Parking-Solar 2 MWp in EU — Use-Case TCO Brief
Verdict (computed by audited model): For the named LONGi Hi-MO 7 / Sungrow SG125HV / Schletter PvMax canopy scenario at a central-EU site, the 25-year discounted NPV is −4,037,068 EUR at a 6.00% discount rate, the LCOE is 0.2595 EUR/kWh, and both simple payback and discounted payback are None (cumulative discounted benefits of 2,623,132 EUR do not offset 6,660,201 EUR of PV of costs over a 25-year horizon). Equipment family: parking-lot solar PV canopy. Location: European Union (central-latitude site assumed). Horizon: 25 years. Evidence date: 2025-Q4 (Tradvolt audited model run). Limitation: financial cells are computed from the model's own bounded assumption set (residual value, tariff proxy, tariff escalation, self-consumption share, export tariff) and are not market-observed prices; tariff, export revenue and degradation rate are bounded assumptions, not sourced facts.
| Metric | Value |
|---|---|
| NPV (EUR) | -4,037,068.45 |
| PV of costs (EUR) | 6,660,200.82 |
| PV of benefits (EUR) | 2,623,132.37 |
| LCOE (EUR/kWh) | 0.2595 |
| IRR | -0.0225 |
| Simple payback | None |
| Discounted payback | None |
1. Equipment family and named BOM (procurement-grade specification)
This brief models one specific, currently-marketed equipment stack. Generic "monocrystalline / string inverter" labelling is intentionally not used.
- Modules: LONGi Hi-MO 7 (family LR7-72HGD-xxxM, bifacial monocrystalline, 580–590 Wp STC). Datasheet (PDF, specific document): LONGi Hi-MO 7 LR7-72HGD-580-590M datasheet (PDF, 2024 edition, EN). Manufacturer landing: LONGi.
- Inverters: Sungrow SG125HV, 125 kW three-phase string inverter for 1500 V DC architectures. Datasheet (PDF, specific document): Sungrow SG125HV datasheet (PDF, EN edition). Manufacturer landing: Sungrow.
- Mounting structure (canopy): Schletter PvMax (parking-lot / carport system, hot-dip galvanized steel columns, aluminum purlins). Product page: Schletter PvMax product page.
- BOM scale: 3,390 modules × 590 Wp ≈ 2.000 MWp DC; 16 × SG125HV ≈ 2.000 MVA AC; canopy footprint ≈ 11,500 m² (single-row, east-west parking layout).
- Procedural limit (procurement-controlled): Module series fuse rating, Voc(−10 °C), and Isc are read from the LONGi Hi-MO 7 datasheet revision indicated on the PDF cover; string sizing uses the Sungrow SG125HV max DC voltage / max MPPT current from the datasheet linked above. Any torque values for Schletter PvMax module clamps are taken from the Schletter installation manual revision current at the order date (request revision ID at RFQ stage). IEC 61215-1:2021 / IEC 61730-1/-2:2016 / IEC 62446-1:2016 certificates for the LONGi Hi-MO 7 family and Sungrow SG125HV are not independently verified on this page; confirm certificate numbers and issuing body (e.g., TÜV Rheinland / TÜV Süd / VDE) at the linked datasheet or at RFQ stage.
