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 freshwater shortages. Using proprietary GeoRO™, Ge- oGraphene™, GeoSolar™, GeoHybrid™, GeoForward™, and GeoZero™ technologies, the plant ensures efficiency and sustainability. GeoZero™ recovers salts for fertilizers and commodi- ties, generating $1M/year net profit. With 0% government loans, World Bank grants, and tax incentives, it achieves a 10-year ROI of 17.86 %, creates 860–1,160 jobs, and aligns with Indone- sia’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 m2 d1 to 5.5 kW h m2 d1).
  • Technology: 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 Geodyn’s proprietary technologies:

  • Pre-treatment: GeoClean™ Ultrafiltration and Dissolved Air Flotation minimize fouling for GeoGraphene™ membr
  • Core Desalination: GeoRO™ with ERDs (2.0 kW h m3 to 2.5 kW h m3) and GeoGraphene™ Membranes (99.8 % salt rejection, 20 % less energy).
  • Energy: GeoSolar™ 30 MW photovoltaic ($0.08 kW1 h) with grid backup ($0.12 kW1 h), cut- ting costs by 30 %.
  • Post-treatment: GeoPure™ Remineralization for WHO-compliant water (<500 mg/L TDS).
  • Brine Management: GeoZero™ recovers 5–10 tons/day salts (NaCl, KCl, MgCl₂/MgSO₄, CaCO₃).
  • Automation: GeoSmart™ AI reduces OPEX by 15 %.

3 Technologies for Profitability

Geodyn’s technologies enhance ROI:

  1. GeoGraphene™: Cuts energy use by 20 % to 30 % (∼2 kW h m3), extends membrane life to 8–10
  1. GeoSolar™: Reduces energy costs to $0.08 kW1
  1. GeoForward™: Lowers GeoZero™ energy costs by 10 % to 15 %.
  1. GeoSmart™: Cuts maintenance costs by 15 %.
  1. GeoZero™: Generates $1 net profit from salts, offsetting OPEX by 6 %.

4  Most Efficient Technologies for ROI

  1. GeoRO™ with ERDs: 2.0 kW h m3 to 2.5 kW h m3, $0.26 m3 to 0.80 m3,
  1. GeoHybrid™ RO-MED: Uses waste heat, cutting energy costs by 20 %.
  1. GeoSolar™: Reduces energy costs by 30 % to 40 %.
  1. GeoZero™: Adds brine byproduct

5 Brine Valorization: Fertilizer and Commodity Production

GeoZero™ recovers 5–10 tons/day of salts from 1.5–2 million m³/year brine (40–50% water recovery):

•    Fertilizers:

  • KCl ($300 to 400 ): Potash for agriculture (7.5 demand).
  • MgSO₄ ($200 to 300 ): For magnesium-deficient
  • CaCO₃ ($100 to 150 ): Soil

•    Commodities:

  • NaCl ($50 to 100 ): Industrial use (4 demand).
  • MgCl₂ ($200 to 300 ): Cement, dust
  • Process: Nanofiltration and electrochemical separation yield 70 % NaCl, 15 % KCl, 10 % MgCl₂/MgSO₄,

5 % CaCO₃. Crystallization uses GeoHybrid™/GeoSolar™ waste heat.

  • Output: 1,825–3,650 tons/year, revenue $0.219 to 0.538 (midpoint $0.379M). Net profit: $1 after $2.65 costs ($0.076 m3).
  • Feasibility: Indonesia’s agriculture (13 % GDP) and industrial markets ensure demand, with ASEAN export
  • Environmental Benefits: Reduces brine discharge by 50 %, supports sustainable agricul-

6          Feasibility Studies

  • Water Demand: 20 % freshwater shortfall by 2035, Jakarta subsidence (10 cm/year) neces- sitates
  • Site Selection: North Jakarta minimizes distribution EIAs assess marine impacts.
  • Technical Feasibility: GeoRO™/GeoGraphene™ match Singapore’s Jurong Island (3.5 kW h m3, targeting 1.5 kW h m3).
  • Regulatory Framework: Requires EIAs, brine monitoring, community

7          Capital Expenditure (CAPEX)

Total CAPEX: $180, reduced to $171 with tax incentives:

  • Direct Costs (70 %, $126): GeoRO™/GeoGraphene™ ($60), GeoSolar™ 30 MW ($35), piping ($20), site ($11).
  • Indirect Costs (10 %, $18): Engineering ($8), permitting/EIAs ($7), financing/legal ($3).
  • Contingency (20 %): $36.
  • Tax Incentives: $9 via BKPM

8          Operational Expenditure (OPEX)

Annual OPEX: $19.08 ($0.55 m3), 95 % availability (34,675,000 m³/year):

  • Energy (34 %): $6.57 (2.5 kW h m3, $0.08 kW1 h).
  • Labor (4 %): $0.83.
  • GeoGraphene™ Replacement (4 %): $0.82 (8 years).
  • Maintenance (6 %): $1.
  • Consumables (3 %): $0.
  • GeoZero™ Processing (14 %): $2.65 ($0.076 m3).
  • Fixed Costs (35 %): $6.57.

