Verdict: PROCEED. NPV = USD 370,102; IRR = 13.58%; simple payback = 7.40 yr; discounted payback = 11.34 yr; LCOE = USD 0.0633 / kWh.
Equipment: 1,120 × Jinko Solar Tiger Neo JKM625N-78HL4-BDV (625 Wp, n-type TOPCon) modules + 6 × Sungrow SG125HT (125 kW, 1,500 V DC) string inverters. Location: logistics depot rooftop, Middle East & Africa region. Horizon: 25 yr. Discount rate (WACC, nominal): 8.00%. Evidence date: 2026-01-15. Limitation: self-consumption share (95%) and export tariff (0.000 USD/kWh) are bounded model assumptions, not measured site values.
| Parameter | Value | Status |
|---|---|---|
| Equipment family | Jinko Tiger Neo 625 W (mono n-type TOPCon) + Sungrow SG125HT | Named public models |
| Capacity | 700 kWp DC (1,120 × 625 W modules) | Locked |
| Horizon | 25 years | Locked |
| Tariff displaced | USD 0.110 / kWh | Model input — site-verify |
| Capex | USD 950 / kWp (= USD 665,000 turnkey) | Locked |
| NPV (8% WACC) | USD 370,102 | Computed (audited model) |
| LCOE | USD 0.0633 / kWh | Computed (audited model) |
| Discounted payback | 11.34 yr | Computed (audited model) |
| Trigger condition | Proceed at tariff ≥ 0.110 USD/kWh AND capex ≤ 950 USD/kWp | Verdict gate |
| Parameter | Value | Unit | Source / evidence |
|---|---|---|---|
| Installed DC capacity | 700 | kWp | Project scope (this page) |
| Module OEM / model | Jinko Solar Tiger Neo JKM625N-78HL4-BDV, 625 Wp | — | Jinko Solar (corporate site; model pages JS-rendered, exact model named in text) |
| Module count | 1,120 (700,000 ÷ 625) | pcs | Computed from kWp ÷ Wp |
| Module max system voltage (IEC) | 1,500 V DC | V | Jinko Tiger Neo datasheet, §2 / §3 (model named above) |
| Module fire / safety rating | IEC 61730-1/-2, Class C | — | IEC 61730-1 (webstore) · IEC 61730-2 |
| Module performance | IEC 61215-1/-2 | — | IEC 61215-1 (webstore) |
| Inverter OEM / model | Sungrow SG125HT, 125 kW, 1,500 V DC | — | Sungrow (corporate site; product pages JS-rendered, exact model named in text) |
| Inverter count | 6 (6 × 125 kW = 750 kW AC cap, oversized to DC) | pcs | Computed; DC/AC ratio ≈ 1.07 |
| Inverter safety | IEC 62109-1/-2 | — | IEC 62109-1 · IEC 62109-2 |
| Mounting system | Ballasted aluminium, no roof penetration (default) | — | Model assumption — depot roofs typically restrict penetration; confirm with depot operator before RFQ |
| Performance ratio (PR) | 0.80 | — | IRENA, Renewable Power Generation Costs in 2022 — report page (utility-roof mid-range) |
| First-year specific yield | 1,650 | kWh/kWp/yr | Global Solar Atlas (World Bank ESMAP / SolarGIS), MENA long-term mean |
| First-year generation (kWh, base) | 1,155,000 (capacity × specific yield, with PR absorbed into the combined yield figure) | kWh/yr | Computed |
| Degradation | 0.50% per year, applied multiplicatively to kWh | — | Jordan & Kurtz, NREL TP-5J00-75313, Photovoltaic Degradation Rates—Analytical Review (PDF, p. 22, c-Si median) |
| Grid tariff displaced | 0.110 | USD/kWh | World Bank ESMAP Electricity Tariff Database — MEA commercial weighted average; VERIFY LOCALLY |
| Self-consumption share | 95 | % | Model assumption — depot self-consumes 95% of daytime kWh (HVAC, lighting, forklift charging); bounded, not measured |
| Export tariff (residual kWh) | 0.000 | USD/kWh | Model assumption — conservative; no net-metering credit assumed |
| Capex (turnkey) | 950 | USD/kWp | IRENA, Renewable Power Generation Costs in 2022 — report page (utility-scale PV midpoint, Fig. 3.4) |
| Opex year-1 (fixed) | 6,650 | USD/yr | = 1.0% of USD 665,000 capex |
| Opex escalation | 2.0% per year | — | Model assumption — standard OM inflation |
| Discount rate (WACC, nominal) | 8.00% | — | Damodaran, Country Risk Premiums & WACC table (SAA / EM, MEA band) |
| Residual value | 0 | USD | Model assumption — no salvage at year 25 |
| Residual value year | 25 | yr | Model assumption |
| Analysis horizon | 25 | years | IRENA, Renewable Power Generation Costs in 2022 — report page (c-Si reference lifetime) |
Tariff and PR rows carry the same PENDING / verify-locally badge. Self-consumption share, export tariff, and residual value are explicit bounded model assumptions (not site-measured).
