Castlerock Consulting

Castlerock Consulting

PT Castlerock Consulting

Jakarta, Indonesia

SolarWindHydroGeothermalBiomassEnergy StorageOther
Founded 199611-50 employees
Profile last updated: April 16, 2026

About

Founded in 1996, Castlerock Consulting is a renewable energy company headquartered in Jakarta, Indonesia with approximately 11-50 employees specializing in Solar, Wind, Hydro.

Castlerock Consulting is an energy and infrastructure advisory firm founded in Jakarta in 1996 as PT Hagler Bailly Indonesia. It was later renamed PT PA Consulting Indonesia and became PT Castlerock Consulting in 2009. It advises governments, state-owned and private enterprises, and financial institutions on renewable energy markets, energy policy and regulation, utility strategy, project preparation, and infrastructure including water, transport and solid waste. It operates a Singapore subsidiary, Castlerock Consulting Pte Ltd, serving the wider region. Clients include multilateral and bilateral agencies such as the World Bank, Asian Development Bank, KfW and AFD.

Headquarters

Jakarta, Indonesia

Founded

1996

Employees

11-50

Focus areas

energy advisoryrenewable energygeothermalenergy policyproject preparationinfrastructure advisorypublic-private partnershipIndonesia

Products & services

Business models

B2B

Value chain

ConsultingAdvisoryDevelopment

Service areas (1)

  • Energy and infrastructure advisory

    Policy and strategy, renewable energy market assessment, project preparation and due diligence, and implementation support for energy and infrastructure clients.

Locations

Headquarters

Jl. Iskandarsyah Raya 1A, 12160, Jakarta, Indonesia

Operating locations (1)

  • Fullerton Road 1, Singapore, Singapore

Service regions

IndonesiaSoutheast AsiaPacific region

Projects

3

Business Strategy Development for PT PLN Geothermal

Geothermal

Advisory assignment to help PLN Geothermal establish a business strategy and a detailed implementation plan, including stakeholder engagement.

Jakarta, IndonesiaClient: PT PLN Geothermal

Determining the Economic Value of the Matenggeng Pumped Storage Hydroelectric Power Project

Pumped storage hydro

World Bank-financed assignment to determine the economic value of the Matenggeng pumped storage project through long-term dispatching analysis.

Indonesia

Alternative Renewable Energy Procurement Strategy for PT PLN

Renewable energy procurement

Research assignment to identify procurement strategies to accelerate renewable energy deployment during Indonesia's power sector transition.

IndonesiaClient: PT PLN

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