Reading time ~10 min · Vertical: Logistics & Warehousing · Geography: EU-27 · Evidence date: 2026-02-12 · Limitation: model returns one base case + sensitivity; site-specific EPC pricing, DSO curtailment-share letter, and a binding TARIC ruling must be collected at RFQ stage.
Verdict (base case). GO. Over a 25-year horizon at a 6.00% discount rate, the 6,000 kWp rooftop logistics-park PV project returns NPV = 6,683,610.00 EUR, IRR = 16.84%, simple payback = 6.01 years, discounted payback = 7.60 years, LCOE = 0.0874 EUR/kWh (≈ 8.74 ct/kWh). Equipment: rooftop PV plant. Location: EU-27 logistics park. Horizon: 25 years. Evidence date: 2026-02-12. Limitation: indicative; re-run with site-specific irradiance, EPC bid and DSO tariff.
| Indicator | Value | Decision band |
|---|---|---|
| NPV (EUR) | 6,683,610.00 | Positive > 0 → GO |
| IRR | 0.1684 | > 6% WACC → GO |
| Simple payback (yr) | 6.01 | < 8 yr → GO |
| Discounted payback (yr) | 7.60 | < 10 yr → GO |
| LCOE (EUR/kWh) | 0.0874 | < industrial retail 0.22 → GO |
A logistics and distribution park covering ~90,000 m² of warehouse rooftop in the EU-27, with installed PV capacity of 6,000 kWp DC. The plant primarily self-consumes electricity for material-handling (forklifts, conveyors, cold-chain), EV yard-equipment charging, and exports residual energy under net-metering or feed-in-tariff arrangements. The system uses monocrystalline bifacial modules on a ballasted or mechanically-fixed rooftop mounting system, with string inverters sized to a DC/AC ratio of ~1.1. Grid-code compliance is assumed per EU Regulation 2016/631 (RfG) and the relevant Member-State DSO code (e.g. VDE-AR-N 4110 in Germany, CEI 0-21 in Italy).
| Input | Value | Unit | Source | Status |
|---|---|---|---|---|
| Installed capacity | 6,000 | kWp (DC) | Use-case assumption (engineering brief) | model assumption |
| Specific yield, north-EU range | 950 | kWh/kWp/yr | PVGIS-SARAH2 dataset (JRC) | cited |
| Specific yield, south-EU range | 1,200 | kWh/kWp/yr | PVGIS-SARAH2 dataset (JRC) | cited |
| Capex, low (turn-key ND-EU, >5 MWp) | 700 | EUR/kWp | SolarPower Europe — EU Market Outlook for Solar Power 2024–2028 | cited |
| Capex, base | 850 | EUR/kWp | SolarPower Europe — EU Market Outlook for Solar Power 2024–2028 | cited |
| Capex, high (constrained retrofit) | 1,150 | EUR/kWp | SolarPower Europe — EU Market Outlook for Solar Power 2024–2028 | cited |
| Opex (O&M + insurance) | 1.0 % of capex/yr | % | IRENA — Renewable Power Generation Costs in 2023 | cited |
| Inverter re-investment (year 12) | 8 % of capex | % | IRENA — Renewable Power Generation Costs in 2023 | cited |
| Module degradation | 0.5 %/yr | % | IEC 61215-1:2021 — design qualification | cited |
| Discount rate (WACC) | 6.0 % nominal | % | Tradvolt editorial assumption, mid-cap logistics balance-sheet financing | editorial |
| Economic lifetime | 25 | years | IRENA — Renewable Power Generation Costs in 2023 | cited |
| Self-consumption share | 55 % | % | Tradvolt editorial assumption for a multi-tenant logistics park on diurnal operations | editorial |
| Tariff escalation (self-consumed savings) | 1.6 %/yr nominal | % | Tradvolt editorial bounded default (illustrative; capped range 0–3 %/yr) | model assumption |
| EU industrial retail electricity, excl. VAT | 0.22 | EUR/kWh | Eurostat — electricity prices for industrial consumers (nrg_pc_204) | cited |
| Export tariff (residual self-consumed-vs-export split price) | 0.07 | EUR/kWh | Tradvolt editorial assumption (typical EU feed-in band 5–9 ct/kWh) | model assumption |
The single equipment model for this 6 MWp site is fixed at RFQ stage against an EPC bid and the DSO grid-code letter. The families named below are illustrative envelopes used to bracket capex / inverter count / mounting layout. They are not certified as the installed configuration; compliance items in §8 must be re-issued against the actual selected model before FID.
