A remote Western Australian irrigation operation eliminates diesel dependency with a PHNXX hybrid solar-battery system, saving $199,655 in annual fuel costs.
Location: Western Australia — Remote Irrigation Infrastructure
System Deployed: 2 × PHNXX Integrated Power Modules
System: S35B241+S70B241 (105kWp Solar · 482kWh BESS)
Solar Rating: 105 kWp
Battery Storage: 482 kWh BESS
Load: 37 kW irrigation pump
Renewable Cover: ~70% of 24/7 load
Annual Diesel Savings: $199,655
Payback Period: 2.2–2.3 years
System Lifespan: 30 years
Reliable irrigation in remote Western Australia depends on uninterrupted power. Running a 37kW bore pump around the clock consumes approximately 888kWh of energy per day.
With no grid access, this load was met entirely by diesel generation. At WA's prevailing diesel price of $2.20 per litre, daily diesel consumption reached 355 litres per day. That equates to a daily fuel cost of $781 and an annual diesel expenditure of $285,065, before accounting for fuel delivery logistics, generator maintenance, or exposure to fuel price increases.
For a remote operation, the cost and complexity of diesel dependency compounds over time. Fuel delivery delays create operational risk. Generator downtime creates irrigation gaps. And with diesel prices subject to ongoing volatility, the annual cost is unpredictable and rising.
Two PHNXX Integrated Power Modules replace diesel generation for the operation, delivering 105kWp of solar generation paired with 482kWh of battery storage for continuous 24/7 pump operation.
System configuration:
Peak sun hours assumed (WA): 5.5 hrs/day
Renewable share of 24/7 load: ~70%
Diesel displaced — daily: 248 litres
Daily savings @ $2.20/L: $547
Annual savings @ $2.20/L: $199,655
The system covers approximately 70% of the 24/7 pump load from renewable energy. The remaining 30% is met by reduced diesel generation, retained as backup for extended low-generation periods.
$199,655 Annual diesel savings at $2.20/L
2.2–2.3 years Payback period — against a 30-year system lifespan
248L Diesel displaced per day
~70% Renewable share of continuous pump load
At $199,655 in annual diesel savings, the system cost is recovered in approximately 2.2–2.3 years — against a 30-year system lifespan. Every year beyond payback is pure operating cost reduction.
No Grid Required Fully self-contained — no grid connection, no infrastructure upgrades, no waiting on utilities.
Uninterrupted Irrigation Power Battery storage keeps irrigation running on schedule — not subject to weather or fuel delays.
Deploy in Days Pre-assembled before leaving the factory. Minimal groundwork, no construction delays.
Modular and Scalable Add modules as your operation grows — no system redesign required.
Remote Monitoring Integrated EMS provides real-time visibility of energy generation, battery state, and diesel usage from anywhere.
Running a remote irrigation operation on diesel? PHNXX can model your site's savings potential before you commit. Get in touch.