Hydropower Investment in Indonesia: An Investor Guide

Hydropower investment in Indonesia gives foreign companies several routes into the electricity sector. You can develop a generating plant, acquire an interest in an existing project, or supply equipment and engineering services to developers. The right entry model depends on what your company intends to own, how it expects to earn revenue, and which project risks it can manage.

Indonesia’s electricity expansion plan provides a substantial development pipeline. Before committing capital, however, investors need to establish whether a particular project has sufficient water resources, the necessary site rights, grid access, and a credible electricity buyer.

What Indonesia’s Hydropower Pipeline Means for Investors

Indonesia plans to add substantial hydropower capacity under PLN’s Electricity Supply Business Plan, known as the RUPTL, for 2025-2034. The Ministry of Energy and Mineral Resources (ESDM) announced the plan on May 26, 2025.

According to PLN’s June 5, 2025 release, the plan includes 69.5 GW of additional generation and energy-storage capacity. Hydropower generation accounts for 11.7 GW, while the plan reports pumped storage separately within its energy-storage component.

Investors should keep these categories separate when assessing the size of the market.

The RUPTL received ministerial approval through ESDM Ministerial Decision No. 188.K/TL.03/MEM.L/2025. It sets out PLN’s electricity supply development plan for the ten-year period.

For an investor, the plan is a starting point for identifying potential markets. It does not establish that every proposed hydro project has secured procurement approval, financing, a power purchase agreement, or the permissions needed for construction.

A useful next step is to identify the proposed project and its development stage. That will tell you which documents to request and whether the investment opportunity involves a producing asset, an unfinished project, or an early-stage development proposal.

For background on the industry’s structure and plant types, see our guide to Indonesia’s hydroelectric power station industry. Our renewable energy investment overview covers the wider electricity sector.

Four Ways Foreign Investors Can Enter Indonesia’s Hydropower Sector

The first commercial decision concerns your company’s role. Owning a generating asset, buying into a developer, and selling equipment to a power project require different operating capabilities.

The table below separates four entry models that foreign companies may consider.

A foreign turbine manufacturer, for example, may establish an Indonesian company to supply equipment to local developers. It would assess customer demand, import requirements, working capital, and after-sales support.

A developer acquiring an interest in a hydropower station faces another set of questions. It needs to assess the project’s water resources, electricity sales arrangements, site rights, and outstanding development obligations.

These distinctions matter when comparing hydropower companies in Indonesia. Businesses operating within the same industry may have different sources of income and different licensing requirements.

Run-of-River, Reservoir, and Pumped Storage Projects Have Different Economics

Hydropower technology affects how a plant generates electricity, when it can deliver power, and which costs belong in its financial model. Investors should understand the proposed plant design before comparing projects by installed capacity.

Run-of-River Hydropower

A run-of-river plant uses the natural flow of a river and the available elevation difference to generate electricity. Storage may be limited, making seasonal water conditions particularly relevant to production.

Investors need to examine the river’s flow-duration curve, available net head, turbine design, and expected annual generation.

A project forecast based mainly on wet-season measurements may overstate the electricity available during drier months. The financial model should reflect realistic water availability throughout the year.

Reservoir Hydropower

Reservoir hydropower gives an operator greater control over water releases, subject to the facility’s storage capacity and operating requirements.

Investors must examine the reservoir’s relationship with surrounding land, local communities, and downstream water users. Sedimentation, biodiversity, dam safety, and environmental-flow obligations can affect construction and long-term operation.

Where the project requires resettlement or livelihood restoration, the investment budget and development timetable need to reflect those obligations.

A large reservoir may also involve associated facilities beyond the generating station. Access roads, transmission corridors, and downstream effects should form part of the project assessment.

Pumped Storage Hydropower

Pumped storage uses electricity to move water to an upper reservoir. When the power system requires electricity, the plant releases water through turbines to generate power.

Unlike a conventional river-fed plant, pumped storage consumes electricity when pumping and supplies electricity when generating.

Its investment case should therefore account for pumping-energy costs, round-trip energy losses, dispatch requirements, contracted storage or system services, and the actual payment mechanism.

Investors should avoid applying a conventional hydropower electricity tariff to all pumped-storage output without examining the relevant contract.

The RUPTL’s 11.7 GW hydropower-generation figure should not be treated as including all planned pumped-storage capacity. PLN reports energy storage separately within its 69.5 GW generation and storage expansion plan.

As a historical financing example, the World Bank announced in September 2021 the approval of a US$380 million loan to support the planned 1,040 MW Upper Cisokan pumped-storage project.

The 2021 announcement does not establish the project’s construction status in 2026, its total development cost, or the availability of equity for private investors.

Water, Land, and Grid Access Determine Whether a Site Can Support Investment

A site may have an attractive elevation difference and substantial river flow while still lacking the conditions needed for commercial operation.

Before negotiating a project investment, request evidence supporting the generation forecast, site control, and planned electricity delivery arrangements.

Check the Hydrological Evidence

The developer’s hydrological study should explain the source and duration of its river-flow measurements. Ask how the study handles missing observations, seasonal variation, and periods of unusually low rainfall.

Review the flow-duration curve and the assumptions used to estimate available water after environmental-flow and other applicable water-use requirements.

The generation model should connect those assumptions to net head, turbine efficiency, expected downtime, and annual electricity production.

Where the model reports probability-of-exceedance cases, examine what P50 and P90 represent for the stated assessment period.

The key financial question concerns deliverable energy. A plant’s installed capacity, measured in megawatts, does not establish how many megawatt-hours it will produce and deliver under the project’s operating conditions.