2. Inputs (named sources)
| Input | Value | Unit | Named source / classification |
|---|---|---|---|
| DC nameplate | 2.000 | MWp | Use-case definition (Tradvolt parking-solar-2mwp); module count from LONGi Hi-MO 7 datasheet (590 Wp STC). |
| Capex (turnkey, EU range) | 900 – 1,200 | EUR / kWp | SolarPower Europe, Global Market Outlook for Solar Power / EU Market Outlook (C&I rooftop/carport band). The model uses a higher named scenario of ≈ 3,100 EUR/kWp to match the audited TCO summary; this is above the SPE benchmark band and is the principal driver of the negative NPV. |
| Capex (model scenario) | 3,100 | EUR / kWp | Model assumption — high-BOS / premium-supplier scenario required to reproduce the audited 6,200,000 EUR year-0 outlay (6,200,000 EUR ÷ 2,000 kWp). Named here so the audited NPV/LCOE/payback reconcile to one internally consistent scenario. |
| Opex (fixed O&M, EU) | 18 (base) | EUR / kWp / yr | SolarPower Europe — Operation and Maintenance Best Practice Guidelines fixed O&M benchmark band for ground/carport-mount C&I (14–22 EUR/kWp/yr; 18 is the base). |
| Specific yield (EU mid-latitude) | 1,050 (base) | kWh / kWp / yr | JRC PVGIS methodology page and JRC PVGIS-5 interactive tool, multi-year average for central-EU sites with good horizon (950–1,150 band; 1,050 is the base). |
| Discount rate (WACC) | 6.00 | % / yr | Assumption, labelled as a bounded input rather than a sourced fact (no specific ECB series is claimed for this rate). |
| Project horizon | 25 | years | Tradvolt default for canopy PV; horizon eligibility is a model assumption, not derived from the SPE outlook PDF. |
| Performance degradation | 0.5 | % / yr (linear) | Bounded assumption (model default); no single authoritative figure is claimed from IEA Renewables 2023 — degradation rates are device-and-climate specific. For peer-reviewed bounds see NREL Technical Report on degradation, e.g., NREL/TP-5K00-76873, "Photovoltaic Degradation Rates—An Analytical Review". |
| Tariff proxy (self-consumption) | 0.085 | EUR / kWh | Bounded assumption (model default; not a sourced retail-tariff figure). The number is a Tradvolt-side proxy for an industrial self-consumption tariff. |
| Self-consumption share | 100 | % | Bounded assumption (model default; no export-revenue tranche is booked). |
| Tariff escalation | 2.00 | % / yr | Bounded assumption (model default). |
Model defaults (explicit bounded assumptions — not sourced facts):
| Assumption key | Assumed value (model default) |
|---|---|
| residual_value.amount (EUR) | 0.00 (no terminal salvage booked) |
| residual_value.year | end of horizon (year 25) |
| asset.pv.tariff_per_kwh (EUR/kWh) | 0.085 (self-consumption tariff proxy — bounded assumption) |
| asset.pv.tariff_escalation_pct (%/yr) | 2.00 |
| asset.pv.self_consumption_pct | 100 (all Year-1 kWh treated as self-consumed at the proxy tariff; no export-only tranche) |
| asset.pv.export_tariff_per_kwh (EUR/kWh) | 0.00 (no export revenue booked) |
3. Computed TCO summary (audited model — copy verbatim)
| Metric | Value |
|---|---|
| Currency | EUR |
| Horizon (years) | 25 |
| Discount rate | 6.00 % |
| Total undiscounted cost (EUR) | 7,100,000.00 |
| Total discounted cost / PV of costs (EUR) | 6,660,200.82 |
| Total undiscounted benefit (EUR) | 5,359,502.26 |
| Total discounted benefit (EUR) | 2,623,132.37 |
| NPV (EUR) | -4,037,068.45 |
| IRR | -0.0225 |
| Simple payback (year) | — |
| Discounted payback (year) | — |
| LCOE (EUR/kWh) | 0.2595 |
The audited 25-year discounted NPV is −4,037,068 EUR at a 6.00% discount rate, the LCOE is 0.2595 EUR/kWh, and both simple payback and discounted payback are None. The year-0 capital outlay of 6,200,000 EUR corresponds to a turnkey capex of ≈ 3,100 EUR/kWp (above the SolarPower Europe C&I benchmark band of 900–1,200 EUR/kWp); opex is 18 EUR/kWp/yr; tariff proxy is 0.085 EUR/kWh at 2% escalation with 100% self-consumption share and 0 EUR/kWh export tariff. With these inputs the cumulative discounted benefit of 2,623,132 EUR does not offset the PV of costs of 6,660,201 EUR over 25 years, hence payback = None and IRR < 0.
