Tradvolt › Solar Import Guide › 580W Commercial Rooftop — Czechia

Import 580W Solar Panels from China to Czechia — Commercial Rooftop TCO & Landed Cost Blueprint

Verdict. A 290 kWp commercial rooftop in Czechia built with Jinko Tiger Neo JKM580N-72HL4-BDV modules and Sungrow SG250HX string inverters, imported from China under typical CN→CZ landed-cost terms, returns NPV = 313,001 EUR, simple payback = 4.70 yr, discounted payback = 6.10 yr, IRR = 21.67 %, and LCOE = 0.0673 EUR/kWh over a 25-year horizon at 8.00 % discount. Equipment: Jinko Tiger Neo JKM580N-72HL4-BDV modules + Sungrow SG250HX inverters. Location: Czechia (290 kWp commercial rooftop). Horizon: 25 years. Evidence date: 2026-09-22. Limitation: numeric values come from the computed Tradvolt TCO model and the inputs in §3 only; do not transpose to other equipment, roofs or tariffs without rerunning the model.

Decision summary — 290 kWp CN→CZ commercial rooftop, 25-year horizon
Decision metricValueSource
Project290 kWp commercial rooftop, CzechiaInputs §3
ModuleJinko Tiger Neo 580 W — JKM580N-72HL4-BDVJinkoSolar product page
InverterSungrow SG250HX (250 kW, 12 MPPT, 1500 V DC)Sungrow product page
Horizon25 yrModel assumption (bounded)
Discount rate8.00 %Model assumption (bounded)
Total undiscounted cost220,000.00 EURscenario TCO model
PV of costs (discounted)220,000.00 EURscenario TCO model
Total undiscounted benefit1,296,174.44 EURscenario TCO model
PV of benefits (discounted)533,001.35 EURscenario TCO model
NPV313,001.35 EURscenario TCO model
IRR0.2167scenario TCO model
Simple payback4.70 yrscenario TCO model
Discounted payback6.10 yrscenario TCO model
LCOE0.0673 EUR/kWhscenario TCO model

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1. Bundle definition (module + inverter pair)

The arithmetic in §3 is anchored on a real, publicly marketed OEM pairing. SKU-level certificate numbers and the issuing notified body are listed in §4. Substitute components only after re-running the scenario TCO model.

Equipment bundle
RoleModelFamilyOEM landing page
PV moduleJKM580N-72HL4-BDV (Tiger Neo, n-type TOPCon, 580 Wp, 144 cells, 1500 V DC, mc4)Jinko Tiger Neo 580WJinkoSolar
String inverterSG250HX (250 kW, 3-phase, 12 MPPT, 1500 V DC, IP66)Sungrow 1500 V DC commercial stringSungrow string inverter range
Mounting (informational)K2 Systems N-Rack ground-mount / S-Rack rail (commercial flat/pitched roof)K2 SystemsK2 Systems N-Rack system

2. CapEx structure

CapEx is a single illustrative 220,000 EUR lump placed at t=0 in the scenario model. Line-item allocation below is presented as a procurement checklist; the COMMITTED TCO value is the 220,000 EUR total only — do not sum the placeholder line items to that total.

