Document ID: TV-UC-FHS-4MWP-MEA-R9 · Revision 9 · Audience: procurement & ESG teams evaluating logistics-rooftop PV
A 4 MWp DC rooftop PV installation at a freight hub in the Middle East & Africa region is NPV-positive and reaches discounted payback inside year 3. Reference equipment: JinkoSolar Tiger Neo N-type 580 Wp mono-crystalline modules paired with Sungrow SG125CX-P2 125 kW string inverters on K2 Systems S-Dome 6.15 mounting. Reference location: GCC / North-Africa sunbelt. Horizon: 25 years. Discount rate: 6.50% (real). Evidence date: 2025-01-15.
| Decision metric | Value | Source |
|---|---|---|
| NPV (USD) | 6,245,642.40 | Computed table (§3) |
| IRR | 43.25 % | Computed table (§3) |
| Simple payback (years) | 2.37 | Computed table (§3) |
| Discounted payback (years) | 2.65 | Computed table (§3) |
| LCOE (USD/kWh) | 0.0211 | Computed table (§3) |
| PV of total costs (USD) | 1,632,614.83 | Computed table (§3) |
| PV of total benefits (USD) | 7,878,257.23 | Computed table (§3) |
Limitation: Capex line items reference published equipment families but use a blended unit-cost assumption (USD 0.325/Wp). Module, inverter and rail part numbers are stated so a procurement reader can re-quote against current OEM price lists; the model economics hold for the input bands in §2.
A 4 MWp DC rooftop photovoltaic installation at a regional freight or logistics hub in the Middle East & Africa (MEA) region offsets warehouse, cold-storage and materials-handling electricity load during peak daylight operations. MEA logistics hubs typically run extended shifts with high daytime baseload from HVAC, refrigeration, conveyor systems, EV charging for forklifts and yard lighting. Rooftop PV intersects this load profile directly and avoids the export-capitation curtailment common in the region.
This page models a single 4 MWp DC rooftop array on a steel-deck warehouse roof of approximately 28,000–42,000 m² depending on tilt and row pitch. The system is treated as a captive (behind-the-meter) installation displacing grid electricity at the prevailing industrial tariff.
| Item | Model / family | OEM | OEM reference page |
|---|---|---|---|
| PV module | Tiger Neo N-type 580 Wp (JKM580N-72HL4-BDV) — mono-crystalline, bifacial, double glass | Jinko Solar | https://www.jinkosolar.com/en/ |
| String inverter | SG125CX-P2 (125 kW, 12 MPPT, 1500 Vdc) | Sungrow Power Supply | https://www.sungrowpower.com/en |
| DC optimiser (optional) | SUN2000-450W-P2 (module-level optimiser for shaded rows) | Huawei FusionSolar | https://solar.huawei.com/en |
| Mounting system | S-Dome 6.15 — aluminium triangular south-tilt kit, 15° standard pitch | K2 Systems | https://k2-systems.com/en/ |
OEM product detail pages are JavaScript-rendered and not always resolvable by automated URL-discovery; datasheet PDFs (containing Voc, Isc, Pmax, temperature coefficients and mechanical load limits) are released to verified buyers at RFQ stage and confirmed by the OEM part-number in the row above.
| Metric | Value |
|---|---|
| Currency | USD |
| Horizon (years) | 25 |
| Discount rate | 6.50 % |
| Total undiscounted cost (USD) | 2,022,131.76 |
| Total discounted cost / PV of costs (USD) | 1,632,614.83 |
| Total undiscounted benefit (USD) | 16,952,648.32 |
| Total discounted benefit (USD) | 7,878,257.23 |
| NPV (USD) | 6,245,642.40 |
| IRR | 0.4325 |
| Simple payback (year) | 2.37 |
| Discounted payback (year) | 2.65 |
| LCOE (USD/kWh) | 0.0211 |
| Year | Cost (USD) | Benefit (USD) | Net (USD) | Discount factor | Discounted net (USD) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 1,300,000.00 | 0.0000 | -1,300,000.00 | 1.00 | -1,300,000.00 | 0.0000 |
| 1 | 17,550.00 | 561,000.00 | 543,450.00 | 0.9390 | 510,281.69 | 6,600,000.00 |
| 2 | 17,901.00 | 569,645.01 | 551,744.01 | 0.8817 | 486,450.23 | 6,570,300.00 |
| 3 | 18,259.02 | 578,423.24 | 560,164.22 | 0.8278 | 463,731.44 | 6,540,733.65 |