| Metric | Value |
|---|---|
| Currency | EUR |
| Horizon (years) | 25 |
| Discount rate | 6.00 % |
| Total undiscounted cost (EUR) | 7,141,545.29 |
| Total discounted cost / PV of costs (EUR) | 6,090,383.34 |
| Total undiscounted benefit (EUR) | 26,099,424.88 |
| Total discounted benefit (EUR) | 12,773,993.34 |
| NPV (EUR) | 6,683,610.00 |
| IRR | 0.1684 |
| Simple payback (year) | 6.01 |
| Discounted payback (year) | 7.60 |
| LCOE (EUR/kWh) | 0.0874 |
| Year | Cost (EUR) | Benefit (EUR) | Net (EUR) | Discount factor | Discounted net (EUR) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 5,100,000.00 | 0.0000 | -5,100,000.00 | 1.00 | -5,100,000.00 | 0.0000 |
| 1 | 51,000.00 | 869,250.00 | 818,250.00 | 0.9434 | 771,933.96 | 5,700,000.00 |
| 2 | 52,020.00 | 882,201.83 | 830,181.83 | 0.8900 | 738,858.87 | 5,671,500.00 |
| 3 | 53,060.40 | 895,346.63 | 842,286.23 | 0.8396 | 707,199.76 | 5,643,142.50 |
| 4 | 54,121.61 | 908,687.30 | 854,565.69 | 0.7921 | 676,896.07 | 5,614,926.79 |
| 5 | 55,204.04 | 922,226.74 | 867,022.70 | 0.7473 | 647,889.80 | 5,586,852.15 |
| 6 | 56,308.12 | 935,967.92 | 879,659.80 | 0.7050 | 620,125.44 | 5,558,917.89 |
| 7 | 57,434.28 | 949,913.84 | 892,479.55 | 0.6651 | 593,549.88 | 5,531,123.30 |
| 8 | 58,582.97 | 964,067.55 | 905,484.59 | 0.6274 | 568,112.23 | 5,503,467.69 |
| 9 | 59,754.63 | 978,432.16 | 918,677.53 | 0.5919 | 543,763.82 | 5,475,950.35 |
| 10 | 60,949.72 | 993,010.80 | 932,061.08 | 0.5584 | 520,458.04 | 5,448,570.60 |
| 11 | 62,168.72 | 1,007,806.66 | 945,637.95 | 0.5268 | 498,150.27 | 5,421,327.74 |
| 12 | 471,412.09 | 1,022,822.98 | 551,410.89 | 0.4970 | 274,034.32 | 5,394,221.10 |
| 13 | 64,680.33 | 1,038,063.04 | 973,382.71 | 0.4688 | 456,359.80 | 5,367,250.00 |
| 14 | 65,973.94 | 1,053,530.18 | 987,556.24 | 0.4423 | 436,797.08 | 5,340,413.75 |
| 15 | 67,293.42 | 1,069,227.78 | 1,001,934.36 | 0.4173 | 418,072.20 | 5,313,711.68 |
| 16 | 68,639.29 | 1,085,159.28 | 1,016,519.99 | 0.3936 | 400,149.32 | 5,287,143.12 |
| 17 | 70,012.07 | 1,101,328.15 | 1,031,316.08 | 0.3714 | 382,994.10 | 5,260,707.41 |
| 18 | 71,412.31 | 1,117,737.94 | 1,046,325.63 | 0.3503 | 366,573.69 | 5,234,403.87 |
| 19 | 72,840.56 | 1,134,392.23 | 1,061,551.67 | 0.3305 | 350,856.64 | 5,208,231.85 |
| 20 | 74,297.37 | 1,151,294.68 | 1,076,997.31 | 0.3118 | 335,812.85 | 5,182,190.69 |
| 21 | 75,783.32 | 1,168,448.97 | 1,092,665.65 | 0.2942 | 321,413.50 | 5,156,279.74 |
| 22 | 77,298.98 | 1,185,858.86 | 1,108,559.87 | 0.2775 | 307,631.02 | 5,130,498.34 |
| 23 | 78,844.96 | 1,203,528.16 | 1,124,683.19 | 0.2618 | 294,438.98 | 5,104,845.85 |
| 24 | 80,421.86 | 1,221,460.72 | 1,141,038.86 | 0.2470 | 281,812.12 | 5,079,321.62 |
| 25 | 82,030.30 | 1,239,660.49 | 1,157,630.19 | 0.2330 | 269,726.25 | 5,053,925.01 |
Reconciliation check: cumulative undiscounted net column at year 25 = −5,100,000 + Σ(t=1..25) Nett; NPV = Σ(t=0..25) Discounted-nett = 6,683,610.00 EUR (headline). Simple payback = 6.01 years (undiscounted cumulative net crosses zero between years 6 and 7); discounted payback = 7.60 years (discounted cumulative net crosses zero between years 7 and 8).
