Solar Street Light ROI & Carbon Calculator
Compare a solar street lighting scheme against a grid-powered one over its service life, and see the carbon it avoids. Every value below is editable — change any of them and the results update as you type.
Your project
EditableTariff, emissions and service-life assumptions
Payback
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10-year saving
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CO₂ avoided
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Cumulative cost of ownership
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Grid electricity not consumed, per year
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Mature trees absorbing CO₂ year-round
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Passenger cars taken off the road
Working on a real tender? Send us the road profile and location and we will return a costed configuration, with the assumptions above replaced by project figures.
Indicative estimate for early-stage screening. Regional defaults are broad averages and the result follows the values you enter — it is not a quotation, and not a basis for tender pricing or contract. Costs shown are undiscounted and exclude financing. Figures are rounded. Final quantities and pricing are confirmed in a formal technical proposal.
Regional default assumptions used by the calculator
| Region | Electricity tariff$ / kWh | Grid emission factorkg CO₂ / kWh | Grid scheme, installed$ / pole |
|---|---|---|---|
| North America | 0.12 | 0.35 | 4,000 |
| Europe | 0.20 | 0.25 | 3,500 |
| Latin America | 0.14 | 0.25 | 2,000 |
| Middle East & North Africa | 0.08 | 0.55 | 1,800 |
| Sub-Saharan Africa | 0.15 | 0.50 | 1,500 |
| South & Southeast Asia | 0.10 | 0.60 | 1,200 |
Broad regional averages for early-stage screening, not country-specific figures. The grid scheme column covers pole, luminaire, trenching, cabling and connection per light point, which varies widely with distance to the nearest connection point. Replace all three with local figures before using any result in a budget submission.