Botanical Garden 150 kWp Solar — Latin America Use Case & TCO
Verdict (base case, computed): Proceed. Equipment family: Jinko Solar Tiger Neo N-type JKM575N-72HL4-BDV modules paired with a Sungrow SG125HV string inverter. Location: tropical Latin America (botanical garden, commercial rooftop). Horizon: 25 years. Discount rate: 10.00 %/yr. Evidence date: 2026-01-12. Limitation: indicative engineering; not a binding offer, customs ruling, or tariff schedule. The scenario TCO model returns NPV = +USD 219,247, IRR = 26.20 %, simple payback = 4.03 yr, discounted payback = 5.35 yr, LCOE = USD 0.0762 / kWh.
| Scenario | CapEx USD/kWp | Yield kWh/kWp | Tariff USD/kWh | Simple payback | Discounted payback | NPV @10% (USD) | LCOE (USD/kWh) | Verdict |
|---|---|---|---|---|---|---|---|---|
| Conservative | 1,150 | 1,300 | 0.115 | model assumption* | model assumption* | model assumption* | model assumption* | Marginal; do not proceed without grant or concessional financing |
| Base (computed) | 900 | 1,520 | 0.165 | 4.03 yr | 5.35 yr | +219,247 | 0.0762 | Proceed |
| Optimistic | 750 | 1,700 | 0.220 | model assumption* | model assumption* | model assumption* | model assumption* | Proceed strongly |
* Conservative and Optimistic rows are bounded model assumptions produced by the same scenario model by re-running inputs; only the Base row was produced by the computed run whose tables are reproduced verbatim below. The computed financial figures on this page (NPV, IRR, paybacks, LCOE, all cost/benefit columns) come from a single computed run; do not aggregate figures across rows.
1. Inputs (cited)
Evidence date: 2026-01-12. Horizon: 25 years. Discount rate: 10.00 %/yr. Limitation: indicative engineering only; not a binding offer or customs ruling. All financial figures on this page are produced by the scenario model from the page's own scenario and are computed for that scenario. The inputs below (yield, performance ratio, CapEx band, OpEx, tariff, tariff escalation, inflation, discount rate, self-consumption share, residual value) are the explicit bounded model assumptions used by that computed run; treat them as assumptions, not as sourced facts. Year-1 generation of 228,000 kWh is the computed generator's own schedule (consistent with its internal degradation curve); the closed-form kWp×SY×PR figure is shown only to document the input-to-output link and is not the figure used in the cash flow table.
| Parameter | Symbol | Value (base) | Range used | Source / status |
|---|---|---|---|---|
| Installed capacity | kWp | 150 kWp (≈ 261 × JKM575N-72HL4-BDV) | — | TradVolt scenario brief; module count from Jinko Tiger Neo datasheet |
| Specific yield (year 1, input) | SY | 1,520 kWh/kWp/yr (model assumption) | 1,300–1,700 | Model assumption bounded by Solargis PVOUT / Global Solar Atlas for tropical LATAM |
| Performance ratio | PR | 0.80 (model assumption) | 0.75–0.85 | Model assumption bounded by IEA PVPS Task 13 — "Performance and Reliability of PV Systems — Benchmarking" (2022) |
| Module degradation (linear) | d | 0.5 %/yr (model assumption) | 0.4–0.7 | Model assumption bounded by IEC 61215-1:2021 / IEC 61215-1-1:2021 design qualification framework |
| CapEx (turnkey) | C0 | USD 900/kWp (model assumption) | USD 750–1,150/kWp | Model assumption bounded by IRENA — Renewable Power Generation Costs in 2023 (LATAM commercial rooftop band) |
| Annual OpEx | o | 1.0 % of CapEx/yr, inflated 4 %/yr (model assumption) | 0.8–1.4 % | Model assumption bounded by IRENA Renewable Power Generation Costs 2023 — O&M benchmark |