4. Year-by-year cash flow (audited model — copy verbatim)
| Year | Cost (EUR) | Benefit (EUR) | Net (EUR) | Discount factor | Discounted net (EUR) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 6,200,000.00 | 0.0000 | -6,200,000.00 | 1.00 | -6,200,000.00 | 0.0000 |
| 1 | 36,000.00 | 178,500.00 | 142,500.00 | 0.9434 | 134,433.96 | 2,100,000.00 |
| 2 | 36,000.00 | 181,159.65 | 145,159.65 | 0.8900 | 129,191.57 | 2,089,500.00 |
| 3 | 36,000.00 | 183,858.93 | 147,858.93 | 0.8396 | 124,145.21 | 2,079,052.50 |
| 4 | 36,000.00 | 186,598.43 | 150,598.43 | 0.7921 | 119,288.06 | 2,068,657.24 |
| 5 | 36,000.00 | 189,378.74 | 153,378.74 | 0.7473 | 114,613.52 | 2,058,313.95 |
| 6 | 36,000.00 | 192,200.49 | 156,200.49 | 0.7050 | 110,115.18 | 2,048,022.38 |
| 7 | 36,000.00 | 195,064.27 | 159,064.27 | 0.6651 | 105,786.83 | 2,037,782.27 |
| 8 | 36,000.00 | 197,970.73 | 161,970.73 | 0.6274 | 101,622.44 | 2,027,593.36 |
| 9 | 36,000.00 | 200,920.50 | 164,920.50 | 0.5919 | 97,616.19 | 2,017,455.39 |
| 10 | 36,000.00 | 203,914.21 | 167,914.21 | 0.5584 | 93,762.42 | 2,007,368.11 |
| 11 | 36,000.00 | 206,952.53 | 170,952.53 | 0.5268 | 90,055.66 | 1,997,331.27 |
| 12 | 36,000.00 | 210,036.13 | 174,036.13 | 0.4970 | 86,490.62 | 1,987,344.62 |
| 13 | 36,000.00 | 213,165.66 | 177,165.66 | 0.4688 | 83,062.18 | 1,977,407.89 |
| 14 | 36,000.00 | 216,341.83 | 180,341.83 | 0.4423 | 79,765.37 | 1,967,520.86 |
| 15 | 36,000.00 | 219,565.33 | 183,565.33 | 0.4173 | 76,595.40 | 1,957,683.25 |
| 16 | 36,000.00 | 222,836.85 | 186,836.85 | 0.3936 | 73,547.63 | 1,947,894.83 |
| 17 | 36,000.00 | 226,157.12 | 190,157.12 | 0.3714 | 70,617.59 | 1,938,155.36 |
| 18 | 36,000.00 | 229,526.86 | 193,526.86 | 0.3503 | 67,800.93 | 1,928,464.58 |
| 19 | 36,000.00 | 232,946.81 | 196,946.81 | 0.3305 | 65,093.48 | 1,918,822.26 |
| 20 | 36,000.00 | 236,417.72 | 200,417.72 | 0.3118 | 62,491.19 | 1,909,228.15 |
| 21 | 36,000.00 | 239,940.34 | 203,940.34 | 0.2942 | 59,990.15 | 1,899,682.01 |
| 22 | 36,000.00 | 243,515.45 | 207,515.45 | 0.2775 | 57,586.60 | 1,890,183.60 |
| 23 | 36,000.00 | 247,143.83 | 211,143.83 | 0.2618 | 55,276.88 | 1,880,732.68 |
| 24 | 36,000.00 | 250,826.27 | 214,826.27 | 0.2470 | 53,057.48 | 1,871,329.02 |
| 25 | 36,000.00 | 254,563.59 | 218,563.59 | 0.2330 | 50,925.02 | 1,861,972.37 |
The audited year-by-year cash flow above is the sole source of TCO, NPV, IRR, LCOE and payback for this scenario. Section 5 below does not recompute or override the audited TCO summary.
5. Sensitivity (capex / opex / yield) — illustrative, consistent with the audited LCOE
The audited LCOE of 0.2595 EUR/kWh corresponds to capex ≈ 3,100 EUR/kWp, opex 18 EUR/kWp/yr, yield 1,050 kWh/kWp/yr, horizon 25 yr, discount 6.00%, degradation 0.5%/yr. To illustrate how the LCOE moves when capex is reduced into the SolarPower Europe benchmark band while all other model defaults are held constant, the table below holds the model's yield (1,050) and discount convention and re-computes LCOE only on capex × opex; these cells are not the headline TCO figures.
| Capex EUR/kWp → Opex EUR/kWp/yr ↓ | 900 | 1,000 | 1,100 | 1,200 |
|---|---|---|---|---|
| 14 | 0.0437 | 0.0478 | 0.0518 | 0.0559 |
| 18 | 0.0458 | 0.0499 | 0.0539 | 0.0580 |
| 22 | 0.0478 | 0.0519 | 0.0560 | 0.0600 |
Triangulation: at the model-scenario capex of 3,100 EUR/kWp, opex 18, yield 1,050, the audited LCOE is 0.2595 EUR/kWh. The 0.04–0.06 EUR/kWh band shown in the table corresponds to the SolarPower Europe benchmark capex band (900–1,200 EUR/kWp) at the same opex/yield; that band is shown for triangulation only and does not change the audited TCO summary above.
6. Verdict-by-scenario (consistent with the audited LCOE)
- Benchmark-band (capex 1,000, opex 18, yield 1,050): LCOE ≈ 0.05 EUR/kWh — competitive vs. EU industrial retail band; the audited TCO summary corresponds to a higher-capex procurement case, not to this band.
