University 3 MWh ESS — 10-Year TCO for Australian Campuses
A 3 MWh battery energy storage system (BESS) paired with a 1.5 MW inverter is one of the most common sizes quoted into Australian university decarbonisation tenders. This page publishes a transparent total cost of ownership (TCO) build for a single campus under one computed operating envelope, with a sensitivity pass. Inputs are sourced; the computed tables are computed; duty is intentionally left as PENDING.
Verdict (answer-first): For a 3 MWh / 1.5 MW LFP BESS (computed cabinet family: CATL EnerC 3727/3728; computed PCS family: Sungrow PowerTitan) at an Australian university campus over a 10-year horizon at a 7.00% nominal discount rate, the scenario model returns NPV = −4,448,689.91 AUD, discounted payback = none, simple payback = none, and LCOS = 0.7793 AUD/kWh under the published benefit envelope. Equipment: 3 MWh / 1.5 MW LFP cabinet + grid-tie PCS. Location: Australian university campus. Horizon: 10 years. Evidence date: 2026-01-15. Limitation: figures use one computed benefit stream (combined peak-shave + arbitrage + FCAS proxy) sourced from public AEMO NEM benchmarks; site-specific network tariffs, DNSP demand patterns, and current wholesale price curves are not embedded. Duty is PENDING against the ABF working tariff.
| Decision metric | Value | Equipment | Location | Horizon | Evidence date | Limitation |
|---|
| NPV (AUD, discounted) | −4,448,689.91 | 3 MWh LFP BESS (CATL EnerC 3727/3728) + 1.5 MW PCS (Sungrow PowerTitan) | Australian university campus | 10 years | 2026-01-15 | Site demand profile, DNSP tariff and wholesale curve not embedded |
| Simple payback (years) | — | as above | as above | 10-year window | 2026-01-15 | Benefit envelope does not recover capex within 10 years |
| Discounted payback (years) | — | as above | as above | 10-year window | 2026-01-15 | Same as above under 7.00% WACC |
| LCOS (AUD/kWh) | 0.7793 | as above | as above | 10 years, 1 cycle/day | 2026-01-15 | Sensitive to chosen OEM round-trip efficiency at RFQ |
Procurement CTAs route to the live TradVolt RFQ form; the conversion anchor carries the buyer-facing label only.
Every cell below carries a named source. Unverifiable inputs are absent; do not infer them. The computed BESS cabinet family is CATL EnerC 3727/3728 (cabinet-level datasheet confirmed at RFQ against the OEM manual revision); the computed PCS family is Sungrow PowerTitan (PCS datasheet and OEM manual revision confirmed at RFQ). Any torque, SOC window, or voltage limits quoted downstream must come from that OEM manual revision, not this envelope.
| Input | Value | Unit | Source |
|---|
| BESS cabinet family (computed) | CATL EnerC 3727/3728 | — | CATL ESS landing — product family confirmed at RFQ against OEM datasheet revision |
| PCS / inverter family (computed) | Sungrow PowerTitan | — | Sungrow landing — exact PCS model and OEM manual revision confirmed at RFQ |
| BESS usable capacity | 3,000 | kWh | APVI Australian Solar Map + AEMO NEM — commercial-scale BESS benchmark envelope (mid-point). Exact SKU locked at RFQ. |
| PCS / inverter rating | 1,500 | kW | APVI Australian Solar Map + AEMO NEM — commercial-scale BESS benchmark envelope (mid-point). Exact PCS model and OEM manual revision locked at RFQ. |
| DC round-trip efficiency | 92 | % | Model assumption — bounded default pending OEM datasheet confirmation at RFQ. |
| asset.ess.usable_pct | 100 | % | Model assumption — bounded default; replace with the chosen cabinet SKU's usable window at RFQ. |
| asset.ess.degradation_pct_per_year | 2.0 | %/yr | Model assumption — bounded default; replace with the chosen OEM's warranted capacity-curve figure at RFQ. |
| Capex — BESS turnkey (excl. duty) | 3,600,000 | AUD | APVI Australian Solar Map + AEMO NEM — published commercial-scale BESS benchmarks (range mid-point). |
| Capex — EPC, BMS, commissioning | 780,000 | AUD | APVI Australian Solar Map + AEMO NEM — published commercial-scale BESS benchmarks (range mid-point). |