CapEx line-item checklist (placeholder unit prices — RFQ to bind)
Line itemQuantityUnit price (EUR)Subtotal (EUR)Source / note
Jinko Tiger Neo JKM580N-72HL4-BDV500 pcs (290 kWp)RFQRFQJinkoSolar product page
Sungrow SG250HX string inverter1 pc (250 kW)RFQRFQSungrow product page
K2 Systems racking + rail kit (commercial roof)1 lotRFQRFQK2 Systems
DC cabling, AC cabling, conduit, mc41 lotRFQRFQPer BoS layout
Combiner box, SPD, AC/DC disconnects, rapid shutdown1 lotRFQRFQPer BoS layout
Monitoring / data logger (Sungrow iSolarCloud gateway)1 lotRFQRFQSungrow
Sea freight CN → Hamburg/Bremerhaven (FCL)1 shipmentRFQRFQFIATA forwarder quote
Inland haulage port → project site, CZ1 shipmentRFQRFQForwarder quote
Marine insurance (Institute Cargo Clauses (A)) — model assumption, bounded1 policybounded assumptionbounded assumptionIUA policy clauses library
EU customs duty (HS 8541.43 — see §5)1 lotTARIC lookupTARIC lookupEU TARIC consultation
Czech VAT (DPH)1 lotFinanční správa lookuplookupFinanční správa
Customs broker fee1 lotRFQRFQBroker quote
EPC install, commissioning, grid hook-up1 projectRFQRFQEPC quote
Total CapEx committed to TCO model220,000.00 EURscenario TCO model input

Claim rows — CapEx structure & bundle

ClaimSrc: NAMEURLaccessed
Jinko Tiger Neo 580 W product family exists and is publicly marketed.JinkoSolar — Tiger Neo product pagehttps://www.jinkosolar.com/en/2026-09-22
Sungrow SG250HX is a publicly marketed 250 kW three-phase, 1500 V DC string inverter in the Sungrow commercial string inverter range.Sungrow Power — string inverter rangehttps://www.sungrowpower.com/en/products/string-inverter2026-09-22
K2 Systems markets rail-based PV mounting systems for commercial roofs (N-Rack / S-Rack).K2 Systems — N-Rack system pagehttps://k2-systems.com/en/product-solutions/k2-n-rack-system/2026-09-22
CapEx is presented as an illustrative 220,000 EUR lump in the scenario TCO model.Tradvolt scenario TCO modelhttps://tradvolt.com/rfq/ (model inputs disclosed on request)2026-09-22
Marine cargo insurance under Institute Cargo Clauses (A) is the canonical all-risks marine cargo cover.IUA — Institute Cargo Clauses (A) clauses libraryhttps://www.iua.co.uk/clauses2026-09-22
CN→EU PV module shipments are commonly booked CIF Hamburg/Bremerhaven with inland haulage, DAP project-site CZ, or CIP Praha per ICC Incoterms 2020.ICC — Incoterms 2020 ruleshttps://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/2026-09-22

3. TCO model — inputs, cash-flow table, summary

3.1 Model inputs (the only inputs the scenario TCO model used)

Model inputs (bounded assumptions where the draft did not state a value)
InputValueUnitClass
ModuleJinko Tiger Neo JKM580N-72HL4-BDV (580 Wp)—OEM selection
InverterSungrow SG250HX (250 kW, 1500 V DC, 12 MPPT)—OEM selection
Module count500pcsModel assumption (bounded)
System size500 × 580 / 1000 = 290kWpComputed
Specific yield (CZ commercial roof)1,100kWh/kWp/yrModel assumption (bounded — PVGIS-class)
Self-consumption ratio70%Model assumption (bounded — commercial day-load profile)
Import tariff0.18EUR/kWhModel assumption (bounded — CZ commercial band)
Export tariff / compensation0.06EUR/kWhModel assumption (bounded)
PV module annual degradation0.5%/yrModel assumption (bounded — TOPCon class)
Tariff escalation1.0%/yrModel assumption (bounded)
CapEx (illustrative lump at t=0)220,000.00EURModel assumption (bounded)
Fixed annual opex0.00EUR/yrModel assumption (bounded — fixed opex dropped for this summary)
Replacement reserve at year 12DROPPED-ITEMEURModel assumption (bounded — inverter mid-life replacement dropped)
Residual value0.00EUR at horizon endModel assumption (bounded — residual dropped)
Horizon25yearsModel assumption (bounded)
Discount rate8.00%Model assumption (bounded)
Yield year 1319,000.00kWhComputed (290 × 1,100)
Year-1 benefit45,936.00EURComputed (223,300 × 0.18 + 95,700 × 0.06)

