Decision-first TCO for a 600 kWp agrivoltaic greenhouse retrofit. Equipment: LONGi Hi-MO 7 LR7-66HGD modules + Huawei SUN2000-100KTL-M2 string inverters on K2 Systems SingleRail mounting. Location: Athens baseline. Horizon: 25 yr. Discount rate: 8.00 % real. Evidence date: 2026-09-22. Limitation: figures derive from the scenario TCO scenario below; no project-specific certifications are claimed on this page. HS-code and EU duty lines are PENDING — see §6.
Certification disclosure. This page makes no claim of any project-specific third-party certification. Equipment families listed above are typically supplied with the following standards-track documents; specific certificate numbers, issuing bodies, and revision dates must be obtained from the EPC and confirmed against the project file before procurement:
IEC 61215-1:2021 / IEC 61215-2:2021 — Crystalline silicon PV modules — Design qualification (catalogue: https://webstore.iec.ch/) — issuing body typically TÜV Rheinland, TÜV Süd, VDE, or Bureau Veritas.
IEC 62109-1 / IEC 62109-2 — Safety of power converters for use in photovoltaic power systems (catalogue: https://webstore.iec.ch/).
The "TradVolt Mini-Certificate" used in earlier drafts was a self-disclosure statement and is removed from this revision.
2. TCO Summary (COMPUTED — verbatim)
TCO summary
Metric
Value
Currency
EUR
Horizon (years)
25
Discount rate
8.00 %
Total undiscounted cost (EUR)
698,618.16
Total discounted cost / PV of costs (EUR)
559,253.06
Total undiscounted benefit (EUR)
4,410,210.93
Total discounted benefit (EUR)
1,772,506.82
NPV (EUR)
1,213,253.76
IRR
0.3097
Simple payback (year)
3.33
Discounted payback (year)
4.01
LCOE (EUR/kWh)
0.0594
Convention: a positive NPV means the avoided-electricity benefit stream exceeds the cost stream in present-value terms (i.e. savings vs. an explicit grid-only baseline of identical consumption). Discounted payback is the first year in which cumulative discounted net cash flow turns non-negative. LCOE = PV of costs / lifetime discounted kWh delivered.
3. Year-by-Year Cash Flow (COMPUTED — verbatim)
Year-by-year cash flow
Year
Cost (EUR)
Benefit (EUR)
Net (EUR)
Discount factor
Discounted net (EUR)
Energy (kWh)
0
468,000.00
0.0000
-468,000.00
1.00
-468,000.00
0.0000
1
7,200.00
145,008.00
137,808.00
0.9259
127,600.00
912,000.00
2
7,344.00
147,316.53
139,972.53
0.8573
120,003.88
908,352.00
3
7,490.88
149,661.81
142,170.93
0.7938
112,859.87
904,718.59
4
7,640.70
152,044.42
144,403.72
0.7350
106,141.05
901,099.72
5
7,793.51
154,464.97
146,671.46
0.6806
99,822.13
897,495.32
6
7,949.38
156,924.05
148,974.67
0.6302
93,879.31
893,905.34
7
8,108.37
159,422.28
151,313.91
0.5835
88,290.22
890,329.72
8
8,270.54
161,960.29
153,689.75
0.5403
83,033.79
886,768.40
9
8,435.95
164,538.69
156,102.75
0.5002
78,090.24
883,221.32
10
8,604.67
167,158.15
158,553.48
0.4632
73,440.94
879,688.44
11
8,776.76
169,819.31
161,042.55
0.4289
69,068.39
876,169.68
12
8,952.30
172,522.83
163,570.54
0.3971
64,956.11
872,665.01
13
9,131.34
175,269.39
166,138.05
0.3677
61,088.62
869,174.35
14
9,313.97
178,059.68
168,745.71
0.3405
57,451.34
865,697.65
15
9,500.25
180,894.39
171,394.15
0.3152
54,030.58
862,234.86
16
9,690.25
183,774.23
174,083.98
0.2919
50,813.45
858,785.92
17
9,884.06
186,699.92
176,815.86
0.2703
47,787.84
855,350.77
18
10,081.74
189,672.18
179,590.44
0.2502
44,942.33
851,929.37
19
10,283.37
192,691.76
182,408.39
0.2317
42,266.22
848,521.65
20
10,489.04
195,759.41
185,270.37
0.2145
39,749.43
845,127.57
21
10,698.82
198,875.90
188,177.08
0.1987
37,382.46
841,747.06
22
10,912.80
202,042.01
191,129.21
0.1839
35,156.40
838,380.07
23
11,131.05
205,258.52
194,127.46
0.1703
33,062.87
835,026.55
24
11,353.67
208,526.23
197,172.56
0.1577
31,093.98
831,686.44
25
11,580.75
211,845.97
200,265.22
0.1460
29,242.31
828,359.70
The benefit column represents avoided electricity purchases against an explicit grid-only baseline of identical annual consumption at the Athens industrial band tariff schedule (see §5 assumption set). The cost column is O&M only; CAPEX is shown at year 0.
This revision publishes the Athens scenario only. Multi-climate reruns require a fresh model run; do not interpolate.
Yield −10 % (model assumption)
Sensitivity band
Reduces lifetime kWh by ~10 % and reduces NPV25 by approximately the same proportional factor, holding all other inputs constant. Buyer should request a sensitivity rerun before procurement.
Tariff −15 % (model assumption)
Sensitivity band
Compresses benefit column by ~15 %; NPV25 stays positive under this single-shock test based on the model structure.
Bounded default: asset.pv.tariff_escalation_pct applied within the computed run; no figure restated here.
Residual value at year 25
Not credited
Bounded default: residual_value.amount = 0 EUR; residual_value.year = horizon end. Net terminal cash flow in §3 reflects this default.
Self-consumption / export split
Embedded in benefit blend
Bounded default inside the scenario
Assumption discipline. Bounded defaults the input supply for are documented above as model assumptions, not as sourced facts. Substituting any default requires a fresh model run; do not scale numbers in §2 or §3 by hand.
6. HS / Customs Reference Block — PENDING
PENDING — EU TARIC lookup required. Reference HS classifications for the component families named; final classification, EU duty rate, and any VAT treatment rest with the importer of record and must be confirmed against:
HS 7610.90 — Aluminium structures and parts (aluminium mounting rails)
HS 7326.90 — Other articles of iron or steel (steel brackets)
PENDING. Any duty rate, anti-dumping measure, or VAT treatment shown elsewhere in earlier drafts is removed in this revision.
7. RFQ Anchor
Request a binding quotation for a 600 kWp LONGi Hi-MO 7 + Huawei SUN2000-100KTL-M2 greenhouse retrofit matched to your climate band. TradVolt routes the brief to EPCs and returns sealed bids.