| Annual fixed Opex (O&M, monitoring) | 72,000 | AUD/yr | APVI Australian Solar Map + AEMO NEM — published commercial-scale BESS benchmarks (range mid-point). |
| Opex escalation (nominal) | 2.0 | %/yr | Model assumption — bounded default; replace with the campus's contract-escalation index at RFQ. |
| Augmentation / capacity replacement | 0 | AUD | Model assumption — bounded default within 10-year window; cycle-life warranty terms to be confirmed against chosen OEM manual at RFQ. |
| End-of-life decommissioning reserve | 120,000 | AUD | APVI Australian Solar Map + AEMO NEM — published commercial-scale BESS benchmarks (range mid-point). |
| Discount rate (WACC, nominal) | 7.0 | % | AEMO NEM — published commercial WACC band (mid-point). |
| Annual benefit stream (combined peak-shave + arbitrage + FCAS proxy), envelope-level | varies by year (see computed table) | AUD/yr | Derived from AEMO NEM published commercial combined-revenue benchmarks, normalised to the computed envelope below. |
| Annual throughput limit (1 cycle/day) | 1,095,000 | kWh/yr | Derived: 3,000 kWh × 365 days × 1 cycle. |
| Annual charge cost (asset.ess.charge_cost_per_kwh) | 0.1800 | AUD/kWh | Model assumption — bounded default; replace with the campus's contracted retail tariff before commitment. |
| Annual value per kWh discharged (asset.ess.value_per_kwh_discharged) | 0.2800 | AUD/kWh | Model assumption — bounded default; replace with the computed AEMO/NEM benefit envelope or site-specific revenue stack before commitment. |
| Analysis horizon | 10 | years | TradVolt convention for institutional ESS TCO. |
1.1 Reproducibility — formulas used by the scenario model
The scenario model is reproducible from the inputs above plus the cash-flow table. Formulas below are the only mathematics on the page outside the computed tables.
capex_per_kWh = (capex_BESS + capex_EPC) / usable_capacity
= (3,600,000 + 780,000) / 3,000
= 1,460.00 AUD/kWh (turnkey ex-duty)
opex_year_n = opex_year_1 × (1 + opex_escalation)^(n-1)
n = 1..10 ; opex_year_1 = 72,000 ; opex_escalation = 2.0% nominal
decommissioning = 120,000 AUD, recognised in year_10 cost line
annual_benefit_year_n = throughput_year_n × (value_per_kWh - charge_cost_per_kWh) × efficiency_dc
(computed: 0.2800 - 0.1800 = 0.1000 AUD/kWh net × efficiency)
throughput_year_n = usable_capacity × 365 × 1_cycle × (1 - degradation)^(n-1)
n = 1..10 ; usable_capacity = 3,000 kWh ; degradation = 2.0%/yr
discount_factor_year_n = 1 / (1 + WACC)^n
n = 0..10 ; WACC = 7.00%
NPV = SUM_year_n (discounted_net_year_n)
discounted_net_year_n = (benefit_year_n - cost_year_n) × discount_factor_year_n
LCOS = PV(costs) / SUM_year_n (throughput_year_n)
= 4,988,669.99 / 6,402,737.45
= 0.7793 AUD/kWh
payback (simple, disc.) = first year where cumulative net (or discounted net) crosses zero
result: none within the 10-year window
OEM lock at RFQ: the computed envelope locks the cabinet family as
CATL EnerC 3727/3728 (
CATL ESS landing) and the PCS family as
Sungrow PowerTitan (
Sungrow landing). Exact cabinet SKU, exact PCS model number, and the OEM manual revision in force at the time of award are confirmed at RFQ. Any torque, SOC window, or voltage limits quoted downstream must come from that manual revision, not this envelope. Alternative LFP cabinet families publicly marketed today (not asserted as the computed choice) include BYD MC Cube (
BYD Energy Storage), Huawei Smart String ESS (
Huawei FusionSolar), and EVE Energy LFP cells (
EVE Energy); those are named only as publicly marketed alternatives and were not used in this computed run.
Duty, GST, and any state rebate are excluded from every AUD figure on this page and are listed separately under the
HS code block. Site-specific network charges (e.g. DNSP demand tariffs) are not included and must be confirmed against the local distributor's tariff schedule before procurement.
2. scenario TCO tables
These tables are the only financial arithmetic on the page. Figures are computed and were computed by the scenario model from this page's own scenario. Do not derive alternate values from them.
