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Oju Hydroelectric Project — Visual & Conceptual Aids

Oju Hydroelectric Project — Visual & Conceptual Aids

Vector SVG previews • Editable labels • Downloadable

1️⃣ Map — Subansiri Basin & Cascade Projects

Topographic-style schematic map showing Oju (2,220 MW) and neighboring projects
India — China border Redi village — Oju (uppermost) Niare Naba Nalo Dengser Upper Subansiri Lower Subansiri (2,000 MW) Oju project — 2,220 MW (near Redi) Upper Subansiri district, Arunachal Pradesh Scale: approx. 0 — 50 km Rivers in blue • Mountains shaded • Forest zones light green N
Note: stylized schematic map for concept use — not intended for navigation or precise geospatial analysis.

2️⃣ Schematic — Run-of-River + Peaking Dam Setup

Cutaway schematic with dam, 14.12 km headrace tunnel, underground powerhouse, and dam-toe powerhouse
Concrete gravity dam (100 m height) Reservoir submerged ~43 ha Reservoir — 43 ha submerged Headrace Tunnel — 14.12 km Underground Powerhouse — 2,100 MW Penstocks → Turbines → Generators Dam-toe Powerhouse — 120 MW Penstocks (pressurized flow to turbines) Transmission lines to grid Legend — blue = water, gray = civil structures, green = terrain 100-m dam • Headrace 14.12 km • Underground PH 2,100 MW • Dam-toe PH 120 MW
Schematic cross-section for conceptual design review (not an engineering drawing).

3️⃣ Flow Chart — Flood / GLOF Risk Modeling vs Design Margins

Flowchart showing modeling sequence and resilience measures
Glacial lakes in Upper Subansiri (GLOF sources) Simulation — Peak flows & dam-break Hydrodynamic modeling Design flood estimation Includes extreme rainfall & climate-change scenarios Spillway capacity & safety margins Redundancy & freeboard Early warning & monitoring Sensors, telemetry, sirens, evacuation plans Control room & operational protocols Automated gates, emergency actions Resilience & Safety Margins Design against extreme events • Redundancy 🗻 🌊 📈 🛡️ 📡 🖥️ Flow: identify GLOF sources → simulate peak flows & dam-break → determine design flood (incl. climate extremes) → provide spillway & early warning. Emphasize redundancy & operational response.
Icons are illustrative. For operational use, couple models with real hydrologic and glaciologic data.

4️⃣ Timeline — Project Schedule vs Monsoon Windows & Climate Risks

5-year horizontal timeline (2025–2030) with monsoon overlays and climate icons
2025–26 2026–27 2027–28 2028–29 2030 (Commissioning) Site prep, tunneling begins Dam foundation & powerhouse excavation Dam structure rise & headrace completion Turbine installation & testing Commissioning target — 2030 Climate risks: ☔ Rainfall extremes 🧊 Glacial melt / GLOF 🌋 Landslides ⚠️ Seismic activity Project summary Capacity: 2,220 MW • Expected generation: 8,402 million units/year Estimated cost: ₹24,942 crore Monsoon (June–Sept) shown each year as blue windows — schedule plans heavy outdoor civil works outside these windows where possible
Timeline is illustrative. Use project controls and local monsoon forecasts for operational planning.

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