3.2 scenario TCO summary (copy verbatim)

TCO summary
MetricValue
CurrencyEUR
Horizon (years)25
Discount rate8.00 %
Total undiscounted cost (EUR)220,000.00
Total discounted cost / PV of costs (EUR)220,000.00
Total undiscounted benefit (EUR)1,296,174.44
Total discounted benefit (EUR)533,001.35
NPV (EUR)313,001.35
IRR0.2167
Simple payback (year)4.70
Discounted payback (year)6.10
LCOE (EUR/kWh)0.0673

3.3 Year-by-year cash flow (copy verbatim)

Year-by-year cash flow
YearCost (EUR)Benefit (EUR)Net (EUR)Discount factorDiscounted net (EUR)Energy (kWh)
0220,000.000.0000-220,000.001.00-220,000.000.0000
10.000045,936.0045,936.000.925942,533.33319,000.00
20.000046,391.9146,391.910.857339,773.59317,405.00
30.000046,852.3546,852.350.793837,192.91315,817.98
40.000047,317.3647,317.360.735034,779.68314,238.89
50.000047,786.9947,786.990.680632,523.02312,667.69
60.000048,261.2748,261.270.630230,412.79311,104.35
70.000048,740.2748,740.270.583528,439.48309,548.83
80.000049,224.0249,224.020.540326,594.20308,001.09
90.000049,712.5649,712.560.500224,868.66306,461.08
100.000050,205.9650,205.960.463223,255.07304,928.78
110.000050,704.2550,704.250.428921,746.19303,404.13
120.000051,207.4951,207.490.397120,335.20301,887.11
130.000051,715.7351,715.730.367719,015.77300,377.68
140.000052,229.0152,229.010.340517,781.94298,875.79
150.000052,747.3852,747.380.315216,628.17297,381.41
160.000053,270.9053,270.900.291915,549.27295,894.50
170.000053,799.6153,799.610.270314,540.36294,415.03
180.000054,333.5754,333.570.250213,596.92292,942.95
190.000054,872.8354,872.830.231712,714.70291,478.24
200.000055,417.4555,417.450.214511,889.71290,020.85
210.000055,967.4655,967.460.198711,118.26288,570.74
220.000056,522.9456,522.940.183910,396.86287,127.89
230.000057,083.9357,083.930.17039,722.27285,692.25
240.000057,650.4957,650.490.15779,091.44284,263.79
250.000058,222.6758,222.670.14608,501.55282,842.47

3.4 Sensitivity (illustrative — recomputed against the scenario model)

Sensitivities re-run the scenario TCO model with the stated Δ; only payback shifts are reported, NPV/LCOE/IRR are not restated per row. The −10 % yield row reflects the recomputed payback against the scenario model against the inputs in §3.1.

Sensitivity — payback only (NPV / IRR / LCOE not restated per row)
ScenarioΔ CapExΔ import tariffΔ yieldRecomputed simple paybackRecomputed discounted payback
Base case0%0.18 EUR/kWh1,100 kWh/kWp~4.70 yr~6.10 yr
+10 % CapEx+10%0.18 EUR/kWh1,100 kWh/kWp~5.2 yr~6.7 yr
−10 % import tariff0%0.162 EUR/kWh1,100 kWh/kWp~5.3 yr~6.9 yr
−10 % yield0%0.18 EUR/kWh990 kWh/kWp~5.2 yr~7.4 yr
Best case (CapEx −5 %, tariff +5 %, yield +5 %)−5%0.189 EUR/kWh1,155 kWh/kWp~4.0 yr~5.2 yr
Worst case (CapEx +10 %, tariff −10 %, yield −10 %)+10%0.162 EUR/kWh990 kWh/kWp~6.4 yr~9.1 yr

All numeric outputs come from the computed Tradvolt TCO model against the inputs in §3.1. Do not transpose to other equipment, roofs or tariffs without rerunning the model.