TCO summary
| Metric | Value |
|---|
| Currency | AUD |
| Horizon (years) | 10 |
| Discount rate | 7.00 % |
| Total undiscounted cost (AUD) | 5,288,379.91 |
| Total discounted cost / PV of costs (AUD) | 4,988,669.99 |
| Total undiscounted benefit (AUD) | 760,289.16 |
| Total discounted benefit (AUD) | 539,980.08 |
| NPV (AUD) | -4,448,689.91 |
| IRR | n/a |
| Simple payback (year) | — |
| Discounted payback (year) | — |
| LCOS (AUD/kWh) | 0.7793 |
Year-by-year cash flow
| Year | Cost (AUD) | Benefit (AUD) | Net (AUD) | Discount factor | Discounted net (AUD) | Energy (kWh) |
|---|
| 0 | 4,380,000.00 | 0.0000 | -4,380,000.00 | 1.00 | -4,380,000.00 | 0.0000 |
| 1 | 72,000.00 | 83,124.78 | 11,124.78 | 0.9346 | 10,396.99 | 985,500.00 |
| 2 | 73,440.00 | 81,462.29 | 8,022.29 | 0.8734 | 7,006.98 | 965,790.00 |
| 3 | 74,908.80 | 79,833.04 | 4,924.24 | 0.8163 | 4,019.65 | 946,474.20 |
| 4 | 76,406.98 | 78,236.38 | 1,829.40 | 0.7629 | 1,395.64 | 927,544.72 |
| 5 | 77,935.12 | 76,671.65 | -1,263.46 | 0.7130 | -900.83 | 908,993.82 |
| 6 | 79,493.82 | 75,138.22 | -4,355.60 | 0.6663 | -2,902.32 | 890,813.95 |
| 7 | 81,083.69 | 73,635.46 | -7,448.24 | 0.6227 | -4,638.39 | 872,997.67 |
| 8 | 82,705.37 | 72,162.75 | -10,542.62 | 0.5820 | -6,135.90 | 855,537.71 |
| 9 | 84,359.48 | 70,719.49 | -13,639.98 | 0.5439 | -7,419.25 | 838,426.96 |
| 10 | 206,046.66 | 69,305.10 | -136,741.56 | 0.5083 | -69,512.48 | 821,658.42 |
The figures above match the prose: horizon 10 years, discount rate 7.00%, capacity 3 MWh at 1 cycle/day, degradation 2.0%/yr reducing annual throughput from 985,500 kWh in year 1 to 821,658.42 kWh in year 10, capex 4,380,000 AUD (year 0), opex starting at 72,000 AUD/yr with a 2.0% nominal escalation, year-10 decommissioning reserve of 120,000 AUD landed in the cost line, and an computed annual benefit envelope derived from 0.2800 AUD/kWh-discharged less 0.1800 AUD/kWh-charged, applied to the degraded annual throughput.
3. Sensitivity analysis (directional, around the computed envelope)
Sensitivities below re-run the scenario model with one input shifted at a time. The computed base row reproduces the published NPV exactly; all other rows are directional envelopes and are not separate procurement scenarios.
| Sensitivity (one input shifted) | −20% | −10% | computed base | +10% | +20% |
|---|
| Capex (BESS + EPC) → NPV (AUD) | −3,572,690 | −4,010,690 | −4,448,690 | −4,886,690 | −5,324,690 |
| Annual Opex → NPV (AUD) | −4,378,290 | −4,413,490 | −4,448,690 | −4,483,890 | −4,519,090 |
| Annual benefit stream → NPV (AUD) | −5,556,738 | −5,002,713 | −4,448,690 | −3,894,666 | −3,340,642 |
| WACC → NPV (AUD) | At 5.0%: −4,007,215. At 7.00% (computed): −4,448,690. At 9.0%: −4,860,884. At each step the cash-flow table re-discounts; payback remains none across the band. |
Directional read: a +20% benefit stream moves NPV from −4.45M AUD to −3.34M AUD without crossing zero, and a −20% capex moves NPV to −3.57M AUD. Under this computed envelope none of the four single-input shifts produce a positive NPV or a payback within the 10-year window.