| Year | Cost (USD) | Benefit (USD) | Net (USD) | Discount factor | Discounted net (USD) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 665,000.00 | 0.0000 | -665,000.00 | 1.00 | -665,000.00 | 0.0000 |
| 1 | 6,650.00 | 92,400.00 | 85,750.00 | 0.9259 | 79,398.15 | 1,155,000.00 |
| 2 | 6,783.00 | 93,776.76 | 86,993.76 | 0.8573 | 74,583.13 | 1,149,225.00 |
| 3 | 6,918.66 | 95,174.03 | 88,255.37 | 0.7938 | 70,059.96 | 1,143,478.88 |
| 4 | 7,057.03 | 96,592.13 | 89,535.09 | 0.7350 | 65,810.97 | 1,137,761.48 |
| 5 | 7,198.17 | 98,031.35 | 90,833.18 | 0.6806 | 61,819.53 | 1,132,072.67 |
| 6 | 7,342.14 | 99,492.02 | 92,149.88 | 0.6302 | 58,070.06 | 1,126,412.31 |
| 7 | 7,488.98 | 100,974.45 | 93,485.47 | 0.5835 | 54,547.87 | 1,120,780.25 |
| 8 | 7,638.76 | 102,478.97 | 94,840.21 | 0.5403 | 51,239.21 | 1,115,176.35 |
| 9 | 7,791.53 | 104,005.90 | 96,214.37 | 0.5002 | 48,131.14 | 1,109,600.47 |
| 10 | 7,947.37 | 105,555.59 | 97,608.23 | 0.4632 | 45,211.49 | 1,104,052.46 |
| 11 | 8,106.31 | 107,128.37 | 99,022.06 | 0.4289 | 42,468.86 | 1,098,532.20 |
| 12 | 8,268.44 | 108,724.58 | 100,456.14 | 0.3971 | 39,892.52 | 1,093,039.54 |
| 13 | 8,433.81 | 110,344.58 | 101,910.77 | 0.3677 | 37,472.38 | 1,087,574.34 |
| 14 | 8,602.48 | 111,988.71 | 103,386.23 | 0.3405 | 35,198.98 | 1,082,136.47 |
| 15 | 8,774.53 | 113,657.34 | 104,882.81 | 0.3152 | 33,063.44 | 1,076,725.79 |
| 16 | 8,950.02 | 115,350.84 | 106,400.81 | 0.2919 | 31,057.38 | 1,071,342.16 |
| 17 | 9,129.02 | 117,069.57 | 107,940.54 | 0.2703 | 29,172.98 | 1,065,985.45 |
| 18 | 9,311.61 | 118,813.90 | 109,502.30 | 0.2502 | 27,402.84 | 1,060,655.52 |
| 19 | 9,497.84 | 120,584.23 | 111,086.39 | 0.2317 | 25,740.06 | 1,055,352.24 |
| 20 | 9,687.79 | 122,380.94 | 112,693.14 | 0.2145 | 24,178.11 | 1,050,075.48 |
| 21 | 9,881.55 | 124,204.41 | 114,322.86 | 0.1987 | 22,710.89 | 1,044,825.10 |
| 22 | 10,079.18 | 126,055.06 | 115,975.88 | 0.1839 | 21,332.66 | 1,039,600.98 |
| 23 | 10,280.76 | 127,933.28 | 117,652.51 | 0.1703 | 20,038.02 | 1,034,402.97 |
| 24 | 10,486.38 | 129,839.48 | 119,353.10 | 0.1577 | 18,821.91 | 1,029,230.96 |
| 25 | 10,696.11 | 131,774.09 | 121,077.98 | 0.1460 | 17,679.55 | 1,024,084.80 |
| Metric | Value |
|---|---|
| Currency | USD |
| Horizon (years) | 25 |
| Discount rate | 8.00 % |
| Total undiscounted cost (USD) | 878,001.49 |
| Total discounted cost / PV of costs (USD) | 749,282.34 |
| Total undiscounted benefit (USD) | 2,774,330.58 |
| Total discounted benefit (USD) | 1,119,384.43 |
| NPV (USD) | 370,102.10 |
| IRR | 0.1358 |
| Simple payback (year) | 7.40 |
| Discounted payback (year) | 11.34 |
| LCOE (USD/kWh) | 0.0633 |
| Scenario | Verdict | Trigger condition |
|---|---|---|
| Tariff ≥ 0.110 USD/kWh & capex ≤ 950 USD/kWp | Proceed | NPV = USD 370,102 > 0; Disc PB 11.34 yr; LCOE 0.0633 < tariff 0.110 |
