Solar Street Light Project Quotation Checklist: What Buyers Should Request

A solar street light quotation should contain enough technical and commercial information for buyers to compare complete systems under the same project conditions. A low unit price may hide a smaller battery, shorter full-power operation, lighter pole, fewer accessories, limited testing, or incomplete shipping costs.

Before requesting prices, municipalities, contractors, distributors, and project developers should define the installation location, road layout, operating schedule, wind conditions, required autonomy, and delivery scope.

The quotation should then connect the LED luminaire, solar panel, battery, controller, pole, foundation, accessories, documentation, warranty, and logistics into one clearly described solution.

Provide Complete Project Information

The accuracy of a quotation depends on the project information provided to the supplier. Generic requests, such as “send your 100W solar light price,” rarely yield technically comparable offers.

Buyers should provide:

• Installation country, city, or GPS coordinates

• Road width, length, and number of lanes

• Road type and traffic conditions

• Required pole height and expected spacing

• Proposed pole arrangement

• Nightly operating hours

• Full-power and dimming requirements

• Required cloudy or rainy backup nights

• Local temperature range

• Design wind speed

• Estimated order quantity

• Delivery destination

A qualified solar street light manufacturer should not select the solar panel and battery solely based on the nominal LED wattage. The configuration should be based on the installation location, operating schedule, local sunlight, and project lighting requirements.

The Global Solar Atlas, provided by the World Bank Group, provides access to solar resource and photovoltaic potential data for preliminary site assessment. Final sizing should also consider local shading, dust, temperature, rainfall, and installation conditions.

Request Measurable Lighting Performance

A professional quotation should identify the actual luminaire performance rather than rely solely on marketing wattage.

Request the following information:

• Actual LED input power

• Complete luminaire lumen output

• Luminous efficacy

• Optical distribution

• Color temperature

• Color rendering index

• IES or LDT photometric file

• Proposed mounting angle

• Average illuminance

• Minimum illuminance

• Lighting uniformity

The supplier should provide a photometric calculation based on the actual road width, pole height, spacing, luminaire model, and pole arrangement.

Statements such as “covers 30 meters” or “suitable for highways” are incomplete without road geometry and measurable lighting criteria. Two luminaires with the same wattage may produce different results because their lumen output, optics, mounting height, and beam direction are different.

Check the Solar Panel and Battery Calculation

The solar panel and battery should be sized according to the actual nightly energy demand and the weakest seasonal solar conditions.

The quotation should show:

• Solar panel rated power

• Panel voltage and current

• Panel dimensions and weight

• Battery chemistry

• Battery nominal voltage

• Battery capacity in ampere-hours

• Battery capacity in watt-hours

• Allowable depth of discharge

• Usable battery energy

• Required backup nights

• Battery aging allowance

• Temperature correction

• Estimated recharge time after poor weather

Battery capacity should be compared in watt-hours:

Battery energy in Wh = Battery voltage × Battery capacity in Ah

For example:

12.8V × 100Ah = 1,280Wh

The supplier should state whether the advertised rainy-day autonomy is calculated at full brightness or with reduced output. A claim of three or five backup nights is incomplete unless the hourly lighting profile is included.

Confirm the Controller and Nighttime Schedule

The controller manages solar charging, battery protection, LED switching, dimming, sensing, and optional remote communication.

The quotation should identify:

• Controller manufacturer and model

• MPPT or PWM charging method

• Maximum panel input voltage

• Maximum charging current

• LED output current

• Number of programmable time periods

• Brightness level for every period

• Motion-sensor settings

• Low-voltage protection

• Temperature protection

• Communication method where applicable

• Software or platform fees

Buyers should compare all quotations using the same schedule. A system operating at low brightness for most of the night should not be directly compared with one that provides higher output for longer periods.

Include the Complete Pole and Foundation Scope

A solar street light with a pole should specify the complete supporting structure, rather than listing only the pole height and wall thickness.

Confirm:

• Pole height and luminaire mounting height

• Steel grade

• Top and bottom diameter

• Wall thickness and taper

• Lamp-arm length and angle

• Solar panel bracket

• Base-plate dimensions

• Anchor-bolt diameter and length

• Design wind speed

• Galvanizing standard

• Powder-coating requirements

• Foundation reference drawing

The solar panel adds a wind-exposed area. The solar street light pole, panel bracket, flange, anchor bolts, and foundation must therefore be evaluated with the complete equipment configuration.