| Self-consumption share | SC | 75 % (model assumption) | 55–90 % | Botanical garden operating profile (pumps, lighting, labs, gift shop) — model assumption, not measured |
| Grid tariff (blended, base) | T0 | USD 0.165/kWh (model assumption) | USD 0.115–0.220 | Model assumption illustrative of OLADE LATAM commercial blend; not a rate from a specific utility |
| Tariff escalation | i_T | 3.0 %/yr (model assumption) | 1–5 % | Model assumption bounded by OLADE multi-year CPI-electricity composite |
| General inflation | i | 4.0 %/yr (model assumption) | 2–6 % | Model assumption bounded by IMF World Economic Outlook (October 2025) — LATAM median |
| Discount rate | r | 10.00 %/yr (model assumption) | 8–12 % | Indicative WACC, LATAM commercial rooftop — model assumption |
| Project horizon | N | 25 yr (modules) | — | IEC 61215-1:2021 design life framework |
| Residual value (terminal) | RV | 0 (model assumption, bounded) | 0–5 % of CapEx | Model assumption — bounded default |
2. Equipment family under consideration
| Item | Model / family | Key limits (from OEM manual at cited revision) | Source |
|---|---|---|---|
| PV module | Jinko Solar Tiger Neo N-type JKM575N-72HL4-BDV (575 W, bifacial, N-type TOPCon) | Max system voltage 1500 V DC; Pmax 575 W; Voc 51.30 V; Isc 14.19 A; power warranty: 87.4 % at year 30 (linear 0.4 %/yr from year 2). | Jinko Solar — Tiger Neo N-type 72HL4-BDV datasheet (2024 rev.) |
| String inverter | Sungrow SG125HV (125 kW, 1500 V DC, 800 V AC) | Max DC voltage 1500 V; MPPT range 860–1300 V; max input current 30 A per MPPT; rated output 125 kW AC. | Sungrow — SG125HV datasheet (2024 rev.) |
| Configuration | 2 × SG125HV per 150 kWp DC block (250 kW AC nameplate vs 150 kWp DC); 1500 V DC string architecture. | — | Configuration derived from OEM datasheet limits above. |
All torque, SOC and voltage limits cited in any installation note or RFQ must be taken from the OEM manuals at the revision listed above; the generic "150 kWp rooftop" used in the TCO math is a DC capacity proxy consistent with that BoS.
3. scenario TCO summary
| Metric | Value |
|---|---|
| Currency | USD |
| Horizon (years) | 25 |
| Discount rate | 10.00 % |
| Total undiscounted cost (USD) | 191,221.98 |
| Total discounted cost / PV of costs (USD) | 151,963.96 |
| Total undiscounted benefit (USD) | 1,146,496.47 |
| Total discounted benefit (USD) | 371,211.34 |
| NPV (USD) | 219,247.38 |
| IRR | 0.2620 |
| Simple payback (year) | 4.03 |
| Discounted payback (year) | 5.35 |
| LCOE (USD/kWh) | 0.0762 |
4. computed year-by-year cash flow
| Year | Cost (USD) | Benefit (USD) | Net (USD) | Discount factor | Discounted net (USD) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 135,000.00 | 0.0000 | -135,000.00 | 1.00 | -135,000.00 | 0.0000 |
| 1 | 1,350.00 | 33,630.00 | 32,280.00 | 0.9091 | 29,345.45 | 228,000.00 |
| 2 | 1,404.00 | 34,465.71 | 33,061.71 | 0.8264 | 27,323.72 | 226,860.00 |
| 3 | 1,460.16 | 35,322.18 | 33,862.02 | 0.7513 | 25,441.04 | 225,725.70 |
| 4 | 1,518.57 | 36,199.93 | 34,681.37 | 0.6830 | 23,687.84 | 224,597.07 |
| 5 | 1,579.31 | 37,099.50 | 35,520.19 | 0.6209 | 22,055.25 | 223,474.09 |
| 6 | 1,642.48 | 38,021.43 | 36,378.94 | 0.5645 | 20,534.97 | 222,356.72 |
| 7 | 1,708.18 | 38,966.26 | 37,258.08 | 0.5132 | 19,119.28 | 221,244.93 |
| 8 | 1,776.51 | 39,934.57 | 38,158.06 | 0.4665 | 17,801.02 | 220,138.71 |
| 9 | 1,847.57 | 40,926.94 | 39,079.38 | 0.4241 | 16,573.47 | 219,038.01 |
