Verdict (computed by scenario model, 25-yr horizon, 8.00 % discount rate, USD): For a Sungrow SH12.0RT hybrid inverter paired with an EVE LF280K-based 15 kWh LFP battery, sized for a single-family villa in Ukraine, the model returns NPV = −2,971.22 USD, IRR = 4.06 %, simple payback = 16.53 years, discounted payback = not achieved within 25 years, and an LCOE of 0.1050 USD/kWh. At the modelled residential self-consumption tariff (~0.0725 USD/kWh avoided import) the project is marginal; economics become favourable only when (a) diesel-displacement is monetised in outage-prone oblasts, (b) net-billing / feed-in tariff is captured at the Ukraine NEC published rate at the moment of clearance, or (c) avoided grid-connection upgrade is factored. Limitation: figures depend on the OEM pro-forma invoice, freight forwarder rate, and Ukraine customs duty/VAT line — verify against the OEM datasheets and the Ukraine State Customs Service tariff portal before any commercial commitment.
| Item | Value | Source / evidence |
|---|---|---|
| Equipment | Sungrow SH12.0RT (Sungrow Power Supply Co., Ltd.) + EVE LF280K (EVE Energy Co., Ltd.) 15 kWh LFP cabinet | Sungrow SH12.0RT product page · EVE LF280K product page |
| Location | Ukraine (villa, 3–4 BR, ~180–250 m²) | Use-case |
| Horizon | 25 years | Model parameter |
| Discount rate | 8.00 % | Model parameter |
| NPV (USD) | −2,971.22 | Scenario model (computed) |
| IRR | 4.06 % | Scenario model (computed) |
| Simple payback (yrs) | 16.53 | Scenario model (computed) |
| Discounted payback (yrs) | not achieved | Scenario model (computed) |
| LCOE (USD/kWh) | 0.1050 | Scenario model (computed) |
| Evidence date | 2026-09-21 | This page |
| Limitation | Marginal at residential self-consumption tariff; favourable with FiT, diesel-displacement or avoided grid-upgrade | Model output + judgement |
| Use-case ID | villa-hybrid-12kw-sungrow-eve |
|---|---|
| Site | Single-family villa, Ukraine (climate-mixed; grid-unstable regions considered) |
| PV array | ~12 kWp monocrystalline, half-cut modules (configuration per OEM datasheet) |
| Hybrid inverter | Sungrow SH12.0RT (Sungrow Power Supply Co., Ltd.) — 12 kW three-phase hybrid, 2 MPPT |
| Battery | EVE LF280K (EVE Energy Co., Ltd.) prismatic LFP cells in 15 kWh cabinet/rack, ≥80% DoD, ≥6,000 cycle rating |
| BoS | DC/AC isolators, surge protection, smart meter, energy-management gateway |
| Operating profile | Self-consumption + backup (essential-loads panel) |
| Line item | Description / OEM model | Unit | Qty | Unit price (USD) [ILLUSTRATIVE mid-points] | Subtotal (USD) |
|---|---|---|---|---|---|
| Inverter | Sungrow SH12.0RT, 12 kW hybrid, IP65, 2 MPPT | pcs | 1 | 1,200 – 1,800 | 1,500 (mid) |
| LFP battery | 15 kWh cabinet built on EVE LF280K cells, BMS integrated | set | 1 | 2,500 – 4,500 | 3,500 (mid) |
| PV modules | ~12 kWp monocrystalline, half-cut | pcs | ~24 (≈500 Wp) | 60 – 95 | 1,860 (mid) |
| BoS electrical | DC/AC isolators, SPDs, cabling, smart meter, gateway | lot | 1 | 600 – 1,000 | 800 (mid) |
| Mounting | Roof-mount or ground-mount structure | lot | 1 | 400 – 800 | 600 (mid) |
| Ocean freight | CN → UA (typically via Black Sea ports, then road) | shipment | 1 | 350 – 900 | 625 (mid) |
| Insurance | ~0.3–0.5% of CIF | — | — | ~40 – 60 | 50 (mid) |
| Year-0 CapEx fed into scenario model | 8,935.00 | ||||
Ranges reflect typical 2025/2026 CN-origin OEM pricing for the 10–20 kWh segment; the year-0 CapEx value 8,935.00 USD in the computed tables is the mid-point sum used by the scenario model. Final figures must come from the OEM pro-forma invoice and freight forwarder rate. See sources table.
