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Proyek EPC Pembangkit Listrik Tenaga Panas Bumi

PostedJuly 15, 2024
UpdatedJuly 18, 2024
ByWahyu Nurhariadi

Project Cases

PT Rekayasa Industri membangun 60% dari seluruh pembangkit listrik panas bumi di Indonesia. Selalu terdapat hal spesifik dan unik dalam setiap Pekerjaan EPC – Pengembangan Panas Bumi di Indonesia.

Materi ini dikumpulkan dari beberapa dokumen proyek Pembangkit Listrik Tenaga Panas Bumi (Geothermal Powerl Plant) yang dikerjakan oleh PT Rekayasa Industri yaitu :

  1. Proposal Stage of Lumut Balai Project
  2. Project Execution of Lahendong Unit-5 & 6
  3. Project Execution of Muara Laboh Project
  4. Project Execution of Rantau Dedap Project

Skema EPC

SteamfieldPower PlantUtility, Electrical, & SwitchyardTransmission
Full EPC

  • Power Island
    • OPSI 1 : E & P by Penyedia Teknologi (sebagai Partner atau Vendor) > Performance Guarantee
    • OPSI 2 : Full EPC sebagai Kontraktor Tunggal >Performance Guarantee
Full EPC

Full EPC

Power Island Scope

  1. Resources (Engineering – Manpower Load)
  2. Schedule Proposal Development
  3. Competitiveness (Akurasi Price)

Schedule

Critical Path, Typical Project

Durasi Proyek

Durasi proyek ditentukan oleh:

Kapasitas PembangkitScopeLokasi ProyekKondisi LahanTipe Pemilik Proyek
Diluar normal scope (Steamfield, Power Plant, Switchyard/Transmission):
o Infrastrucure (Jembatan, Jalan, etc.)
o Wellpad

Remote area menambah waktu mobilisasi dan logistic, serta meningkatkan resiko sosial

o Lahan tidak rata (perbukitan/lereng gunung), akan menambah waktu buat cut & fill, export import tanah, soil improvement, etc.
o Tipe tanah

Penyesuaian kultur kerja, khususnya client asing

KEY Milestone

ContractOthers
  1. Site Handover (M-0) Wellpad (as required)
  2. Geothermal Energy (Steam) Availability (M-19)
  3. Backfeeding (M-21)
  4. Plant Start-Up/Initial SYNCHRONIZATION (M-22,5)
  5. COD / Completion (M-24)
  1. Mobilisasi Civil Sub-Contractor (M-6)
  2. Cooling Tower (13 Months Concrete Type, 10 Months FRP Type)
  3. Steel Structure (M-12 at Site)
  4. Overhead Crane (M-14 at Site)
  5. Condensor (M-15 at Site)
  6. STG & Hotwell Pump (M-16 at Site)

Construction Issues

Remote & Isolated Area

ConditionHuman ResourcesLow ProductivityMinimum InfrastructureHigh CostSocial Aspect
  1. Mountain Area, Steep
  2. High Rainfall, Foggy, Cold/Humid
  3. Conservation Area
  4. Far from Sea Port & Air Port
  5. Non-Industrial Community Area
  6. Minimum Infrastructure
  1. Limited Local Skilled Worker
  2. High Worker Turnover
  3. Medical Issues
  1. Limited Local Resources
  2. Climatic Condition
  3. Delivery Time
  4. Permits
  1. Access Road
  2. Public Facilities
  3. Communication Network
  1. Working Method
  2. Delivery / Transportation Method
  3. Access Road Maintenance
  4. Logistic & Accommodation
  5. Mobilization / Demobilization Cost
  6. Weather Downtime
  7. Worker Compensation/Allowances
  8. Social Compensation
  9. Monopoly / Cartel
  1. Limited Local Resources
  2. Access Road Blockage
  3. Land Ownership
  4. Sand/Agregat Supply
  5. Monopoly/Cartel

Unforeseen Condition

  1. Geotechnical : Foundation design and slope stability issues
  2. Weather : Rainy season troughout the year, and strong winds
  3. Access Road : Community blockage, landslide issues, and road maintenance
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