Claim rows — TCO inputs & methodology

ClaimSrc: NAMEURLaccessed
Specific yield 1,100 kWh/kWp/yr for a CZ commercial array is a bounded model assumption consistent with PVGIS-class CZ roof values.European Commission — JRC PVGIS photovoltaic calculator (PVGIS-SARAH2)https://re.jrc.ec.europa.eu/pvg_tools/en/2026-09-22
70 % self-consumption ratio is a bounded model assumption for a CZ commercial day-load profile.IEA PVPS — Trends in PV Applications 2024 (commercial PV self-consumption bands)https://iea-pvps.org/trends-reports/trends-in-pv-applications-2024/2026-09-22
CZ commercial import tariff 0.18 EUR/kWh and export compensation 0.06 EUR/kWh are bounded model assumptions within Eurostat CZ non-household electricity price band.Eurostat Data Browser — electricity prices for non-household consumers (CZ, semi-annual)https://ec.europa.eu/eurostat/databrowser2026-09-22
Illustrative CapEx 220,000 EUR is the scenario model lump input; do not sum the §2 line items to this total.Tradvolt scenario TCO modelhttps://tradvolt.com/rfq/2026-09-22
PV module annual degradation 0.5 %/yr is a bounded model assumption for the TOPCon cell class.Fraunhofer ISE — Photovoltaics Report (degradation chapter)https://www.ise.fraunhofer.de/en/publications/studies/photovoltaics-report.html2026-09-22
Tariff escalation 1.0 %/yr is a bounded model assumption (Czech long-run electricity CPI band).Eurostat Data Browser — electricity prices for non-household consumershttps://ec.europa.eu/eurostat/databrowser2026-09-22
Discount rate 8.00 % and horizon 25 yr are bounded model assumptions (commercial WACC band / PV asset life).Tradvolt scenario TCO modelhttps://tradvolt.com/rfq/2026-09-22
Fixed opex, mid-life inverter replacement and residual value are explicitly DROPPED in this summary; replace with project-specific values before any commercial decision.Tradvolt scenario TCO modelhttps://tradvolt.com/rfq/2026-09-22

4. Compliance, certifications & standards

The bundle is anchored on Jinko Tiger Neo JKM580N-72HL4-BDV (n-type TOPCon, 1500 V DC). For grid-tied commercial rooftop deployment in Czechia, the procurement team must confirm the certificate numbers and the issuing notified body for the specific production lot before award. The standards cited below are the canonical PV module/system norms; the per-SKU certificate numbers are disclosed on award and are not pre-listed here.

Applicable standards & per-SKU certificate status
Standard / instrumentDesignation + editionApplicability to bundlePer-SKU certificate number + issuing Notified Body
PV module design qualificationIEC 61215-1:2021 / IEC 61215-2:2021 (crystalline silicon, terrestrial PV modules)JKM580N-72HL4-BDVDisclosed on award — confirm with JinkoSolar product support before RFQ close
PV module safety qualificationIEC 61730-1:2016 / IEC 61730-2:2016JKM580N-72HL4-BDVDisclosed on award — confirm with JinkoSolar product support before RFQ close
PV module safety (North America cross-reference)UL 61730-1 (standard for PV module safety qualification)JKM580N-72HL4-BDVListed at UL 61730-1 product page; per-SKU cert number issued on award
PV system documentation / commissioning / inspectionIEC 62446-1:2016 (and -3 for O&M)Whole systemIEC catalogue: IEC Webstore (cite designation + edition in tender)
EU CE Declaration of ConformityLow Voltage Directive 2014/35/EUWhole system placed on EU marketOEM DoC issued on award
Czech grid connection rulesCzech TSO (ČEPS) + local DSOWhole systemPre-grid study required; ČEPS: https://www.ceps.cz/en/
Wood packaging (pallet) treatmentIPPC ISPM 15CN-origin palletsIPPC ISPM 15 standards list: https://www.ippc.int/en/core-activities/standards-setting/ispms/
Lithium battery transport (inverter auxiliary / monitoring)UN Manual of Tests and Criteria, UN 38.3 (ST/SG/AC.10/11/Rev.7)If Li-ion aux batteries presentUN Manual: UN Manual of Tests and Criteria; IATA DGR: https://www.iata.org/en/programs/cargo/dgr/

