and Lifecycle Planning
The system’s warranty structure is as follows:
- Solar panel: 25 years
- Battery (LFP): 8 years
- LED module: 5 years
LFP chemistry is well-suited for daily cycling and outdoor temperatures, with IEEE (2020) highlighting its improved safety and cycle life compared to older chemistries. For planning purposes, asset managers should budget for at least one battery refresh within the 12-year design window, while panels and poles will typically outlast the financial horizon.
Comparison and Selection Guide
Solar vs. Grid-Powered Smart Poles
For many cities, the choice is not “solar or smart,” but how to combine off-grid lighting with grid-powered smart infrastructure. SOLAR TODO offers both solar streetlights and 7-in-1 smart streetlight systems.
| Feature | Solar Streetlight (This Case) | Smart Streetlight (7-in-1) |
|---|---|---|
| Power source | 100% off-grid solar | Grid-powered (mains) |
| Pole height | 7 m | 8–10 m typical |
| LED power | 40 W, 6000 lm | 80–150 W |
| Functions | Lighting + local smart dimming | Lighting, 4K AI PTZ, sensors, PA, WiFi/5G, display, EV/USB |
| Autonomy | 2 days | N/A (grid) |
| Typical price | Turnkey $759,067 for 2,859 poles | $9,000–$24,000 per smart pole (config-dependent) |
| Best use | Roads, parks, industrial perimeters | City centers, campuses, transport hubs |
According to IEA (2023), integrated smart infrastructure can reduce urban CAPEX by consolidating multiple services on a single pole. The solar streetlight configuration complements this by extending coverage to areas where grid extension is uneconomic.
Matching the Verified Configuration to New Projects
When adapting this configuration to new sites, decision-makers should:
- Keep core specs (40 W LED, 70 W Mono PERC, 640 Wh LFP) for similar irradiance and usage profiles.
- Maintain 7 m pole height and 21 m spacing where road geometry and lighting standards are comparable.
- Use the three-tier pricing as a reference baseline, adjusting only for local civil works if scope changes.
- Preserve MPPT 12 A controllers and IP65 protection to ensure similar performance and reliability.
Where local standards differ, engineers can cross-reference CJJ 45-2015 and GB/T 24827 requirements with national lighting codes, ensuring that illuminance, uniformity, and glare limits are met.
Customer Configuration Parameters vs. Final Design
The customer’s initial configuration parameters specified:
- Quantity: 2,580 units
- LED power: 40 W
- Panel type: Mono PERC
- Pole height: 7 m
- Battery type: LFP
- Climate zone: Temperate
- Smart features: Motion, timer, dimming (no remote monitoring)
The final engineered proposal is based on 2,859 units with the same core technical stack. For procurement and engineering teams, this highlights a common pattern: initial concept counts are refined after detailed layout and road classification studies. The verified pricing and performance data in this case study apply specifically to the 2,859-pole configuration.
FAQ
Q: What does the turnkey price of $759,067 include for this solar streetlight project? A: The turnkey price of $759,067 covers supply, delivery, installation, and commissioning of 2,859 complete solar streetlight systems. It includes Mono PERC panels, 40 W LED modules, LFP batteries, MPPT controllers, 7 m galvanized poles, smart control units, and foundation materials, as defined in the verified equipment list and design specifications.
Q: What is the difference between the FOB $588,954 and CIF $664,340 prices? A: The FOB price of $588,954 covers ex-works supply from SOLAR TODO’s factory, with the buyer handling shipping, insurance, and import. The CIF price of $664,340 adds international freight and insurance to the destination port. Both prices apply to the full 2,859-pole system with the exact BOM specified in the proposal.
Q: How is the 4.9-year payback period for this system calculated? A: The 4.9-year payback is based on annual energy savings of $125,224 from replacing grid-powered lighting with 1,043,535 kWh/year of off-grid solar generation. Dividing the turnkey CAPEX of $759,067 by these annual savings yields approximately 4.9 years. This assumes stable electricity tariffs and typical operating hours for streetlighting in a temperate climate.