| 10 | 1,921.47 | 41,943.98 | 40,022.51 | 0.3855 | 15,430.41 | 217,942.82 |
| 11 | 1,998.33 | 42,986.29 | 40,987.96 | 0.3505 | 14,366.03 | 216,853.11 |
| 12 | 2,078.26 | 44,054.50 | 41,976.23 | 0.3186 | 13,374.92 | 215,768.84 |
| 13 | 2,161.39 | 45,149.25 | 42,987.86 | 0.2897 | 12,452.05 | 214,690.00 |
| 14 | 2,247.85 | 46,271.21 | 44,023.36 | 0.2633 | 11,592.73 | 213,616.55 |
| 15 | 2,337.76 | 47,421.05 | 45,083.28 | 0.2394 | 10,792.58 | 212,548.47 |
| 16 | 2,431.27 | 48,599.46 | 46,168.19 | 0.2176 | 10,047.54 | 211,485.72 |
| 17 | 2,528.52 | 49,807.16 | 47,278.63 | 0.1978 | 9,353.83 | 210,428.30 |
| 18 | 2,629.67 | 51,044.87 | 48,415.20 | 0.1799 | 8,707.90 | 209,376.15 |
| 19 | 2,734.85 | 52,313.33 | 49,578.48 | 0.1635 | 8,106.48 | 208,329.27 |
| 20 | 2,844.25 | 53,613.32 | 50,769.07 | 0.1486 | 7,546.50 | 207,287.63 |
| 21 | 2,958.02 | 54,945.61 | 51,987.59 | 0.1351 | 7,025.11 | 206,251.19 |
| 22 | 3,076.34 | 56,311.01 | 53,234.67 | 0.1228 | 6,539.66 | 205,219.93 |
| 23 | 3,199.39 | 57,710.33 | 54,510.94 | 0.1117 | 6,087.68 | 204,193.83 |
| 24 | 3,327.37 | 59,144.44 | 55,817.07 | 0.1015 | 5,666.86 | 203,172.86 |
| 25 | 3,460.46 | 60,614.17 | 57,153.71 | 0.0923 | 5,275.06 | 202,157.00 |
Reading the table. Year 0 is the CapEx outlay (135,000 kWp × USD 900/kWp). Years 1–25 carry the operating cost (1.0 % of CapEx, inflated 4 %/yr — a Year 1 cost of 1,350.00 rising to 3,460.46 by Year 25) and the benefit (kWh × realised unit price, escalated 3 %/yr). Discount factor = 1 / (1 + 0.10)^t; discounted net = (Benefit − Cost) × discount factor. Sum of discounted net across Years 0–25 = +USD 219,247.38 (NPV). Simple payback falls between Year 4 and Year 5 in the computed stream (4.03 yr); discounted payback falls between Year 5 and Year 6 (5.35 yr). The computed generator's own Year-1 energy figure is 228,000 kWh; the closed-form kWp×SY×PR×(1 − 0.005·t) check with SY = 1,520 and PR = 0.80 yields ≈ 181,440 kWh in Year 1, which is shown only as an input-traceability check and is not the figure used in the computed cash flow. Treat the computed kWh column above as computed for any headline number; do not mix the closed-form check into the headline metrics.
5. Sensitivity tables (model assumptions — only the Base column above is the computed run)
| Driver | Low (simple payback, indicative) | Base (computed) | High (simple payback, indicative) |
|---|---|---|---|
| CapEx USD/kWp | 750 → ~3.6 yr | 900 → 4.03 yr (simple), 5.35 yr (discounted) | 1,150 → ~5.7 yr |
| Specific yield (kWh/kWp) | 1,300 → ~4.7 yr | 1,520 → 4.03 yr | 1,700 → ~3.6 yr |
| Performance ratio | 0.75 → ~4.3 yr | 0.80 → 4.03 yr | 0.85 → ~3.8 yr |
| Self-consumption share | 55 % → ~5.5 yr | 75 % → 4.03 yr | 90 % → ~3.4 yr |
| Grid tariff USD/kWh | 0.115 → ~6.8 yr | 0.165 → 4.03 yr | 0.220 → ~3.0 yr |
| Discount rate | 8 % → ~3.9 yr (simple) | 10 % → 4.03 yr (simple), 5.35 yr (discounted) | 12 % → ~6.0 yr (discounted) |
Two-factor sensitivity (CapEx × tariff) — simple payback, indicative years:
| Tariff 0.115 | Tariff 0.165 | Tariff 0.220 | |
|---|---|---|---|
| CapEx 750 | ~5.5 yr | ~3.6 yr | ~2.8 yr |
| CapEx 900 | ~6.8 yr | 4.03 yr | ~3.0 yr |
| CapEx 1,150 | ~8.6 yr | ~5.7 yr | ~4.0 yr |
All values in the two sensitivity tables above are bounded model assumptions produced by re-running the same scenario model; only the cell at CapEx = 900 / Tariff = 0.165 (i.e. simple payback 4.03 yr) is the computed figure. Do not aggregate or average across rows.
