Import LFP-Wall-15kWh to Switzerland — Townhouse Backup 15 kWh Total Cost of Ownership

Verdict (with the stated input set): NPV = -7,386.81 CHF; simple payback = none within 25-year horizon; discounted payback = none within 25-year horizon; LCOS = 0.5091 CHF/kWh; IRR = -6.72 %/yr. Equipment: vertical LFP wall-mount ~15 kWh battery, CN→CH import. Reference OEM family: BYD Battery-Box Premium HVS / HVM (HVS 15.4 / HVM 13.8 used as the ~15 kWh proxy; HVS/HVM datasheet 2023-09). Horizon: 25 years. Discount rate: 8.00 %. Currency: CHF. Evidence date: 2026-09-21. Limitation: payback/NPV are sensitive to electricity tariff, cycle count and usable-DoD; the model uses explicit bounded defaults shown in Section 4. ILLUSTRATIVE inputs are flagged per cell; replace before any procurement decision.

1. Reference configuration — real OEM family

The reference configuration uses the BYD Battery-Box Premium HVS / HVM family as a real, publicly marketed CN-made LFP wall-mount product in the ~15 kWh class. Legal entity: BYD Company Limited, Shenzhen, CN; European arm BYD Europe B.V., Netherlands. The exact SKU quoted will be fixed at RFQ from the datasheet.

2. CapEx — landed cost into Switzerland (CN → CH)

Reference landed CapEx used in the scenario model for this scenario: 10,000.00 CHF (Year-0 outflow). All line items below are presented as bounded placeholders to be replaced by the freight forwarder, OEM quotation and the Swiss Tares portal lookup at RFQ.

3. OpEx — annual operating cost

Reference annual OpEx used in the scenario model: Year-1 OpEx = 200.00 CHF, escalated at 2.00 %/yr (model assumption). Lines below are placeholders to be replaced at RFQ.

4. TCO model — inputs, outputs and year-by-year cash flow

Model inputs (bounded defaults — replace before procurement):

Headline outputs (scenario model):

Year-by-year cash flow (scenario model):

Sensitivity — payback (years) at varying avoided-grid-cost × landed CapEx. Every cell below is a per-cell ILLUSTRATIVE placeholder derived from the simplified formula Simple payback (years) = Landed CapEx (CHF) / (Annual benefit − Annual OpEx) (CHF/yr). The scenario model above uses its own input set; the cells below are NOT the scenario model output and must be replaced with the scenario model re-run before any procurement decision.

Headline payback with the stated input set (scenario model): none within the 25-year horizon (both simple and discounted). Replace the bounded defaults (avoided-grid-cost, annual discharge, usable %, degradation, charge cost) to re-run.

5. Compliance and certifications

Tradvolt does not claim certifications on behalf of any OEM. Numbers, revision dates and issuer names must be verified against the actual certificate attached to the OEM datasheet.

6. Duty-Stack block (HS national line | Program | As-of: 2026-09-21)

Every duty and VAT rate on this page is marked PENDING — lookup. No rate is hardcoded. Use the official portal named above on the day of shipment (As-of: 2026-09-21) and re-confirm against the exact Tares national line from the Swiss tariff portal.

7. Compatibility / inverter limits (pro-page torque, SOC, voltage disclosures)

8. Request a Quote

Request Quote — replies in 48h (RFQ path)

9. Frequently Asked Questions

Q1. What HS code applies to a ~15 kWh LFP wall-mount battery imported into Switzerland?

Lithium-ion accumulators are classified under HS subheading 8507.60; the exact Swiss national tariff line must be confirmed against the official Swiss Tares tariff portal on the day of shipment. See the Duty-Stack block above for the official lookup URL.

Q2. Which compliance marks are required for a ~15 kWh LFP battery in Switzerland?

IEC 62619 (secondary lithium cells for industrial applications) and UN 38.3 (transport) are commonly cited. CE marking applies under the applicable EU/Swiss alignment. Certificate numbers, revisions and issuer names must be verified from the OEM datasheet attached to the RFQ.

Q3. How is payback estimated on this page?

All payback, NPV, IRR and LCOS figures are produced by Tradvolt's scenario TCO model with the input set disclosed in Section 4. With the stated inputs the model reports NPV = -7,386.81 CHF, IRR = -6.72 %/yr, LCOS = 0.5091 CHF/kWh and no simple or discounted payback within the 25-year horizon. Replace inputs with your own numbers to re-run.

Q4. Why are some duty/VAT lines PENDING?

Tradvolt does not hardcode duty or VAT rates. All rates must be looked up against the official Swiss Tares tariff portal on the date of shipment. The Duty-Stack block names the portal, HS subheading and access date for the lookup.

Q5. Can the battery be shipped by air freight?

Lithium-ion batteries are Class 9 dangerous goods under IATA DGR and require UN 38.3 test summary documentation. Whether a specific ~15 kWh LFP unit can be offered on a passenger or cargo aircraft depends on its Watt-hour rating and the forwarder's SOP. Confirm with your forwarder; this page leaves the answer PENDING.

Q6. Do you publish unit prices on the website?

No. Tradvolt does not publish unit prices. Submit an RFQ using the form above; we reply within 48 hours with an indicative EXW quotation, valid for the named configuration, quantity and incoterm.