9          Employment Costs

  • Construction (2 years): 600–800 jobs, $8 : 200 engineers ($25.000 , $5), 400 workers ($6.000 ,

$2.4), 100 managers ($30.000 , $0.6).

  • Operational: 60 jobs, $0.83  (3 % escalation):  20 technicians ($20.000 , $0.4), 10 engineers ($25.000 , $0.25), 30 support ($6.000 , $0.18).
  • Indirect Jobs: 200–300 in supply chains/services.
  • Training: $0.1 with

10          Water Pricing

  • Price: $0.75 m3, competitive ($0.60 m3 to 1.20 m3), 36 % margin over OPEX ($0.55 m3). Subsidies may lower to $0.50 m3.
  • Revenue: 34,675,000 m³/year × $0.75 m3 = $26.01 , plus $1 GeoZero™, totaling $27.01 .

11          Government Support and Incentives

  • 0% Loan: Bappenas 0% interest loan for 50 % CAPEX ($90, 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 $171, boosts R

12          Return on Investment (ROI)

•    Assumptions:

  • Revenue: $27.01

–  OPEX: $19.08

  • CAPEX repayment: $5.7 (30-year, 0% for $90, 5 % for $81, 5-year interest-only)

Net Cash Flow: $3.88 (Years 1–5), $2.23 (Years 6–10)

–  Total 10-Year Cash Flow: ($3.88 × 5) + ($2.23 × 5) = $30.55

–  ROI: ($30.55 / $171) × 100 % = 17.86 %

  • Break-even: ∼7

13          10-Year Return Table

Table 1: 10-Year Financial Projections with Brine Valorization

10-Year ROI with Brine Valorization

14          10-Year ROI Graph

  • Environmental Impact
  • GeoZero™: Recovers 5–10 tons/day salts, reducing discharge by 50 %.
  • Marine Ecosystem: GeoIntake™ low-velocity systems, EIAs ensure
  • Carbon Footprint: GeoSolar™ cuts emissions by ∼35.000 .
  • Community: Consultations address noise, visual concerns; fertilizers aid

16          Economic and Social Benefits

  • Water Security: Serves 500,000–1,000,000 residents/industries.
  • Job Creation: 600–800 construction, 60 permanent, 200–300 indirect
  • Economic Impact: Boosts GDP by 0.5 % to 1 %.

17          Risks and Mitigation

  • Cost Overruns: 20 % contingency ($36).
  • 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 government, World Bank, Asian Development
  • Loan: 50 % ($90) 0% via Bappenas, 50 % ($81) 5 %, 30-year, 5-year interest-only.
  • Grants/Incentives: World Bank grants ($10 to 30), BKPM tax exemptions ($9).
  • Revenue: $0.75 m3 + $1  GeoZero™.

19          Summary of Technologies and ROI Impact

Technology

Efficiency (kWh/m³)

Cost ($/m³)

ROI Impact

GeoRO™

2.0–2.5

0.26–0.80

High: Scalable

GeoGraphene™

GeoSolar™ GeoHybrid™

2.0

2.0–2.5

3.0–5.0

0.26–0.70

0.26–0.60

0.50–0.80

High: 20 % energy savings

High: 30 % to 40 % cost cut Moderate: Waste heat

GeoForward™

1.8–2.2

0.40–0.80

Moderate: Brine recovery

GeoZero™

N/A

0.05–0.10

High: $1

Table 2: Summary of Proprietary Technologies

20    Conclusion

Geodyn Solutions’ 100,000 Mt/day desalination plant, powered by GeoRO™, GeoGraphene™, GeoSolar™, and GeoZero™, delivers water at $0.75 m3, achieving a 17.86 % ROI over 10 years, break-even by Year 7, with 0% loans, World Bank grants, and tax incentives. GeoZero™ gener- ates $1 from fertilizers (KCl, MgSO₄, CaCO₃) and commodities (NaCl, MgCl₂), creating 860–1,160 jobs. Initiate EIAs by Q4 2025 for 2026 construction.

21  Contact

Geodyn Solutions

Email:info@geodynsolutions.com

Proposal for a 100000 Mt-day Seawater Desalination
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Proposal for a 100,000 Mt/day Seawater Desalination Plant in Indonesia