Q: What lighting performance does each 40 W, 6000 lm streetlight deliver? A: Each pole uses a 40 W high-efficiency LED module producing 6000 lm at 150 lm/W. With 7 m mounting height and 21 m spacing, this supports typical collector road and campus lighting levels. Compliance with CJJ 45-2015, GB/T 24827, and IEC 60598 ensures appropriate illuminance, uniformity, and safety for outdoor applications.
Q: How does the system achieve 2 days of autonomy with a 640 Wh LFP battery? A: Each pole’s battery has 640 Wh capacity with 576 Wh usable energy. Daily consumption is designed at 238 Wh through smart dimming and timer control. This means the battery can support roughly two full nights of operation without charging. The MPPT 12 A controller and 70 W Mono PERC panel then recharge the battery during normal solar conditions.
Q: What maintenance is required over the 12-year system lifespan? A: Maintenance primarily involves periodic visual inspections, cleaning of panels and lenses, and checking mechanical integrity of poles and foundations. LFP batteries carry an 8-year warranty, so at least one battery replacement cycle should be planned within 12 years. LEDs have a 5-year warranty; after that, lumen depreciation should be monitored and modules replaced as needed.
Q: How do the smart features reduce energy use while maintaining safety? A: Smart features include motion sensors, timer control, and smart dimming. The system can run at 100% output during peak traffic hours, then dim to 30–50% when no motion is detected or during low-traffic periods. This strategy lowers nightly energy consumption, extends battery life, and still provides full illumination when pedestrians or vehicles are present.
Q: Are these solar streetlights suitable for all global climates? A: This specific configuration is optimized for temperate climate zones, balancing panel size, battery capacity, and load. In harsher climates (very cold, very hot, or with extended cloudy periods), SOLAR TODO typically adjusts panel wattage, battery capacity, and autonomy days. For those regions, a customized design based on local solar resource and temperature data is recommended.
Q: What standards and certifications does the system comply with? A: The design references CJJ 45-2015 and GB/T 24827 for road lighting, and IEC 60598 for luminaire safety and performance. Components are designed to IP65 ingress protection. Buyers should also ensure local electrical and structural codes are met. International standards like IEC 61215 and IEC 61730 apply to PV module design and safety in comparable systems.
Q: How does this solar streetlight system compare to grid-powered smart poles in cost and function? A: This system focuses on efficient off-grid lighting at a verified turnkey cost of $759,067 for 2,859 poles, eliminating grid connection costs. Grid-powered smart poles from SOLAR TODO add cameras, sensors, WiFi, and displays, typically costing $9,000–$24,000 per pole. Many cities deploy both: solar for coverage and smart poles for high-value nodes.
Q: Can the configuration be scaled or adapted to different project sizes? A: Yes, the 7 m, 40 W, 70 W panel, 640 Wh LFP architecture is modular. While this case covers 2,859 poles, the same design can be scaled up or down, with layout and quantity adjusted to local road networks. However, all financial and performance figures in this case study apply specifically to the verified 2,859-unit configuration.
References
- IEA (2024): "World Energy Outlook 2024" – Analysis of global electricity demand and the role of efficiency in public lighting.
- IRENA (2023): "Renewable Power Generation Costs in 2023" – Global trends in solar PV LCOE and competitiveness versus fossil fuels.
- NREL (2024): PVWatts and Outdoor Lighting Research – Methodologies for estimating solar energy yield and LED streetlighting efficiency.
- IEC 60598-1 (2021): "Luminaires – Part 1: General requirements and tests" – Safety and performance framework for outdoor lighting products.
- IEC 61215-1 (2021): "Terrestrial photovoltaic (PV) modules – Design qualification and type approval" – Reliability testing requirements for crystalline silicon modules.
- IEC 61730-1 (2023): "Photovoltaic (PV) module safety qualification – Part 1: Requirements for construction" – Safety standards for PV modules.
- IEA (2022): "Energy Efficiency 2022" – Highlights the potential of adaptive streetlighting to reduce municipal electricity consumption.
- BloombergNEF (2024): "Global Power Market Outlook" – Analysis of electricity price trends and implications for distributed solar economics.
About SOLARTODO
SOLARTODO is a global integrated solution provider specializing in solar power generation systems, energy-storage products, smart street-lighting and solar street-lighting, intelligent security & IoT linkage systems, power transmission towers, telecom communication towers, and smart-agriculture solutions for worldwide B2B customers.