Executive Viability Abstract
This feasibility study evaluates the integration of utility-scale solar photovoltaic (PV) systems with Reverse Osmosis (RO) desalination plants along Australia's coastline. The project aims to provide sustainable, low-carbon water security for metropolitan areas, mining operations, and agricultural hubs. By leveraging Australia's high solar irradiance, the facility significantly reduces the operational expenditure (OPEX) traditionally associated with energy-intensive desalination, making it a viable long-term infrastructure asset in a water-scarce economy.
Return on Investment
14.2%
Payback Span
11.5 years
Net Present Value
$412,500,000 AUD
IRR Index
13.8%
## Market Analysis
Australia's water market is driven by increasing drought frequency and a growing population. The market for industrial and municipal water is expected to reach $12.5 billion by 2030. Key demand centers include the Perth metropolitan area, the Eyre Peninsula, and the Hunter Valley. Competition is limited to aging, grid-dependent desalination plants with high carbon footprints.
## Capex Summary
The estimated Initial Capital Expenditure (CAPEX) is $1.15 Billion AUD. This includes:
- $450M for the Reverse Osmosis Plant (50 GL/year capacity)
- $320M for 300MW Solar PV Array & Energy Storage
- $200M for Intake/Outfall infrastructure and brine management
- $180M for Land acquisition, permitting, and EPC fees.
## Revenue Model
Revenue is generated through three primary streams:
1. Long-term Water Purchase Agreements (WPAs) with state water utilities (60% share).
2. Direct supply contracts to the Mining & Resources sector at premium rates (25% share).
3. Sale of excess solar energy back to the National Electricity Market (NEM) during peak periods (15% share).
## Risk Assessment
Key risks include regulatory delays regarding brine discharge environmental impacts and capital cost fluctuations due to global supply chain issues for PV components. Mitigation involves utilizing advanced 'Zero Liquid Discharge' (ZLD) technologies and securing fixed-price EPC contracts.