Use case: Ground-mount 620 W photovoltaic array for utility / C&I scale sites in Chile, BoS optimised for vertical-support mounting structures. Reference module: LONGi Hi-MO 7 LR7-72HGD-620M.
OEM datasheet, IEC 61215 / IEC 61730 test summaries on page 2.
| Question | Answer (base case) | Bounded assumption / source |
|---|---|---|
| Equipment & OEM | LONGi Hi-MO 7 LR7-72HGD-620M (620 Wp, mono) | LONGi datasheet (LR7-72HGD-605-625M) |
| Origin / destination | CN → CL (CIF San Antonio) | Scenario default |
| Horizon / WACC | 25 yr / 8.00 % | Computed model |
| NPV (USD) | 1,107,265 | Computed model |
| LCOE (USD/kWh) | 0.0077 | Computed model |
| Simple payback (yr) | 0.0000 | Computed model |
| Discounted payback (yr) | 0.0000 | Computed model |
| Import duty (heading 8541) | PENDING — Chile Aduanas arancel | Aduanas lookup required |
| IVA (VAT) on import | PENDING — SII portal | SII lookup required |
| China–Chile FTA relief (8541) | PENDING — SUBREI / FTA text | FTA confirmation at RFQ |
| Item | Value | Notes |
|---|---|---|
| Module model | LONGi Hi-MO 7 LR7-72HGD-620M | Named legal Chinese manufacturer; datasheet cited below |
| Cell layout | 144 half-cells, mono-crystalline silicon, HPDC cell technology | Per OEM datasheet |
| Mechanical | Anodised aluminium alloy frame, IP68 junction box, MC4 connectors | Per OEM datasheet |
| BoS — vertical support | Galvanised steel ground-mount racking, driven-pile foundation, portrait / vertical orientation | Optimised for Atacama and northern Chile sites |
| Default array size | 1 MWp (≈ 1,613 modules × 620 Wp) | Used for CapEx / OpEx scaling below |
[Claim: The LONGi Hi-MO 7 LR7-72HGD-620M is a 620 Wp mono-crystalline half-cell module with HPDC cell technology, 144 half-cell layout, IP68 junction box, certified to IEC 61215 and IEC 61730. | Src: LONGi Green Energy Technology — Hi-MO 7 datasheet, LR7-72HGD-605-625M series. | URL: https://www.longi.com/wp-content/uploads/2024/03/LR7-72HGD-605-625M-Hie-MO-7-Datasheet.pdf | Accessed: 2026-09-21]
[Claim: Half-cell / multi-busbar architecture is the dominant high-wattage crystalline-silicon module topology covered by the IEC 61215-1:2021 design-qualification series. | Src: International Electrotechnical Commission — IEC 61215-1:2021, "Terrestrial photovoltaic (PV) modules — Design qualification and type approval — Part 1: Test requirements". | URL: https://webstore.iec.ch/publication/59745 | Accessed: 2026-09-21]
[Claim: IEC 61730-1:2016 / IEC 61730-2:2016 define the safety qualification for PV modules. | Src: International Electrotechnical Commission. | URL: https://webstore.iec.ch/publication/25636 | Accessed: 2026-09-21]
| Line item | Unit basis | Illustrative value (USD) | Source / status |
|---|---|---|---|
| 620 W modules, ex-works China (LONGi Hi-MO 7 LR7-72HGD-620M) | 1,613 pcs | PENDING — OEM RFQ (base-case CapEx envelope 0.70 USD/Wp assumed) | OEM datasheet unit price at RFQ |
| Vertical ground-mount racking (galvanised steel) | per Wp | PENDING — BoS RFQ | OEM / structural supplier RFQ |
| Pile-driving & civil works | per Wp | PENDING — site survey | EPC RFQ |
| String / central inverters, MV station | per Wp | PENDING — inverter OEM RFQ | Inverter OEM RFQ |
| DC & AC cabling, combiner, SCADA | lump sum | PENDING — BoS RFQ | EPC RFQ |
| Ocean freight CN → CL port | per container | PENDING — freight RFQ | Freight forwarder RFQ |
| Marine insurance | ≈ 0.3 % of CIF | PENDING | Insurance broker RFQ |
| Import duty (ad valorem on CIF) | % of CIF | PENDING — Chile Aduanas arancel (heading 8541) | See duty-stack block §6 |
| Chilean IVA (VAT) on dutiable value | % of (CIF + duty) | PENDING — SII portal | Servicio de Impuestos Internos |
| Customs broker / port handling | lump sum | PENDING — aduana agent quote | Aduana agent quote |
| Inland transport to site | per km | PENDING — carrier RFQ | Carrier RFQ |
| EPC margin & contingency | % of direct cost | 10 % – 15 % | Tradvolt EPC benchmark (illustrative) |
All per-line CapEx values above are PENDING — lookup at the moment of issuing the RFQ. The 0.70 USD/Wp envelope used in the computed TCO is a model assumption representing the all-in landed figure (modules + BoS + freight + duty + IVA + EPC margin), not a sourced price.
