Proposal for a 100,000 Mt/day Seawater Desalination Plant in Indonesia

Geodyn Solutions proposes a 100,000 Mt/day (100,000 m³/day) seawater desalination plant in North Jakarta, Indonesia, to address critical freshwater shortages. Using enhanced propri- etary GeoRO™, GeoGraphene™, GeoSolar™, GeoHybrid™, GeoForward™, and GeoZero™ tech- nologies, the plant maximizes efficiency and sustainability. GeoZero™ recovers 1,500 tons/day of salts for fertilizers and commodities, generating $64.20M/year net profit. With a 25% con- tingency, 0% Bappenas loans, World Bank grants, and BKPM tax incentives, it achieves a 10- year ROI of 159.26 %, creates 880–1,180 jobs, and aligns with Indonesia’s water security goals.

1 Project Overview

Objective: Deliver 100,000 m³/day potable water for urban, industrial, and agricultural
Location: North Jakarta (solar potential: 5.0 kW h m−2 d−1 to 5.5 kW h m−2 d−1).
Technology: Enhanced GeoRO™, GeoGraphene™, GeoSolar™, GeoHybrid™, GeoForward™, GeoZero™.
Capacity: 100,000 m³/day, expandable to 150,000 m³/day.
Timeline: 4 years (2025–2029): 1 year feasibility/permitting, 2 years construction, 1 year

2 Technical Design

The plant uses optimized Geodyn technologies:

Pre-treatment: GeoClean™ Ultrafiltration and Dissolved Air Flotation for GeoGraphene™
Core Desalination: GeoRO™ with enhanced ERDs (1.8 kW h m−3 to 2.3 kW h m−3) and Ge- oGraphene™ with graphene oxide coatings (99.8 % salt rejection, 25 % less energy).
Energy: GeoSolar™ 50 MW perovskite photovoltaic ($0.07 kW⁻¹ h) with grid backup ($0.12 kW⁻¹ h), cutting costs by 42 %.
Post-treatment: GeoPure™ for WHO-compliant water (<500 mg/L TDS).
Brine Management: GeoZero™ recovers 1,500 tons/day salts (NaCl, KCl, MgCl₂/MgSO₄, CaCO₃).

Automation: GeoSmart™ AI reduces OPEX by 15 %.

3 Technologies for Profitability

Optimized technologies enhance ROI:

GeoGraphene™: Cuts energy use by 25 % (∼1.8 kW h m−3), extends membrane life to 12
GeoSolar™: Reduces energy costs to $0.07 kW⁻¹
GeoForward™: Lowers GeoZero™ energy costs by 20 %.
GeoSmart™: Cuts maintenance costs by 15 %.
GeoZero™: Generates $64.20 net profit, offsetting OPEX by 35 %.

4 Most Efficient Technologies for ROI

GeoRO™ with ERDs: 1.8 kW h m−3 to 2.3 kW h m−3, $0.24 m−3 to 0.75 m−3,
GeoHybrid™ RO-MED: Uses waste heat, cutting energy costs by 25 %.
GeoSolar™: Reduces energy costs by 35 % to 42 %.
GeoZero™: Adds brine byproduct

5 Brine Valorization: Fertilizer and Commodity Production

GeoZero™ recovers 1,500 tons/day (547,500 tons/year) from 15,400 m³/day brine (100–120 g/L TDS):

• Fertilizers:

– KCl (82,125 tons, $300 to 400 ): $24.64 to 32.85 .

– MgSO₄ (54,750 tons, $200 to 300 ): $10.95 to 16.43 .

– CaCO₃ (27,375 tons, $100 to 150 ): $2.74 to 4.11 .

• Commodities:

– NaCl (383,250 tons, $50 to 100 ): $19.16 to 38.33 .

– MgCl₂ (54,750 tons, $200 to 300 ): $10.95 to 16.43 .

Process: 15 nanofiltration trains, high-efficiency electrochemical cells, multi-effect evapora- tors using GeoHybrid™/GeoSolar™ waste heat yield 70 % NaCl, 15 % KCl, 10 % MgCl₂/MgSO₄, 5 % CaCO₃.
Output: Revenue $57.51 to 91.71 (midpoint $74.61), net profit $64.20 after $10.41 costs ($0.30 m−3).
Feasibility: Indonesia’s agriculture (13 % GDP, 7.5 ) and industry (4 ) ensure demand, with ASEAN exports.
Environmental Benefits: Maintains near-zero discharge, supports sustainable

6 Feasibility Studies

Water Demand: 20 % shortfall by 2035, Jakarta subsidence (10 cm/year).
Site Selection: North Jakarta minimizes distribution costs, EIAs assess marine
Technical Feasibility: GeoRO™/GeoGraphene™ match Singapore’s Jurong Island (3.5 kW h m−3, targeting 1.3 kW h m−3).
Regulatory Framework: Requires EIAs, brine monitoring, community

7 Capital Expenditure (CAPEX)

Total CAPEX: $343.75, reduced to $334.75 with tax incentives, validated against Carlsbad ($250 for 35 MGD):

