AquaVolt HSAWES Public Simulation Model

Publication-safe disclosure: This browser-based model is a public educational and scenario-screening tool. It uses standard physics and simplified economic relationships only. It does not disclose confidential algorithms, proprietary optimization logic, routing methods, site-selection methodology, source code beyond this public calculator, or patent-sensitive implementation details. The underlying intellectual property has been filed with the Saudi Authority for Intellectual Property (SAIP), and certain implementation details are intentionally omitted.

1. Scenario Inputs

Preset scenario

Strategic surface storage (Mm³)

Aquifer bank / MAR reserve (Mm³)

National demand basis (Mm³/day)

Annual desalinated transfer (Mm³/year)

Transfer pumping head (m)

Transfer pump efficiency (%)

Daily off-peak pumping window (hours/day)

Active PSH water swing (Mm³)

PSH gross head (m)

Turbine efficiency (%)

PSH pump efficiency (%)

CAPEX (SAR billion)

Gross annual benefit (SAR billion/year)

OPEX (SAR billion/year)

Discount rate (%)

Evaluation life (years)

2. Simulation Outputs

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Strategic reserve days

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Annual transfer energy

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Off-peak pumping load

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Gross PSH energy

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PSH round-trip efficiency

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NPV

Visual indicators

Reserve strength—

Energy-storage scale—

Economic attractiveness—

Detailed results

3. Model Equations

This public model uses standard, non-proprietary equations for educational scenario screening:

Strategic reserve days = (Surface storage + Aquifer bank) / Daily demand
Transfer energy intensity = ρ × g × H_transfer / (η_transfer × 3.6×10⁶)
Annual transfer energy = Transfer volume × Transfer energy intensity
Off-peak pumping load = Annual transfer energy / annual off-peak hours
PSH generation per m³ = ρ × g × H_PSH × η_turbine / 3.6×10⁶
Gross PSH energy = Active swing volume × PSH generation per m³
Round-trip efficiency = η_pump × η_turbine
NPV = Net annual benefit × annuity factor − CAPEX

4. Suggested Website Text

AquaVolt HSAWES Public Simulation Model demonstrates how strategic water storage can be evaluated as both a water-security reserve and a renewable-energy flexibility asset. The model is intentionally simplified and publication-safe. It supports public education, stakeholder discussion, and early scenario screening while preserving intellectual property protection.