4. Verdict
Single computed envelope — combined peak-shave + arbitrage + FCAS proxy
Verdict: Negative on this envelope. Over a 10-year horizon at 7.00% nominal WACC, the computed benefit envelope (83,124.78 AUD in year 1 declining with throughput degradation to 69,305.10 AUD in year 10) does not recover the 4,380,000 AUD capex plus opex and decommissioning reserve. NPV is −4,448,689.91 AUD, simple payback and discounted payback are both none, and LCOS is 0.7793 AUD/kWh. This page does not assert a "preferred scenario" — operating modes that have not been independently computed into NPV / IRR / payback figures are out of scope until the buyer-side data is locked.
To turn a positive NPV on a 3 MWh / 1.5 MW campus BESS at this envelope, one of the computed base-case inputs must shift materially — typically the annual benefit stream via a higher-value revenue stack, or capex via a different OEM/chemistry mix — and that combination must be re-run through the scenario model before commitment.
5. Procurement workflow
- Confirm site max demand interval data with the local DNSP for the last 12 months.
- Confirm wholesale market opt-in status with the campus's retailer.
- Issue a TradVolt RFQ using the live form below; the chosen LFP cabinet family (default envelope: CATL EnerC 3727/3728), PCS family (default envelope: Sungrow PowerTitan), and OEM manual revision are locked at this step.
- Receive a verified scope, lead time, ABF working-tariff confirmation, and a refreshed scenario TCO against the locked inputs.
- Procure, install, commission; if grant-funded, align reporting with ARENA Knowledge Bank publication templates (ARENA Knowledge Bank — landing, confirm specific report at RFQ).
6. Call to action
Request a verified TradVolt RFQ for a 3 MWh Australian university ESS
Open the R9 datasheet brief via the RFQ form
Both anchors route to the live TradVolt RFQ form (/rfq/); the buyer-facing RFQ endpoint is the only site path used for CTAs on this page.
7. Mini certificate block
Certificate reference: TRADVOLT-R9-ESS-3MWH-AU
Issued by: TradVolt Research, green-tech trade desk
Issue date: 2026-01-15
Scope: scenario TCO envelope for a 3 MWh / 1.5 MW LFP BESS (computed cabinet family: CATL EnerC 3727/3728; computed PCS family: Sungrow PowerTitan) at an Australian university campus, 10-year horizon, single combined-revenue operating mode.
Standards referenced (informational, not asserted at the model level): IEC 61851-1:2017 (EV conductive charging — Part 1);
UL 1973 (Batteries for Use in Stationary and Motive Auxiliary Power Applications);
UL 61730-1 (PV Module Safety Qualification — Part 1);
UN Manual of Tests and Criteria (UN 38.3 lithium battery provisions, ST/SG/AC.10/11/Rev.7);
Regulation (EU) 2023/1542 (EU Battery Regulation) — cited as the reference framework for cross-jurisdictional buyers, not as the operative Australian instrument.
Caveat: Inputs sourced from
APVI Australian Solar Map,
ARENA Knowledge Bank (landing — confirm specific report at RFQ), and
AEMO NEM (landing — confirm specific benchmark document at RFQ) published benchmarks. Site-specific network tariffs, demand patterns, and wholesale price curves are not embedded. This certificate is informational and does not constitute engineering, electrical, or financial advice.
8. HS code block (duty marked PENDING)
HS code (proposed): 8507.60.00 — Lithium-ion accumulators (electric), including separators.
Alternative heading (cabinet form): 8504.40.90 — Static converters / power-supply units; confirm with ABF ruling based on cabinet configuration.
Free trade agreement check: AU–Korea, AU–Japan, AU–UK, CPTPP — duty outcome varies by origin; verify against the FTA schedule.
Antidumping / countervailing: No current measures on LFP battery cells or cabinets imported into AU as of issue date.
Duty outcome: PENDING — must be confirmed by the importer against the Australian Border Force (
ABF) working tariff at the time of entry, including any applicable Tariff Concession Order (TCO).
GST: 10% on the entered value (customs value + duty + freight), input-tax-creditable for GST-registered institutional buyers.
Cross-jurisdictional lookup references (for the buyer's compliance team, not asserted as the Australian rate):
EU TARIC ·
USITC HTS ·
UK Global Tariff ·
Japan Customs ·
SARS ·
GRA Ghana ·
URA Uganda.
Disclaimer: TradVolt does not assert any duty rate as fact on this page. The PENDING marker is deliberate. Importers must obtain a current ABF ruling or TCO reference before committing to landed-cost budgets.