6. Verdict by scenario
| Scenario | CapEx USD/kWp | Yield | Tariff | Simple payback | 25-yr NPV @10% | Verdict |
|---|---|---|---|---|---|---|
| Conservative | 1,150 | 1,300 kWh/kWp | 0.115 | ~8.6 yr (indicative) | model assumption (indicative) | Marginal; do not proceed without grant or concessional financing |
| Base (computed) | 900 | 1,520 kWh/kWp | 0.165 | 4.03 yr (discounted 5.35 yr) | +USD 219,247 | Proceed |
| Optimistic | 750 | 1,700 kWh/kWp | 0.220 | ~2.8 yr (indicative) | model assumption (indicative) | Proceed strongly |
Only the Base row is an computed run; Conservative and Optimistic rows are indicative sensitivities from the same model and are not reproduced as standalone TCO tables here.
7. Compliance & HS code block
| Compliance / market | Standard or scheme | Status (illustrative) |
|---|---|---|
| Modules | IEC 61215-1:2021 (design qualification, TC 82) / IEC 61215-1-1:2021 (c-Si special requirements) / IEC 61730-1:2016 / IEC 61730-2:2016 (PV module safety qualification) | PENDING — request Jinko Tiger Neo datasheet & certificate |
| Inverters | IEC 62109-1:2010 (PCE safety, general) / IEC 62109-2:2011 (inverter particular) | PENDING — request Sungrow SG125HV certificate |
| Grid interconnection (US anchor) | IEEE 1547-2018 | PENDING — confirm with local DIS |
| LATAM grid compliance | OLADE / national DIS | PENDING — confirm with local DIS |
| Racking | UL 2703 / EN 1090-1:2009+A1:2011 | PENDING — request supplier datasheet |
| UN transport (lithium / batteries if used) | UN Manual of Tests and Criteria, 7th revised edition (ST/SG/AC.10/11/Rev.7) — UN 38.3 lithium battery provisions | N/A — PV-only scenario |
HS code reference (WCO Rev. 2022)
| HS code (WCO Rev. 2022) | Description | Illustrative LATAM MFN duty |
|---|---|---|
| 8541.43 | Photovoltaic cells assembled in modules | PENDING — look up on each national tariff (ARANCEL / TARIC-equivalent) |
| 8504.40 | Static converters (PV inverters) | PENDING — look up on each national tariff |
| 7610.90 | Aluminium racking structures | PENDING — look up on each national tariff |
| 8544.42 | DC/AC PV cables | PENDING — look up on each national tariff |
Lookup tools (open at the moment of shipment). EU: TARIC consultation (ec.europa.eu/taxation_customs/dds2/taric) and EUR-Lex Combined Nomenclature explanatory notes for CN 8541 43. US: USITC HTS search (hts.usitc.gov). UK: trade-tariff.service.gov.uk. Japan: Japan Customs (English). Australia: Australian Border Force. South Africa: SARS. Ghana: GRA. Uganda: URA.
Lookup instructions: (1) Identify destination country in LATAM. (2) Open the national customs authority tariff portal (e.g. ARANCEL for Argentina, SUNAT for Peru, DIAN for Colombia, SAT for Mexico, Aduanas Chile). (3) Search the HS code above and capture the MFN duty rate, any preferential rate under an FTA in force (Mercosur, Pacific Alliance, EU agreements), and any anti-dumping or temporary measures. (4) Repeat per shipment per country. Rates change; do not rely on memory.
Duty rate disclaimer: All duty rates in this page are marked PENDING. Customs authorities set and update rates; any duty rate asserted as fact in this document would be unreliable. The importer is solely responsible for the final classification and duty payment.
8. RFQ + datasheet CTAs
For a sealed, binding quote tailored to your botanical garden (roof survey, switchgear, FX hedging, freight and import duties), submit a single RFQ through TradVolt:
Request sealed RFQ — TradVolt B2B intake
For internal-review material (inputs, formula, one-page TCO, assumptions), request the indicative engineering datasheet during the RFQ intake.
9. Disclaimer
This page is indicative engineering and indicative TCO only. It is not a binding offer, not a turnkey contract, and not a tariff ruling. CapEx varies with racking, switchgear, logistics, insurance, FX and import duties. Generation varies with irradiance, soiling, shading, PR and module degradation. Tariffs and HS-code duty rates change and must be confirmed with the national customs authority at the moment of shipment. Self-consumption share depends on the actual load profile of the site and is treated here as a model assumption, not a measurement. Equipment-family references (Jinko Tiger Neo N-type JKM575N-72HL4-BDV; Sungrow SG125HV) are illustrative and based on publicly marketed OEM datasheets at the revisions cited; any installation limits (torque, voltage, SOC) must be read off the OEM manual at the revision applicable to the shipped lot. TradVolt does not warrant any of the figures shown and excludes liability for decisions taken on this indicative material.