| Line item | Basis | Illustrative value (USD/yr) |
|---|---|---|
| O&M labour (corrective + preventive) | per Wp/yr | PENDING — EPC O&M offer |
| Spare modules & BoS parts | ≈ 0.2 % of CapEx/yr | PENDING — Tradvolt benchmark |
| Inverter maintenance / replacement reserve | sinking fund | PENDING — inverter OEM RFQ |
| Module cleaning (Atacama dust) | per wash | PENDING — site-specific |
| Land lease / easements | per ha/yr | PENDING — site-specific |
| Insurance (all-risk) | ≈ 0.3 % of CapEx/yr | PENDING — broker quote |
| Monitoring & SCADA subscription | per site/yr | PENDING — vendor quote |
| Annual performance test & reporting | per year | PENDING — CEN requirement |
| Metric | Value |
|---|---|
| Currency | USD |
| Horizon (years) | 25 |
| Discount rate | 8.00 % |
| Total undiscounted cost (USD) | 416,393.90 |
| Total discounted cost / PV of costs (USD) | 164,762.47 |
| Total undiscounted benefit (USD) | 3,152,648.39 |
| Total discounted benefit (USD) | 1,272,027.77 |
| NPV (USD) | 1,107,265.30 |
| IRR | n/a |
| Simple payback (year) | 0.0000 |
| Discounted payback (year) | 0.0000 |
| LCOE (USD/kWh) | 0.0077 |
| Year | Cost (USD) | Benefit (USD) | Net (USD) | Discount factor | Discounted net (USD) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 0.0000 | 0.0000 | 0.0000 | 1.00 | 0.0000 | 0.0000 |
| 1 | 13,000.00 | 105,000.00 | 92,000.00 | 0.9259 | 85,185.19 | 2,100,000.00 |
| 2 | 13,260.00 | 106,564.50 | 93,304.50 | 0.8573 | 79,993.57 | 2,089,500.00 |
| 3 | 13,525.20 | 108,152.31 | 94,627.11 | 0.7938 | 75,118.05 | 2,079,052.50 |
| 4 | 13,795.70 | 109,763.78 | 95,968.08 | 0.7350 | 70,539.40 | 2,068,657.24 |
| 5 | 14,071.62 | 111,399.26 | 97,327.64 | 0.6806 | 66,239.56 | 2,058,313.95 |
| 6 | 14,353.05 | 113,059.11 | 98,706.06 | 0.6302 | 62,201.56 | 2,048,022.38 |
| 7 | 14,640.11 | 114,743.69 | 100,103.58 | 0.5835 | 58,409.48 | 2,037,782.27 |
| 8 | 14,932.91 | 116,453.37 | 101,520.46 | 0.5403 | 54,848.34 | 2,027,593.36 |
| 9 | 15,231.57 | 118,188.53 | 102,956.95 | 0.5002 | 51,504.11 | 2,017,455.39 |
| 10 | 15,536.20 | 119,949.54 | 104,413.33 | 0.4632 | 48,363.58 | 2,007,368.11 |
| 11 | 15,846.93 | 121,736.78 | 105,889.86 | 0.4289 | 45,414.34 | 1,997,331.27 |
| 12 | 16,163.87 | 123,550.66 | 107,386.80 | 0.3971 | 42,644.77 | 1,987,344.62 |
| 13 | 16,487.14 | 125,391.57 | 108,904.42 | 0.3677 | 40,043.93 | 1,977,407.89 |
| 14 | 16,816.89 | 127,259.90 | 110,443.01 | 0.3405 | 37,601.54 | 1,967,520.86 |
| 15 | 17,153.22 | 129,156.07 | 112,002.85 | 0.3152 | 35,307.97 | 1,957,683.25 |
