Electrifying Australia’s Diesel Fleet

From diesel replacement priorities to the Sydney–Melbourne corridor

David Leitch

2026-03-24

Part 1: Prioritising Diesel Replacement

The prize

  • Full electrification redirects ~$22 bn/yr from petroleum imports to domestic electricity (~1% of GDP)
  • 90 Mt CO2 reduction (~15% of national emissions)
  • At AER shadow price of $176/t CO2 → ~$15 bn in welfare gains
  • NPV at 5% bond rate: ~$750 bn

Three priority sectors

Policy scorecard

Road diesel breakdown

Diesel segment profiles

Commodity freight

Diesel replacement economics

Electricity demand for full replacement

Key policy lever: Fuel Tax Credits

  • FTCS cost $7.8 bn in FY 2022–23 (larger than Commonwealth hospital spend)
  • Mining claims 45% ($3.5 bn) — coal miners alone ~$1.7 bn/yr
  • Reduces the fuel cost advantage of electrification by ~30%
  • Reform options: phase-down for mining, electrification offset, carbon-linked reduction

Part 2: Sydney to Melbourne

The case: a no brainer

  • 22 Mt/yr of freight travels the 900 km corridor (~1.2 bn freight-km)
  • Full electrification saves ~$0.9 bn/yr in fuel costs
  • Total capex to electrify: ~$4 bn → payback under 5 years
  • Incremental capex (charging + vehicle premium): ~$2.5 bn → payback under 3 years

Electric freight cost comparison

The B-Double

  • 60 tonne B-double with 700 kWh battery
  • One charging stop Sydney–Melbourne, charge takes ~1 hour
  • Every electric km costs 1/3 the diesel cost

Running cost comparison

Electric (1.9 kWh/km) Diesel (50 L/100km)
Energy rate $0.15/kWh $2.00/L
Energy cost/km $0.285 $1.00
Service cost/km $0.014 $0.031
Running cost/km $0.30 $1.03

Every km: $0.70 cheaper than diesel

China is already doing it

The tech exists now

  • CATL: 1.5 million km battery warranty
  • Windrose E1400: 670 km range, 68t B-double, MW charging capable
  • Megawatt Charging Standard (MCS): charge 700 kWh in ~1 hour
  • Huawei 100 MW hub: 126 bays, US$21M, 700 trucks/day

Other benefits

  • Carbon: ~1.7 Mt CO2/yr avoided on this corridor alone
  • Driver welfare: less noise, no diesel fumes, better cab design
  • Time savings: 30–60 min faster each way (electric power uphill)
  • Road safety: all vehicles at speed limit on hills
  • Energy security: reduced oil import dependence

What’s needed

  1. Charging infrastructure on the Hume Highway — 6–12 purpose-built stations
  2. Grid connections at logistics hubs (Moorebank, Somerton)
  3. Standards alignment — MCS connectors and 1,250V DC systems
  4. Policy nudge — the economics are compelling, but capital needs to be mobilised

Windrose E1400 vs Tesla Semi

Windrose E1400 Tesla Semi (LR)
Power 1,400 hp / 4 motors 1,073 hp / 3 motors
Battery 729 kWh LFP (860 opt.) ~850–900 kWh (est.)
Range (loaded) 670 km at 49t 805 km at 37t
Max GCW 68t B-double 37t (US Class 8)
Drag coeff. (CdA) ~2.7 m² ~3.1 m²
Charging MCS + dual CCS2 (open) Proprietary megacharger
Price Not disclosed US$290,000

Tesla production: Target 50,000/yr from Nevada factory — but every prior deadline missed by years (promised 2019, first units Dec 2022; promised 50k in 2024, delivered ~200)

Australian relevance: Tesla Semi is rated at 37t — below even a standard AU semi (42.5t), let alone a 68t B-double. No AU plans announced. Windrose has completed a 480 km delivery at 36t via NET, but full 68t B-double payload + range not yet publicly validated.

The economics are outstanding.

The need is obvious.

An absolute no brainer.

Thank you

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