| Line | Driver | Annual (USD) [ILLUSTRATIVE] | Mid annual (USD) |
|---|---|---|---|
| Inverter replacement reserve | Sungrow SH12.0RT warranty 10 yrs; allocate prorated reserve; year-8 inverter swap reflected in cost spike | 80 – 150 | 115 |
| Battery augmentation | EVE LF280K cycle ageing; capacity top-up or end-of-life swap | 120 – 250 | 185 |
| Preventive maintenance | Annual inspection, FW updates, cleaning | 80 – 120 | 100 |
| Monitoring / connectivity | Sungrow iSolarCloud or local EMS data plan | 30 – 60 | 45 |
| Insurance (operational) | Property/equipment all-risk | 40 – 80 | 60 |
| OpEx annual (mid) | — | 505 | |
OpEx escalates at 2.0 % per year in the scenario model (model assumption). The year-8 cost spike of 2,080.09 USD in the cash-flow table reflects the inverter replacement reserve drawn down plus accumulated escalation; this is a model-assumed timing pattern, not an OEM-published schedule.
| Metric | Value |
|---|---|
| Currency | USD |
| Horizon (years) | 25 |
| Discount rate | 8.00 % |
| Total undiscounted cost (USD) | 26,610.30 |
| Total discounted cost / PV of costs (USD) | 16,145.79 |
| Total undiscounted benefit (USD) | 32,652.43 |
| Total discounted benefit (USD) | 13,174.57 |
| NPV (USD) | -2,971.22 |
| IRR | 0.0406 |
| Simple payback (year) | 16.53 |
| Discounted payback (year) | — |
| LCOE (USD/kWh) | 0.1050 |
| Year | Cost (USD) | Benefit (USD) | Net (USD) | Discount factor | Discounted net (USD) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 8,935.00 | 0.0000 | -8,935.00 | 1.00 | -8,935.00 | 0.0000 |
| 1 | 505.00 | 1,087.50 | 582.50 | 0.9259 | 539.35 | 15,000.00 |
| 2 | 515.10 | 1,103.70 | 588.60 | 0.8573 | 504.63 | 14,925.00 |
| 3 | 525.40 | 1,120.15 | 594.75 | 0.7938 | 472.13 | 14,850.38 |
| 4 | 535.91 | 1,136.84 | 600.93 | 0.7350 | 441.70 | 14,776.12 |
| 5 | 546.63 | 1,153.78 | 607.15 | 0.6806 | 413.22 | 14,702.24 |
| 6 | 557.56 | 1,170.97 | 613.41 | 0.6302 | 386.55 | 14,628.73 |
| 7 | 568.71 | 1,188.42 | 619.70 | 0.5835 | 361.59 | 14,555.59 |
| 8 | 2,080.09 | 1,206.12 | -873.96 | 0.5403 | -472.17 | 14,482.81 |
| 9 | 591.69 | 1,224.10 | 632.41 | 0.5002 | 316.36 | 14,410.40 |
| 10 | 603.52 | 1,242.33 | 638.81 | 0.4632 | 295.89 | 14,338.34 |
| 11 | 615.59 | 1,260.85 | 645.25 | 0.4289 | 276.74 | 14,266.65 |
| 12 | 627.90 | 1,279.63 | 651.73 | 0.3971 | 258.81 | 14,195.32 |
| 13 | 640.46 | 1,298.70 | 658.24 | 0.3677 | 242.03 | 14,124.34 |
| 14 | 653.27 | 1,318.05 | 664.78 | 0.3405 | 226.33 | 14,053.72 |
| 15 | 666.34 | 1,337.69 | 671.35 | 0.3152 | 211.64 | 13,983.45 |
| 16 | 679.66 | 1,357.62 | 677.96 | 0.2919 | 197.89 | 13,913.53 |
| 17 | 693.26 | 1,377.85 | 684.59 | 0.2703 | 185.02 | 13,843.97 |
| 18 | 707.12 | 1,398.38 | 691.26 | 0.2502 | 172.99 | 13,774.75 |
| 19 | 721.26 | 1,419.21 | 697.95 | 0.2317 | 161.72 | 13,705.87 |
| 20 | 735.69 | 1,440.36 | 704.67 | 0.2145 | 151.19 | 13,637.34 |
| 21 | 750.40 | 1,461.82 | 711.42 | 0.1987 | 141.33 | 13,569.16 |
| 22 | 765.41 | 1,483.60 | 718.19 | 0.1839 | 132.10 | 13,501.31 |
| 23 | 780.72 | 1,505.71 | 724.99 | 0.1703 | 123.48 | 13,433.80 |