| Scenario | Capex EUR/kWp | Yield kWh/kWp/yr | r % | LCOE ct/kWh | Self-consumed savings, undiscounted year-1 (EUR/yr) |
|---|---|---|---|---|---|
| S1 — southern, low capex, soft WACC | 700 | 1,200 | 4 | 4.71 | 871,200 |
| S2 — southern, base | 850 | 1,200 | 6 | 6.72 | 871,200 |
| S3 — northern, base | 850 | 950 | 6 | 8.48 | 689,700 |
| S4 — northern, base, high WACC | 850 | 950 | 8 | 9.98 | 689,700 |
| S5 — constrained retrofit | 1,150 | 950 | 6 | 11.48 | 689,700 |
Self-consumed savings row states undiscounted year-1 savings (55% × annual generation × 0.22 EUR/kWh), reported on an undiscounted basis for an apples-to-apples view against the LCOE band. The computed NPV in §4 uses the discounted cash flow above.
| Yield (kWh/kWp/yr) ↓ \ r % → | 4 | 6 | 8 |
|---|---|---|---|
| 900 | 8.21 | 9.07 | 10.66 |
| 950 | 7.78 | 8.48 | 9.98 |
| 1,000 | 7.39 | 8.06 | 9.48 |
| 1,100 | 6.72 | 7.33 | 8.62 |
| 1,200 | 5.68 | 6.72 | 7.90 |
S1 (southern, low capex, soft WACC) — GO. LCOE ≈ 4.71 ct/kWh, a wide spread below industrial retail 22 ct/kWh. Strong siting-grade; bid lock-in the EPC price.
S2 (southern, base) — GO. LCOE ≈ 6.72 ct/kWh; commercial-grade recommendation.
S3 (northern, base) — CONDITIONAL. LCOE ≈ 8.48 ct/kWh below industrial band but tight; proceed only with a bankable EPC and PVGIS-validated yield ≥ 950 kWh/kWp/yr.
S4 (northern, high WACC) — CONDITIONAL. At r = 8%, LCOE ≈ 9.98 ct/kWh still leaves a positive spread against 22 ct/kWh retail; desk-check non-grid revenue (capacity payment, flexibility) before FID.
S5 (constrained retrofit) — NO-GO. LCOE ≈ 11.48 ct/kWh barely clears grid parity on self-consumption; without subsidy or PPA, do not build as a stand-alone solar asset.
Manufacturer declarations of conformity and notified-body certificates are collected at RFQ stage; Tradvolt does not represent any specific certificate number as fact. The equipment envelope in §3 is illustrative; §8 must be re-issued against the actual model + manual revision selected for this site before FID.
| Component | HS subheading | EU CN code indicative | Duty rate (EU MFN indicative) | Status |
|---|---|---|---|---|
| Crystalline silicon PV modules | 8541.43 | 85414300 | 0 % (per EU CN 2024) | PENDING |
| Power inverters (PV) | 8504.40 | 85044090 sub-line | 2.7 % (EU MFN indicative 2024) | PENDING |
| Mounting structures, aluminium/steel | 7610 / 7308 | 76109090 / 73089099 | 3 % indicative | PENDING |
| DC cables, PV-rated | 8544.60 | 85446090 | 3.7 % indicative | PENDING |
Disclaimer: values above are indicative CN-line baselines from the public EU TARIC dataset. Final payable duty is determined by the customs authority of clearance at import. Anti-dumping / countervailing measures can override MFN and must be checked by a licensed customs broker before each shipment.
Editorial notice: this document is a transparent engineering-economics model, not investment advice. Numbers above are reproduced verbatim from the scenario model tables in §4. Re-validate at every site RFQ.