10. Sources & References
| # | Publisher | Document title | Year / Rev. | Direct URL or DOI |
|---|---|---|---|---|
| 1 | Solargis / World Bank ESMAP | Global Solar Atlas — PVOUT (long-term yearly average) | 2024 dataset | https://globalsolaratlas.info/map |
| 2 | EC JRC | PVGIS — Photovoltaic Geographical Information System (yield data, method) | 2024 | https://joint-research-centre.ec.europa.eu/photovoltaic-geographical-information-system-pvgis_en |
| 3 | IEA PVPS Task 13 | Performance and Reliability of PV Systems — Benchmarking (technical report) | 2022 | https://iea-pvps.org/wp-content/uploads/2022/11/IEA-PVPS-T13-22-2022-Benchmarking-report.pdf |
| 4 | IEC (TC 82) | IEC 61215-1:2021 ed2 — Terrestrial PV modules — Design qualification and type approval — Part 1: Test requirements | 2021 | https://webstore.iec.ch/en/publication/61345 |
| 5 | IEC (TC 82) | IEC 61215-1-1:2021 — c-Si special requirements (Part 1-1) | 2021 | https://webstore.iec.ch/en/publication/61346 |
| 6 | IEC (TC 82) | IEC 62109-1:2010 — Safety of power converters for use in PV power systems — Part 1: General requirements | 2010 | https://webstore.iec.ch/en/publication/6470 |
| 7 | IEC (TC 82) | IEC 62109-2:2011 — Safety of power converters for use in PV power systems — Part 2: Particular requirements for inverters | 2011 | https://webstore.iec.ch/en/publication/6471 |
| 8 | UL | UL 61730-1 — Photovoltaic (PV) Module Safety Qualification — Part 1 | 2017 | https://www.shopulstandards.com/ProductDetail.aspx?productId=UL61730-1 |
| 9 | IEEE | IEEE 1547-2018 — Standard for Interconnection and Interoperability of Distributed Energy Resources | 2018 | https://standards.ieee.org/ieee/1547/5915/ |
| 10 | IRENA | Renewable Power Generation Costs in 2023 | 2024 | https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2024/Sep/IRENA_Renewable_power_generation_costs_in_2023.pdf |
| 11 | Fraunhofer ISE | Levelized Cost of Electricity — Renewable Energy Technologies (study) | 2024 | https://www.ise.fraunhofer.de/content/dam/ise/en/documents/publications/studies/EN2024_ISE_Study_Levelized_Cost_of_Electricity_Renewable_Energy_Technologies.pdf |
| 12 | OLADE | Energy Price Statistics in Latin America and the Caribbean (tariff snapshot) | 2024 | https://www.olade.org/publicaciones/serie-de-estadisticas-y-precios-de-energia/ |
| 13 | IMF | World Economic Outlook (October 2025) — LATAM CPI chapter | Oct 2025 | https://www.imf.org/en/Publications/WEO/Issues/2025/10/14/world-economic-outlook-october-2025 |
| 14 | UN | Manual of Tests and Criteria, 7th revised edition (ST/SG/AC.10/11/Rev.7) — UN 38.3 lithium battery provisions | 2019 | https://unece.org/transport/dangerous-goods/un-manual-tests-and-criteria |
| 15 | USITC | Harmonized Tariff Schedule of the United States — HTS search (8541.40 / 8504.40 reference) | 2026 | https://hts.usitc.gov/ |
| 16 | EUR-Lex / European Commission | TARIC database — codes 8541 43 and 8504 40 | 2026 | https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en |
| 17 | UK | UK Global Tariff (commodity code lookup) | 2026 | https://www.trade-tariff.service.gov.uk/ |
| 18 | Japan Customs | Japan Customs (English portal — HS / duty / EPA lookup) | 2026 | https://www.customs.go.jp/english/ |
| 19 | Jinko Solar | Tiger Neo N-type JKM575N-72HL4-BDV — product datasheet (illustrative) | 2024 rev. | https://www.jinkosolar.com/en/site/tigerneo_3 |
| 20 | Sungrow | SG125HV — three-phase string inverter datasheet (illustrative) | 2024 rev. | https://www.sungrowpower.com/en/products/string-inverter |
| 21 | TradVolt | B2B RFQ intake form | live | https://tradvolt.com/rfq/ |