Disclaimer. This blueprint is published before a specific production lot has been allocated. The per-SKU certificate numbers and the issuing notified bodies (TÜV Rheinland / TÜV SÜD / VDE / Intertek / UL LLC etc.) are not pre-listed and must be confirmed by the procurement team against the OEM lot paperwork before the first dose of modules is released for shipment.

Claim rows — compliance

ClaimSrc: NAMEURLaccessed
IEC 61215-1:2021 / IEC 61215-2:2021 is the canonical crystalline-silicon PV module design qualification standard.IEC Webstore — publication cataloguehttps://webstore.iec.ch/2026-09-22
IEC 61730-1:2016 / IEC 61730-2:2016 is the canonical PV module safety qualification standard.IEC Webstore — publication cataloguehttps://webstore.iec.ch/2026-09-22
UL 61730-1 is the canonical North American PV module safety qualification standard.UL Standards — UL 61730-1 product pagehttps://www.shopulstandards.com/ProductDetail.aspx?productId=UL61730-12026-09-22
IEC 62446 (parts -1, -3) covers PV system documentation, commissioning, inspection and O&M.IEC Webstore — publication cataloguehttps://webstore.iec.ch/2026-09-22
Low Voltage Directive 2014/35/EU governs CE marking of electrical equipment placed on the EU market.European Commission — Single Market & CE markinghttps://single-market-economy.ec.europa.eu/single-market/ce-marking_en2026-09-22
Czech TSO (ČEPS) sets transmission-level grid connection rules.ČEPS — transmission system operatorhttps://www.ceps.cz/en/2026-09-22
IPPC ISPM 15 governs wood packaging (pallet) treatment for international shipments.IPPC — ISPM standards listhttps://www.ippc.int/en/core-activities/standards-setting/ispms/2026-09-22
UN 38.3 (UN Manual of Tests and Criteria, ST/SG/AC.10/11/Rev.7) is the canonical lithium-battery transport test regime.UNECE — UN Manual of Tests and Criteriahttps://unece.org/transport/dangerous-goods/un-manual-tests-and-criteria2026-09-22
IATA Dangerous Goods Regulations (DGR) govern air-freight classification of Li-ion cells.IATA — Dangerous Goods programmehttps://www.iata.org/en/programs/cargo/dgr/2026-09-22

5. Customs & trade — HS classification, duty, VAT

Photovoltaic cells and modules imported into the EU are classified under HS subheading 8541.43 in the EU Common Customs Tariff. The exact 10-digit TARIC measure (duty rate, any anti-dumping / surveillance measure, binding tariff information) for Czechia must be confirmed by the procurement team via the official EU TARIC consultation before quote. The WCO HS Nomenclature 2022 edition is the canonical reference for subheading 8541.43.

Customs & trade lookup paths
TopicLookup pathURLaccessed
EU TARIC lookup (HS 8541.43, duty, measures)EU TARIC consultationhttps://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en2026-09-22
HS subheading reference (8541.43 — photovoltaic cells/modules)WCO HS Nomenclature 2022 editionhttps://www.wcoomd.org/en/topics/nomenclature/instrument-and-tools/hs-nomenclature-2022-edition2026-09-22
Incoterms 2020 (CIF / DAP / CIP for CN→CZ)ICC Incoterms 2020 official ruleshttps://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/2026-09-22

Lookup PENDING: the exact CN→CZ duty rate, any anti-dumping or surveillance measure, and the Czech VAT (DPH) rate applying to the import must be confirmed via the EU TARIC consultation and the Czech tax authority before any commercial commitment.

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