| 24 | 796.33 | 1,528.14 | 731.81 | 0.1577 | 115.41 | 13,366.64 |
| 25 | 812.26 | 1,550.91 | 738.65 | 0.1460 | 107.86 | 13,299.80 |
| Parameter | Value used | Bounded by | Source class |
|---|---|---|---|
| Annual PV yield (year 1) | 15,000 kWh / yr (≈1,250 kWh/kWp on 12 kWp) | 1,100–1,350 kWh/kWp/yr (south/central Ukraine) | Model assumption (model default mid-point); yield envelope per JRC PVGIS for Ukraine |
| PV degradation | 0.50 %/yr | Bounded 0.3–0.7 %/yr | Model assumption; bounded by typical mono-PV manufacturer linear degradation warranties |
| Self-consumption share | ≈45 % | Bounded 35–55 % (villa, daytime load) | Model assumption |
| Self-consumed tariff (avoided import) | ~0.0725 USD/kWh (≈residential tariff band) | Bounded 0.06–0.10 USD/kWh | Model assumption; Ukraine NEC published household tariff at evidence date |
| Export tariff (FiT / net-billing) | 0.00 USD/kWh in base case | Set explicitly per project | Model assumption (conservative) |
| Tariff escalation | 1.5 %/yr | Bounded 0–7 %/yr | Model assumption |
| Inverter replacement | Year 8 capex spike (2,080.09 USD) | Sungrow SH12.0RT 10-yr warranty; replacement in yr 8 modelled | Model assumption aligned to OEM warranty |
| Battery cycle life | ≥6,000 cycles at 80 % DoD (EVE LF280K) | OEM datasheet | OEM datasheet |
| Residual value | 0.00 USD at year 25 | Bounded 0–1,500 USD | Model assumption (conservative) |
| Discount rate | 8.00 % | User-set | Model parameter |
| Horizon | 25 years | — | Model parameter |
| Standard / scheme | Scope | Issuer / source | Applies to | Status |
|---|---|---|---|---|
| IEC 62109-1 / -2 | Safety of power converters for PV (inverter) | IEC 62109-1 webstore · IEC 62109-2 webstore | Sungrow SH12.0RT | Confirmed on OEM datasheet/nameplate |
| IEC 62116 / IEC 61727 | Anti-islanding & utility-interface performance | IEC 62116 webstore · IEC 61727 webstore | Sungrow SH12.0RT | Confirmed on OEM datasheet |
| EN 50549-1 | Requirements for generating plants to be connected in parallel with distribution networks | Sungrow SH12.0RT product page | Sungrow SH12.0RT | Listed in SH12.0RT datasheet |
| IEC 62619 | Secondary lithium cells for industrial applications (LFP) | IEC 62619 webstore | EVE LF280K | Tested per IEC 62619 (see LF280K datasheet) |
| UN 38.3 | Transport of lithium batteries (Section 38.3, UN Manual of Tests) | UN Manual of Tests and Criteria | EVE LF280K | Test report available on request |
| CE marking (EU directives) | EMC, LVD, RoHS declarations by OEM | Sungrow Declaration of Conformity (DoC) | Sungrow SH12.0RT | DoC supplied with shipment |
| Ukraine grid code (Ukrenergo / NEC) | Connection requirements, anti-islanding, power quality | Ukrenergo / National Energy Company of Ukraine | Project-specific | Confirm per project |
Certificate numbers, testing lab and validity dates are read off the OEM datasheet / DoC supplied with the shipment. Tradvolt does not display certificate numbers or logos that have not been verified against an OEM document.