The final foundation should be checked for local soil bearing capacity, drainage, wind conditions, and construction requirements.

Clarify Accessories and Installation Responsibilities

Small accessories can delay installation when they are omitted from the shipment.

The quotation should state whether it includes:

• Solar panel brackets

• Lamp arms

• Anchor bolts and templates

• Nuts and washers

• Internal cables

• Waterproof connectors

• Fuses and protection devices

• Battery enclosures

• Controller boxes

• Installation tools

• Spare fasteners

• Commissioning support

Buyers should also confirm whether installation, supervision, training, or remote commissioning is included. When installation is excluded, the supplier should still provide drawings, wiring diagrams, controller settings, installation instructions, and acceptance procedures.

Define Testing and Documentation Requirements

Technical documents should cover the exact products and component configuration offered in the quotation.

Required deliverables may include:

• Product data sheets

• Photometric reports and IES files

• Battery test information

• Solar panel documents

• Electrical safety reports

• IP and IK test reports

• Pole material certificates

• Galvanizing inspection records

• Structural calculations

• Foundation drawings

• Quality inspection reports

• Packing lists

• Installation manuals

• Warranty documents

For larger orders, buyers should define sample approval, production inspection, pre-shipment inspection, and site acceptance procedures before paying the deposit.

Separate Product Price from Logistics Costs

The quotation should identify the selected Incoterms rule and the exact named location. The International Chamber of Commerce states that Incoterms rules help avoid misunderstandings by “clarifying the tasks, costs and risks” involved in delivering goods from sellers to buyers.

Buyers can review the official ICC Incoterms rules before agreeing on shipping responsibilities.

The quotation should be separated:

• Product price

• Pole and accessory price

• Packaging cost

• Inland transportation

• Export customs clearance

• Ocean or air freight

• Cargo insurance

• Destination-port charges

• Import duties and taxes

• Final delivery to the project site

FOB, CIF, DAP, and DDP quotations should not be compared as if they included the same costs, delivery points, or risk responsibilities.

Use a Standard Quotation Comparison Table

When a supplier leaves an item blank, buyers should request clarification rather than assume the component, document, or service is included.

Final Solar Street Light Quotation Checklist

1. Project location and road conditions are stated correctly.

2. Lighting performance is supported by a photometric calculation.

3. Panel sizing uses location-specific solar data.

4. Battery capacity is shown in both Ah and Wh.

5. Usable battery energy is defined.

6. The complete hourly lighting schedule is included.

7. Rainy-day autonomy assumptions are stated.

8. The controller model and functions are listed.

9. Pole and foundation specifications are complete.

10. Accessories and spare parts are itemized.

11. Certificates match the offered models.

12. Inspection and acceptance procedures are agreed upon.

13. Packaging and container loading are confirmed.

14. The Incoterms rule and the named delivery location are clear.

15. Warranty and claims procedures are provided in writing.

FAQ

What Information Is Needed for an Accurate Solar Street Light Quote?

The supplier needs the installation coordinates, road dimensions, pole height, operating schedule, backup-night requirement, temperature range, wind speed, project quantity, and delivery destination.

Why Do Quotations for the Same Wattage Differ So Much?

The products may use different lumen outputs, batteries, solar panels, controllers, pole structures, dimming schedules, accessories, warranties, and test documents.

Should Buyers Compare Battery Capacity in Ah or Wh?

Watt-hours provide a more useful comparison because they include both battery voltage and ampere-hour capacity. Usable energy should also be confirmed.

Should the Foundation Be Included in the Quotation?

The supplier should at least provide the pole base, anchor bolts, installation template, and foundation reference drawing. Concrete construction may be quoted separately according to local site conditions.

What Should Be Confirmed Before Paying the Final Balance?

Buyers should review inspection results, quantities, controller settings, product documents, certificates, packing lists, packaging photographs, warranty terms, and corrective actions for any identified defects.

Conclusion

A complete solar street light quotation should explain how the luminaire, panel, battery, controller, pole, foundation, accessories, testing, warranty, and logistics work together.

Buyers should compare suppliers using one standardized technical and commercial checklist rather than relying on nominal wattage or unit price.

Clear project information, measurable lighting requirements, transparent energy calculations, complete structural specifications, and defined delivery responsibilities reduce procurement risk and help ensure that the installed system performs as expected.