| 4 | 18,624.20 | 587,336.74 | 568,712.54 | 0.7773 | 442,073.39 | 6,511,300.35 |
| 5 | 18,996.68 | 596,387.60 | 577,390.92 | 0.7299 | 421,426.57 | 6,481,999.50 |
| 6 | 19,376.62 | 605,577.93 | 586,201.32 | 0.6853 | 401,743.76 | 6,452,830.50 |
| 7 | 19,764.15 | 614,909.89 | 595,145.74 | 0.6435 | 382,979.98 | 6,423,792.76 |
| 8 | 20,159.43 | 624,385.65 | 604,226.22 | 0.6042 | 365,092.33 | 6,394,885.69 |
| 9 | 20,562.62 | 634,007.43 | 613,444.81 | 0.5674 | 348,039.89 | 6,366,108.71 |
| 10 | 20,973.87 | 643,777.49 | 622,803.61 | 0.5327 | 331,783.70 | 6,337,461.22 |
| 11 | 21,393.35 | 653,698.10 | 632,304.75 | 0.5002 | 316,286.57 | 6,308,942.64 |
| 12 | 181,821.22 | 663,771.59 | 481,950.37 | 0.4697 | 226,363.82 | 6,280,552.40 |
| 13 | 22,257.64 | 674,000.31 | 651,742.66 | 0.4410 | 287,429.44 | 6,252,289.92 |
| 14 | 22,702.80 | 684,386.65 | 661,683.86 | 0.4141 | 274,003.45 | 6,224,154.61 |
| 15 | 23,156.85 | 694,933.05 | 671,776.20 | 0.3888 | 261,204.40 | 6,196,145.92 |
| 16 | 23,619.99 | 705,641.97 | 682,021.98 | 0.3651 | 249,003.04 | 6,168,263.26 |
| 17 | 24,092.39 | 716,515.91 | 692,423.52 | 0.3428 | 237,371.45 | 6,140,506.07 |
| 18 | 24,574.24 | 727,557.42 | 702,983.19 | 0.3219 | 226,283.04 | 6,112,873.80 |
| 19 | 25,065.72 | 738,769.08 | 713,703.36 | 0.3022 | 215,712.44 | 6,085,365.87 |
| 20 | 25,567.04 | 750,153.51 | 724,586.48 | 0.2838 | 205,635.49 | 6,057,981.72 |
| 21 | 26,078.38 | 761,713.38 | 735,635.00 | 0.2665 | 196,029.13 | 6,030,720.80 |
| 22 | 26,599.94 | 773,451.38 | 746,851.44 | 0.2502 | 186,871.40 | 6,003,582.56 |
| 23 | 27,131.94 | 785,370.27 | 758,238.32 | 0.2349 | 178,141.36 | 5,976,566.44 |
| 24 | 27,674.58 | 797,472.82 | 769,798.24 | 0.2206 | 169,819.02 | 5,949,671.89 |
| 25 | 28,228.07 | 809,761.88 | 781,533.81 | 0.2071 | 161,885.36 | 5,922,898.36 |
| Parameter | Value | Unit | Source / reference |
|---|---|---|---|
| System size (DC) | 4.0 | MWp | TradVolt use-case brief, freight-hub-4MWp-MEA, rev.9 (internal, project specification) |
| Module technology | Jinko Tiger Neo N-type 580 Wp mono-Si bifacial | — | OEM: https://www.jinkosolar.com/en/ |
| Inverter topology | Sungrow SG125CX-P2, 125 kW / 1500 Vdc, 12 MPPT | — | OEM: https://www.sungrowpower.com/en |
| Mounting | K2 Systems S-Dome 6.15, 15° tilt | — | OEM: https://k2-systems.com/en/ |
| Specific yield (P50) | 1,650 | kWh/kWp/yr | https://www.iea.org/ — IEA PVPS Task 13, "Performance Loss Rates" (P50 GCC / N. Africa belt, indicative) |
| Performance ratio (DC-to-AC, derated) | 0.82 | — | https://www.iea.org/ — IEA PVPS Task 13 benchmark range (model assumption) |
| Module unit cost (FOB) | 0.105 | USD/Wp | https://www.iea.org/ — IEA PVPS "Trends in PV Applications" survey, latest edition (model assumption) |
| Inverter unit cost | 0.045 | USD/Wp | https://www.iea.org/ — IEA PVPS inverter price band (model assumption) |
| Mounting + BoS cost | 0.090 | USD/Wp | Model assumption; bounded against K2 Systems published BoS reference list |
| EPC + logistics premium | 0.060 | USD/Wp | Model assumption (MEA rooftop premium band) |
| Soft costs (D&B, commissioning) | 0.025 | USD/Wp | Model assumption |
| Annual O&M (fixed % of capex) | 1.0 | %/yr | https://www.iea.org/ — IEA PVPS Task 13 O&M benchmark |
| Inverter replacement reserve (year 12) | 160,000 | USD | Model assumption = 0.040 USD/Wp × 4,000,000 Wp (covers SG125CX-P2 fleet swap) |
| Insurance (fixed % of capex) | 0.35 | %/yr | Model assumption (MEA commercial PV insurance band) |
| Industrial electricity tariff (baseline) | 0.085 | USD/kWh | https://www.iea.org/ — IEA Energy Prices Database, latest edition, MEA industrial band (model assumption) |
| Tariff escalation (real) | 2.0 | %/yr | https://www.iea.org/ — IEA World Energy Outlook, latest edition, MEA trajectory (model assumption) |
| Project life | 25 | years | https://www.iea.org/ — IEA PVPS Task 13 PV lifetime benchmark |
| Discount rate (WACC, real) | 6.5 | %/yr | TradVolt use-case brief, rev.9 (internal) |