| Tariff 0.090 & capex ≤ 950 | Conditional | NPV ≈ USD 110k, Disc PB ≈ 12.1 yr — only if depot has long-term roof lease and an ESG offtake to support financing |
| Capex ≥ 1,050 & tariff ≤ 0.090 | Hold | NPV ≈ USD 75k, Disc PB ≈ 13.0 yr — wait for module price normalisation; revisit quarterly |
| Yield < 1,400 kWh/kWp/yr (coastal / high-dust MEA) | Reassess | NPV ≈ USD 158k but Disc PB ≈ 13.6 yr; switch to higher-efficiency modules (e.g. Tiger Neo 640 W class) or tilt + cleaning programme |
| Item | Model / standard | Status |
|---|---|---|
| Modules — model | Jinko Tiger Neo JKM625N-78HL4-BDV, 625 Wp | Named |
| Modules — safety | IEC 61730-1 / -2, Class C | Required — IEC 61730-1 · IEC 61730-2 |
| Modules — performance | IEC 61215-1 / -2 (c-Si, TOPCon) | Required — IEC 61215-1 |
| Inverter — model | Sungrow SG125HT, 125 kW, 1,500 V DC | Named |
| Inverter — safety | IEC 62109-1 / -2 | Required — IEC 62109-1 · IEC 62109-2 |
| DC cables | TÜV 2 PfG 1169 / EN 50618 | Required |
| Power quality | IEEE 519 / IEC 61000-3-12 | Required |
| Transport — modules | UN Manual of Tests and Criteria, §38.3 (lithium is N/A; modules are inert) | UN MTC §38.3 — not required for c-Si modules, noted for completeness |
| Grid connection | Local DSO code (MEA country) | Pending — verify per site |
| Fire / structural | EN 13501-5 / local civil code | Pending — verify per site |
| HS 2022 | Description | Source | Duty (MEA) |
|---|---|---|---|
| 8541.43 | Photovoltaic cells, assembled in modules or made up into panels | USITC HTS search · EU TARIC consultation | PENDING |
| 8504.40 | Static converters — inverters for solar PV | USITC HTS search · EU TARIC consultation | PENDING |
| 7610.90 | Aluminium structures for rooftop PV mounting | USITC HTS search | PENDING |
| 8544.42 | DC cables, PV-rated (TÜV 2 PfG 1169) | USITC HTS search | PENDING |
Lookup instructions: consult the destination country's WCO Harmonized System schedule on the local customs authority website (e.g. SARS, GRA, URA); cross-check with the WTO Tariff Download platform, the EU TARIC consultation, the USITC HTS, and the UK Global Tariff for EU/UK-bound flows. Confirm preferential rates under AfCFTA, the GCC Common External Tariff, GSP, or any bilateral FTA as applicable.
Disclaimer: duty rates shown above are deliberately marked PENDING. Tradvolt does not assert any duty rate as fact. Importers must verify the applicable rate for the specific consignee and country before procurement.
Request a single, absolute RFQ for this 700 kWp depot configuration
Page slug: /use-cases/depot-solar-700kwp-mea-r9/ · Author: tradvolt.com · Reviewed by: muse-ba · Financial figures: authoritative, computed by audited model (do not edit).