| Claim | Value used on this page | Source (URL) | Source class |
|---|---|---|---|
| Sungrow SH12.0RT is a 12 kW three-phase hybrid inverter with 2 MPPT | Equipment model selection | Sungrow SH12.0RT product page | OEM datasheet |
| Sungrow SH12.0RT is certified to IEC 62109-1/-2, IEC 62116, IEC 61727, EN 50549-1 | Compliance row | Sungrow SH12.0RT product page | OEM datasheet |
| Sungrow SH12.0RT warranty 10 years | OpEx driver / replacement year | Sungrow SH12.0RT product page | OEM datasheet |
| EVE LF280K is a 280 Ah prismatic LFP cell, ≥6,000 cycles at 80% DoD | Battery spec / cycle-life row | EVE LF280K product page | OEM datasheet |
| PV yield envelope for south/central Ukraine | 1,100–1,350 kWh/kWp/yr (used at 1,250 mid) | JRC PVGIS (EU Science Hub) for Ukraine sites — see PVGIS | Regulator / EU JRC tool |
| HS subheading 8504.40 (static converters) | Hybrid inverter classification | CN 2022 — Reg. 2022/2065 (EUR-Lex) | Regulator (EUR-Lex) |
| HS subheading 8507.60 (lithium-ion accumulators) | LFP battery classification | USITC HTS 8507.60 · CN 2022 (EUR-Lex) | Regulator (USITC HTS) / EUR-Lex |
| IEC 62109-1/-2 (inverter safety) | Compliance row | IEC 62109-1 webstore · IEC 62109-2 webstore | Standards body (IEC Webstore) |
| IEC 62116 / IEC 61727 (anti-islanding, utility interface) | Compliance row | IEC 62116 webstore · IEC 61727 webstore | Standards body (IEC Webstore) |
| IEC 62619 (secondary lithium cells, industrial) | Compliance row | IEC 62619 webstore | Standards body (IEC Webstore) |
| UN 38.3 (transport of lithium batteries) | Compliance row | UN Manual of Tests and Criteria | Regulator (UNECE) |
| Ukraine customs duty/VAT lookup | PENDING — not hardcoded | Ukraine State Customs Service | Customs authority |
| PV degradation, tariff escalation, OpEx escalation, self-consumption share, residual value, export tariff | Bounded model assumptions (see §6) | Model assumption (explicitly bounded, not from a public URL) | Model assumption |
| NPV, IRR, payback, LCOE, year-by-year cash flow | Scenario model output (see §4–5) | scenario TCO model (Tradvolt-internal, computed) | Computed (computed) |
Fields marked * are required. Replies within 48 hours, business days.
The SH12.0RT, as a static converter/inverter, generally falls under HS subheading 8504.40. The exact Ukrainian 10-digit national line and any technology-specific suffix must be confirmed on the Ukraine State Customs Service tariff portal before each shipment.
LFP lithium-ion accumulators are typically classified under HS subheading 8507.60. Cabinet/rack integration and BMS inclusion rules can shift the classification, so verify on the Ukraine State Customs Service tariff portal and against USITC HTS 8507.60 / CN 2022 (EUR-Lex).
The SH12.0RT is certified to IEC 62109-1/-2, IEC 62116, IEC 61727 and EN 50549-1, with a CE Declaration of Conformity from Sungrow Power Supply Co., Ltd. EVE LF280K cells are tested to IEC 62619 and UN 38.3. Ukraine-specific Ukrenergo grid-code compliance must be confirmed per project.
Sungrow warrants the SH12.0RT for 10 years (extendable). EVE LF280K cells are rated for ≥6,000 cycles at 80% DoD to 80% of nominal capacity, supporting a 15-year design life in a self-consumption / backup profile.
No. All CapEx, OpEx, payback and sensitivity values are labelled ILLUSTRATIVE — NOT A QUOTE. A binding quote requires an OEM pro-forma invoice, freight forwarder rate and a confirmed Ukraine customs duty/VAT line.
Yes, subject to OEM and freight forwarder confirmation, and to the customs duty/VAT rates active at the moment of clearance. DDP price will reflect those rates as resolved via the Ukraine State Customs Service portal.