The UAE boasts some of the world’s highest solar irradiance levels, averaging 2,000–2,300 kWh/m² annually, with peak sun hours around 5.5–6.5 per day. This positions the country ideally for photovoltaic (PV) systems.
Government initiatives drive adoption:
Electricity tariffs remain subsidized but are rising. Solar offsets these effectively with falling panel costs and high yields making ROI compelling.
Return on Investment (ROI) measures profitability over the system’s lifetime (typically 25–30 years).
Basic ROI Formula:
ROI = (Total Lifetime Savings - Initial Cost) / Initial Cost × 100
Payback Period: Time to recover initial investment via savings.
Payback Period (years) = Net Initial Cost / Annual Savings
| System Size | Approx. Cost (AED) | Annual Production (kWh) | Est. Annual Savings (AED) | Payback Period (Years) |
|---|---|---|---|---|
| 5 kW | 25,000–35,000 | 8,000–10,000 | 2,000–3,000 | 8–12 |
| 10 kW | 45,000–60,000 | 16,000–20,000 | 4,000–6,000 | 7–10 |
| 15 kW | 65,000–85,000 | 24,000–30,000 | 6,000–9,000 | 6–9 |
| Monthly Consumption (kWh) | Pre-Solar Bill (AED, approx.) | Post 10kW Solar Bill | Annual Savings |
|---|---|---|---|
| 2,000–4,000 | 500–1,000 | Minimal | 4,000+ |
| 4,000–6,000 | 1,200–1,800 | <500 | 6,000+ |
| >6,000 | 2,000+ | Near zero | 10,000+ |
| System Size | Cost/kW (AED) | Annual Savings (AED) | Payback (Years) | 25-Year ROI |
|---|---|---|---|---|
| 50 kW | 3,500–4,500 | 15,000–25,000 | 5–7 | 300%+ |
| 200 kW | 3,000–4,000 | 60,000–100,000 | 4–6 | 400%+ |
| 1 MW+ | <3,000 | 300,000+ | 3.5–5 | 500%+ |
| Scenario | Payback Period | 25-Year Net Savings (AED) |
|---|---|---|
| Base (No escalation) | 8 years | 80,000–100,000 |
| +4% Tariff Escalation | 6.5 years | 150,000+ |
| Lower Irradiance/Shading | 10 years | 60,000 |
| With Battery | 9–11 years | 120,000+ (plus resilience) |
Contact Watts & Ergon today for a free, no-obligation consultation and personalized Solar ROI report.
Website: wattsergon.com
Email: info@wattsergon.com
Watts & Ergon – Powering a Sustainable UAE
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