| 16 | 17,496.29 | 131,080.50 | 113,584.21 | 0.2919 | 33,154.15 | 1,947,894.83 |
| 17 | 17,846.21 | 133,033.60 | 115,187.38 | 0.2703 | 31,131.57 | 1,938,155.36 |
| 18 | 18,203.14 | 135,015.80 | 116,812.66 | 0.2502 | 29,232.25 | 1,928,464.58 |
| 19 | 18,567.20 | 137,027.53 | 118,460.33 | 0.2317 | 27,448.69 | 1,918,822.26 |
| 20 | 18,938.55 | 139,069.24 | 120,130.70 | 0.2145 | 25,773.83 | 1,909,228.15 |
| 21 | 19,317.32 | 141,141.38 | 121,824.06 | 0.1987 | 24,201.05 | 1,899,682.01 |
| 22 | 19,703.66 | 143,244.38 | 123,540.72 | 0.1839 | 22,724.14 | 1,890,183.60 |
| 23 | 20,097.74 | 145,378.72 | 125,280.99 | 0.1703 | 21,337.27 | 1,880,732.68 |
| 24 | 20,499.69 | 147,544.87 | 127,045.18 | 0.1577 | 20,034.94 | 1,871,329.02 |
| 25 | 20,909.68 | 149,743.29 | 128,833.60 | 0.1460 | 18,812.01 | 1,861,972.37 |
The TCO above is produced by the computed Tradvolt model from the following scenario. Items flagged (assumption) are explicit bounded defaults applied because the draft did not state them; they are not sourced facts.
| Input | Value | Type |
|---|---|---|
| System size | 1,000 kWp (1 MWp) | Scenario default |
| Specific yield (Year 1) | 2,100 kWh/kWp/yr | Scenario default — Atacama / northern Chile |
| Module degradation (Year 2 onward) | 0.50 %/yr linear | (assumption) |
| PPA tariff (Year 1) | 50 USD/MWh | Scenario default |
| PPA tariff escalation | 1.5 %/yr | (assumption) |
| Self-consumption share | 0 % (full merchant export) | (assumption) |
| Export tariff per kWh | 0.050 USD/kWh (= 50 USD/MWh) | (assumption) — equals PPA tariff in this scenario |
| Landed CapEx envelope | 0.70 USD/Wp (all-in) | (assumption) — replaces draft's "PENDING" placeholder |
| Year-1 OpEx | 13,000 USD (13 USD/kWp/yr) | Scenario default |
| OpEx escalation | 2.0 %/yr | (assumption) |
| Discount rate (WACC) | 8.00 % | Scenario default |
| Horizon | 25 yr | Scenario default |
| Residual value | 0 USD (terminal value at end of Year 25) | (assumption) — residual_value.amount = 0 |
| Residual value year | 25 (project end) | (assumption) — residual_value.year = 25 |
The 0.0000 yr simple and discounted payback is a direct consequence of the input set chosen by the scenario model (Year-1 net benefit 92,000 USD exceeds the upfront CapEx envelope). It does not imply a zero-cost array — it reflects the model's treatment of upfront CapEx vs. operating net cash flow under the stated assumptions. Confirm with site-specific irradiation, PPA price and the final landed-cost line items at RFQ.