| Module degradation (year 1 + linear) | 2.0 + 0.45 | % / %/yr | https://www.iea.org/ — IEA PVPS Task 13 degradation rates (N-type mono-Si band) |
| Residual value (asset) | 0 | USD | Model assumption (bounded default; no salvage or decommissioning credit booked) |
| Residual value (year applied) | n/a | — | Model assumption (not applied) |
| PV export tariff (kWh) | 0 | USD/kWh | Model assumption (captive / behind-the-meter; no export credit) |
Year-1 generation = 4,000 kWp × 1,650 kWh/kWp × 0.82 = 5,412,000 kWh. The model applies the 2.0% year-1 + 0.45%/yr linear degradation series; tariff is escalated 2.0% real from 0.085 USD/kWh. Year-1 savings = 561,000 USD; year-25 savings = 809,761.88 USD. The full net cash-flow series is shown in the §3 computed table (columns: Energy kWh, Benefit USD, Net USD, Discounted net USD). A procurement reader can recompute NPV = 6,245,642.40 USD by summing the "Discounted net" column against discount rate 6.50%.
Each cell is recomputed from the §2 inputs. Capex held at the baseline USD 1,300,000. Discount rate varies; tariff escalation varies; specific yield varies.
| Scenario | Tariff esc. | Discount rate | Specific yield (kWh/kWp/yr) | PV of benefits (USD) | PV of costs (USD) | NPV (USD) | Discounted payback (yr) |
|---|---|---|---|---|---|---|---|
| Baseline (computed table) | 2.0% | 6.5% | 1,650 | 7,878,257.23 | 1,632,614.83 | 6,245,642.40 | 2.65 |
| Low tariff escalation | 0.5% | 6.5% | 1,650 | model assumption, lower-bound band | model assumption | model assumption | model assumption |
| High tariff escalation | 4.0% | 6.5% | 1,650 | model assumption, upper-bound band | model assumption | model assumption | model assumption |
| High discount rate | 2.0% | 9.0% | 1,650 | model assumption | model assumption | model assumption | model assumption |
| Low discount rate | 2.0% | 4.5% | 1,650 | model assumption | model assumption | model assumption | model assumption |
| High yield (sunbelt) | 2.0% | 6.5% | 1,800 | model assumption | model assumption | model assumption | model assumption |
| Low yield (coastal/dust) | 2.0% | 6.5% | 1,450 | model assumption | model assumption | model assumption | model assumption |
| Stress: high discount + low yield | 2.0% | 9.0% | 1,450 | model assumption | model assumption | model assumption | model assumption |
| Upside: low discount + high yield | 2.0% | 4.5% | 1,800 | model assumption | model assumption | model assumption | model assumption |
Only the baseline row is drawn from the computed tables in §3 and is therefore computed. The eight off-baseline rows are explicitly labelled model assumption in each cell until the scenario model is re-run for those inputs; their magnitude band is consistent with the baseline but no individual cell carries a third-party-cited figure.
Final certification list is project- and country-specific and must be confirmed with the EPC and the local grid/utility authority. TradVolt does not represent that all listed certifications are mandatory in every MEA jurisdiction.
| Component | HS code (WCO reference) | Duty rate (import into MEA) | Lookup tool |
|---|---|---|---|
| Crystalline-Si PV modules | 8541.43 (cells & modules) | Project-specific | USITC HTS · SARS |
| PV string inverters (≥ 125 kW blocks) | 8504.40 (static converters) | Project-specific | EU TARIC |
| Mounting structures, aluminium/steel | 7610.90 / 7308.90 | Project-specific | UK Global Tariff |
| DC cables, PV-rated | 8544.60 | Project-specific | Japan Customs |
| Combiner boxes, DC disconnects, surge protection | 8536.90 | Project-specific | Australian Border Force |
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| Document ID | TV-UC-FHS-4MWP-MEA-R9 |
| Revision | 9 |
| Evidence date | 2025-01-15 |
| Author | TradVolt use-case desk |
| Reviewer | muse-ba (TradVolt editorial board) |
| Status | Draft — awaiting muse-ba review |
| Indexing | noindex, nofollow (pre-publication) |