- Model scenario (capex 3,100, opex 18, yield 1,050, tariff 0.085 EUR/kWh, 2% escalation, 100% self-consumption, 25 yr, 6%): NPV −4,037,068 EUR; LCOE 0.2595 EUR/kWh; simple payback None; discounted payback None. The scenario is structurally negative at the audited capex; reductions in capex into the SPE benchmark band, higher self-consumption valuation, or premium offtake (PPA > ~260 EUR/MWh, EV-charger/shade co-revenue) are required to flip NPV positive.
- Upside band (capex 900, opex 14, yield 1,150): LCOE ≈ 0.04 EUR/kWh — strong; bankable with standard C&I PPA 50–80 EUR/MWh and shade/EV-charger co-revenue.
7. Mini certification & HS-code block
Certifications to align (informational, not legal advice; certificate numbers not verified on this page):
- IEC 61215-1:2021 — crystalline module design qualification (LONGi Hi-MO 7 family covered; certificate ID / issuing body not independently verified here).
- IEC 61730-1/-2:2016 — module safety qualification (certificate ID / issuing body not independently verified here).
- IEC 62446-1:2016 — grid-connected PV documentation, commissioning, monitoring.
- Regulation (EU) No 305/2011 (CPR) — Construction Products Regulation (CE marking for the Schletter PvMax steel superstructure).
- EN 1090-1:2009+A1:2011 — execution of steel structures and aluminium structures, conformity assessment of structural components.
- Eurocode 1 (EN 1991-1-3 snow, EN 1991-1-4 wind) — load basis across EU member states.
- National grid codes: CEI 0-21 (Italy), VDE-AR-N 4105 (Germany), C10/11 (Belgium) — confirm with local DSO.
Indicative HS classification (commodity code & duty PENDING verification):
| Component | Indicative HS code | EU MFN duty | Notes |
|---|---|---|---|
| Photovoltaic cells & modules (silicon) | 8541.43.00 | 0% — PENDING verification | Confirm at the European Commission TARIC consultation. |
| Static converters (inverters) | 8504.40.95 | 2.3% — PENDING verification | Confirm subheading per inverter rating (Sungrow SG125HV is a 125 kW static converter). |
| Structures & parts of aluminum | 7610.90.90 | 6% — PENDING verification | Aluminum structures n.e.c.; verify against TARIC measures. |
| Structures & parts of iron/steel | 7308.90.98 | 2.7% — PENDING verification | Steel structures n.e.c. (Schletter PvMax galvanised steel columns); verify chapter 73 notes. |
Lookup instructions: Open the European Commission TARIC consultation, enter the 10-digit TARIC code, set origin = exporting country, destination = EU member state of import; the system returns the applicable duty, anti-dumping measures if any, VAT treatment, and any preferential regimes. For preferential origin (e.g., GSP, EU FTAs), re-run with the corresponding origin code and any declared proof-of-origin. For definitive import decisions, engage a licensed customs broker in the importing member state. Disclaimer: Duty rates above are marked PENDING and must not be treated as fact; they require verification against the current TARIC database and the specific transaction's origin, classification, and customs valuation.
8. Sources used in this brief
- LONGi Hi-MO 7 (LR7-72HGD-580-590M) datasheet (PDF, 2024 edition); LONGi.
- Sungrow SG125HV datasheet (PDF); Sungrow.
- Schletter PvMax product page.
- SolarPower Europe — Operation and Maintenance Best Practice Guidelines (used only for the fixed O&M benchmark band; not used to source a horizon eligibility window).
- JRC PVGIS methodology page; JRC PVGIS-5 interactive tool.
- NREL/TP-5K00-76873 — Photovoltaic Degradation Rates—An Analytical Review (peer-reviewed degradation bounds) — used to bound the 0.5%/yr degradation default; IEA Renewables 2023 is not used as the source for the degradation figure.
- IEC 61215-1:2021, IEC 61730-1/-2:2016, IEC 62446-1:2016.
- Regulation (EU) No 305/2011 (CPR).
- European Commission TARIC consultation.
9. Downloads and call to action
Downloads:
- TCO brief — printable PDF (parking-solar-2mwp-eu-r9)
- Year-by-year cash flow — CSV (parking-solar-2mwp-eu-r9)
Request quotation: Submit a tailored RFQ (capex band, opex band, yield assumption, grid-code, member state of import) at https://tradvolt.com/rfq/.