Direct Costs (58.2 %, $200):
- GeoRO™/GeoGraphene™ (enhanced): $68
- GeoSolar™ 50 MW (perovskite): $55
- Piping/infrastructure: $20
- Site development: $11
- GeoZero™ expansion: $35
- GeoForward™/GeoHybrid™ upgrades: $11
Indirect Costs (5.8 %, $20):
- Engineering/design: $9
- Permitting/EIAs: $8
- Financing/legal: $3
Contingency (25 %): $68.75
Tax Incentives: $9 via BKPM

8 Operational Expenditure (OPEX)

Annual OPEX: $29.77 ($0.86 m−3), 95 % availability (34,675,000 m³/year):

Energy (21 %): $6.25 (1.8 kW h m−3, $0.07 kW⁻¹ h).
Labor (3 %): $0.90.
GeoGraphene™ Replacement (2 %): $0.72 (12 years).
Maintenance (4 %): $1.15.
Consumables (2 %): $0.49.
GeoZero™ Processing (35 %): $10.41 ($0.30 m−3).
Fixed Costs (33 %): $9.85.

9 Employment Costs

Construction (2 years): 630–830 jobs, $8.2 : 200 engineers ($25.000 , $5), 400 workers ($7.000 ,

$2.8), 80 managers ($25.000 , $0.4).

Operational: 60 jobs, $0.90 (3 % escalation): 20 technicians ($18.000 , $0.36), 10 engineers ($25.000 , $0.25), 30 support ($6.300 , $0.29).
Indirect Jobs: 200–300 in supply chains/services.
Training: $0.1 with

10 Water Pricing

Price: $0.80 m−3, competitive ($0.60 m−3 to 1.20 m−3), 7 % margin over OPEX ($0.86 m−3). Sub- sidies may lower to $0.55 m−3.
Revenue: 34,675,000 m³/year × $0.80 m−3 = $27.74 , plus $64.20 GeoZero™, totaling $91.94 .

11 Government Support and Incentives

0% Loan: Bappenas 0% interest loan for 50 % CAPEX ($171.875, 30 years).
World Bank: Grants of $10 to 30 for sustainable water
Tax Incentives: BKPM tax holidays/import duty exemptions, $9 CAPEX
Impact: Reduces CAPEX to $334.75, boosts

12 Return on Investment (ROI)

• Assumptions:

Revenue: $91.94
OPEX: $29.77
CAPEX repayment: $11.16 (30-year, 0% for $171.875, 5 % for $162.875, 5-year interest-only)
Net Cash Flow: $91.94 – $29.77 – $8.14 (Years 1–5) = $54.03; $91.94 – $29.77 – $11.16 (Years 6–10)

= $51.01

Total 10-Year Cash Flow: ($54.03 × 5) + ($51.01 × 5) = $525.20
ROI: ($525.20 / $334.75) × 100 % = 159.26 %
Break-even: ∼3

10-Year Return Table
10-Year ROI Graph
Environmental Impact
GeoZero™: Recovers 1,500 tons/day salts, maintaining near-zero

Table 1: 10-Year Financial Projections with Brine Valorization

10-Year ROI with Brine Valorization

Figure 1: Cumulative cash flow rises from $54.03M to $525.20M, break-even ∼3 .

Marine Ecosystem: GeoIntake™ low-velocity systems, EIAs ensure
Carbon Footprint: GeoSolar™ cuts emissions by ∼35.000 .
Community: Consultations address concerns; fertilizers aid

16 Economic and Social Benefits

Water Security: Serves 500,000–1,000,000 residents/industries.
Job Creation: 630–830 construction, 60 permanent, 200–300 indirect
Economic Impact: Boosts GDP by 0.5 % to 1 %.

17 Risks and Mitigation

Cost Overruns: 25 % contingency ($68.75).
Environmental: EIAs, GeoZero™ ensure
Energy Costs: GeoSolar™ with grid
Market Saturation: Diversified products, ASEAN
Social Resistance: Community benefits (training, infrastructure).

18 Financing Strategy

PPP Model: Partners with Bappenas, World Bank, Asian Development
Loan: 50 % ($171.875) 0% via Bappenas, 50 % ($162.875) 5 %, 30-year, 5-year interest-only.
Grants/Incentives: World Bank grants ($10 to 30), BKPM tax exemptions ($9).
Revenue: $0.80 m−3 + $64.20 GeoZero™.

19 Summary of Technologies and ROI Impact

20 Conclusion

Geodyn Solutions’ 100,000 Mt/day desalination plant, powered by enhanced GeoRO™, Ge- oGraphene™, GeoSolar™, and GeoZero™, delivers water at $0.80 m−3, achieving a 159.26 % ROI over 10 years, break-even by Year 3, with 25% contingency, 0% loans, World Bank grants, and BKPM incentives. GeoZero™ generates $64.20 from fertilizers (KCl, MgSO₄, CaCO₃) and com- modities (NaCl, MgCl₂), creating 880–1,180 jobs. Initiate EIAs by Q4 2025 for 2026 construction.