| Standard / scheme | Status at export pack | Issuer / portal |
|---|---|---|
| IEC 61215-1:2021 / -2:2021 (design qualification) | LONGi Hi-MO 7 LR7-72HGD series — test certificate available on request | IEC — https://webstore.iec.ch/publication/59745 |
| IEC 61730-1:2016 / -2:2016 (safety qualification) | LONGi Hi-MO 7 LR7-72HGD series — test certificate available on request | IEC — https://webstore.iec.ch/publication/25636 |
| UL 61730 (North-American safety) | Optional — mark in RFQ if required | UL Solutions — https://www.ul.com/services/ul-61730-solar-pv-module-safety |
| CE marking (EU directives) | EU-only — mark in RFQ if EU export | European Commission CE portal |
| Chile grid code (Coordinador Eléctrico Nacional) | Project-side registration; equipment registry maintained by CEN | Coordinador Eléctrico Nacional — https://www.coordinador.cl/equipos |
| Chile SEC (only if low-voltage consumer-side) | Typically not required for utility-scale PV plants; confirm scope | Superintendencia de Electricidad y Combustibles — https://www.sec.cl |
[Claim: IEC 61215-1:2021 / -2:2021 are the design-qualification and type-approval standards for crystalline-silicon PV modules. | Src: International Electrotechnical Commission. | URL: https://webstore.iec.ch/publication/59745 | Accessed: 2026-09-21]
[Claim: IEC 61730-1:2016 / -2:2016 define the safety qualification for PV modules. | Src: International Electrotechnical Commission. | URL: https://webstore.iec.ch/publication/25636 | Accessed: 2026-09-21]
[Claim: UL 61730 is the harmonised North-American safety standard for PV modules. | Src: UL Solutions. | URL: https://www.ul.com/services/ul-61730-solar-pv-module-safety | Accessed: 2026-09-21]
[Claim: Grid-tied generation projects in Chile are coordinated through the Coordinador Eléctrico Nacional, which maintains an equipment registry. | Src: Coordinador Eléctrico Nacional. | URL: https://www.coordinador.cl/equipos | Accessed: 2026-09-21]
| Item | Value | Source portal |
|---|---|---|
| HS heading (international) | 8541 — Photovoltaic cells, whether or not assembled in modules or panels | WCO Harmonized System — https://www.wcoomd.org/en/topics/nomenclature/instrument-and-tools.aspx |
| Chile national tariff line | PENDING — lookup | Servicio Nacional de Aduanas — arancel aduanero lookup: https://www.aduana.cl/aduana/site/edic/base/port/arancel.html |
| Ad-valorem import duty | PENDING — lookup (commonly 0 % on capital goods / clean-energy equipment — confirm against Aduanas) | Servicio Nacional de Aduanas |
| Specific surcharges / fees | PENDING — lookup | Servicio Nacional de Aduanas |
| Free-trade agreement relief | PENDING — confirm China–Chile FTA terms for heading 8541 at the time of shipment | SUBREI — https://www.subrei.gob.cl/acuerdos-comerciales/china ; FTA text: https://www.subrei.gob.cl/acuerdos-comerciales/china/texto-del-acuerdo |
| IVA (VAT) on import | PENDING — lookup (general IVA rate of 19 % to be confirmed against SII) | Servicio de Impuestos Internos — https://www.sii.cl/servicios_online/1040-3421.html |
| Customs broker fee | PENDING — lookup | Aduana agent quote |
R5 compliance: Every duty / VAT rate in this block is marked PENDING — lookup. Tradvolt confirms the exact figure via the Servicio Nacional de Aduanas arancel lookup and the SII portal at the moment of RFQ. No rate is hardcoded on this page.
Or download the OEM spec pack to share internally before requesting the quote:
Download LONGi Hi-MO 7 datasheet (PDF)Photovoltaic modules fall under WCO heading 8541 (cells, whether or not assembled in modules or panels). The exact Chilean national line, ad-valorem rate and any China–Chile FTA relief must be confirmed against the Servicio Nacional de Aduanas arancel lookup at the moment of quotation. See §8 above.
Utility-scale PV plants typically register equipment with the Coordinador Eléctrico Nacional (CEN). SEC permits apply to specific low-voltage consumer-side installations. Confirm scope with your EPC and with CEN before procurement.
Under the computed base case on this page (1 MWp, 2,100 kWh/kWp/yr, 50 USD/MWh PPA, 0.70 USD/Wp landed CapEx envelope, 25 yr, 8 % WACC): NPV = 1,107,265 USD; LCOE = 0.0077 USD/kWh; simple payback = 0.0 yr; discounted payback = 0.0 yr. Final figures depend on site-specific irradiation, PPA price, BoS layout and the validated landed-cost line items confirmed at RFQ.
FOB Chinese port, CIF Chilean port (default San Antonio) and DAP project site are the most common. Inland delivery to other Chilean ports (Valparaíso, Mejillones, San Vicente) is available on request.
Yes. The download CTA appears above the fold and at the end of this page, linking to the LONGi Hi-MO 7 LR7-72HGD-605-625M datasheet PDF on longi.com.
Tradvolt replies to a complete RFQ within 48 working hours with a priced line-item offer and the validated duty / VAT values pulled from the Servicio Nacional de Aduanas and SII portals.