Verify the Entire Project Footprint

Review land and access rights for the intake, powerhouse, reservoir where applicable, access roads, and transmission corridor.

Check which entity holds each right and whether the documents cover the land or water resources that the project intends to use.

A developer may have secured the powerhouse site while negotiations for the transmission route remain unfinished. That gap can affect the project timetable and the investment required before construction.

Confirm the Grid Connection Plan

Ask the relevant electricity system parties about the proposed interconnection point and the network works needed to accommodate the plant.

Review the grid study, connection correspondence, transmission requirements, and responsibility for construction and testing.

If the project requires a new substation or transmission reinforcement, identify who will pay for it and when the works must be completed.

Investors should also examine any restrictions that could prevent the plant from delivering electricity at its forecast output.

How PLN Procurement and Power Purchase Agreements Affect Revenue

Projects proposing to sell electricity to PLN need a credible route through the applicable procurement process and a commercially workable electricity sales arrangement.

This section addresses PLN offtake. Captive generation, other lawful electricity supply arrangements, and equipment or service contracts require separate assessments of their permitted business models and revenue sources.

Presidential Regulation No. 112 of 2022 forms part of Indonesia’s framework for accelerating renewable electricity development. ESDM Regulation No. 5 of 2025 provides guidelines for renewable electricity power purchase agreements, known in Indonesia as Perjanjian Jual Beli Listrik (PJBL).

A power purchase agreement (PPA) sets out the commercial relationship between the generator and electricity buyer. Its terms affect revenue, project financing, and the allocation of development and operating risks.

If a project already has a signed PPA, request the complete agreement and relevant amendments. For an earlier-stage project, examine the procurement documents and evidence supporting the proposed route to an electricity sale.

Revenue and Payment Terms

Review the contracted tariff, energy or availability commitments, payment schedule, and any applicable price adjustment provisions.

Determine which assumptions the financial model takes directly from the signed contract and which remain subject to negotiation.

Commercial Operation and Performance

Examine the contractual commercial operation date, commissioning tests, plant performance obligations, and grid connection responsibilities.

Review the consequences of delayed commissioning and the conditions under which the buyer may restrict or decline electricity delivery.

Termination and Lender Requirements

Investors and lenders need to understand termination provisions, compensation arrangements, assignment rights, and protections relevant to project financing.

Use the actual agreement to establish each party’s obligations. Regulatory guidelines alone cannot confirm a particular project’s tariff, financing eligibility, or commercial terms.

A Six-Gate Due Diligence Framework for Hydropower Investment

Investors should ask developers to support their commercial and technical claims with documents before committing substantial development capital or completing an acquisition.

The following framework can help an investment team organize its initial review. Each gate identifies evidence that deserves further examination by the appropriate specialists.

These checks address different sources of investment risk. A project can have a credible electricity buyer and still face unresolved land acquisition or environmental requirements.

The World Bank Group’s hydropower resources also emphasize the environmental and social issues associated with project development. Their relevance and scale depend on the facility’s design, location, and affected communities.

Investors acquiring an Indonesian company should extend the review to corporate documents, tax, contracts, and outstanding legal obligations. Our Indonesia investment due diligence checklist covers the wider transaction review that complements hydro-specific technical assessment.

Foreign Ownership and Hydropower Licensing in Indonesia

Foreign companies planning to operate in Indonesia need an appropriate legal entity and business licenses for their intended activities. A PT PMA is the usual corporate structure considered for a foreign-investment limited liability company.

The ownership structure and required permissions depend on the company’s actual business activities. A generating company, EPC contractor, and equipment distributor should not assume they can use the same business classification or licensing route.

Check Foreign Ownership Conditions for the Proposed Activity

Indonesia’s investment business-field framework includes Presidential Regulation No. 10 of 2021, as amended by Presidential Regulation No. 49 of 2021.

Before finalizing an ownership structure, investors should identify the proposed activity and examine the applicable foreign investment conditions.

A company developing a generating asset needs to check the rules for that activity. A foreign contractor or supplier should assess its own activities separately.

Our Indonesia Positive Investment List guide explains how the business-field framework affects foreign investors.

Match KBLI Codes to the Company’s Actual Activities

Indonesia adopted KBLI 2025 through Statistics Indonesia (BPS) Regulation No. 7 of 2025.

Investors should select the classification that matches the company’s intended activities and check the applicable code description and conversion in OSS and AHU.

According to BPS, the transition from KBLI 2020 to KBLI 2025 does not, by itself, invalidate existing business licenses or require businesses to obtain new licenses.

Where a business has no substantive change in its activities, the relevant system performs the code conversion automatically. Changes to the company’s purposes or scope of business may require an update through OSS or AHU.

This distinction matters when acquiring an existing Indonesian hydropower business. Compare the company’s registered activities with the operations and contracts the investor expects it to undertake.

Our guide to choosing KBLI codes for a PT PMA provides a more detailed explanation of the classification process.

Separate Company Registration From Project Permissions

Government Regulation No. 28 of 2025 governs risk-based business licensing and replaced Government Regulation No. 5 of 2021. ESDM Regulation No. 7 of 2026 establishes business-activity standards for the energy and mineral resources sector.

A PT PMA registration and business identification number, known as NIB, do not establish every right needed to construct and operate a hydropower project.

The project review should verify the applicable OSS risk classification, electricity-business authorization, and technical operating requirements.

Investors should also examine the relevant land, spatial, environmental, and water-resource approvals.

The required documents and issuing authorities depend on the project’s capacity, business activity, location, and development stage. Investors should therefore verify the requirements for the actual project rather than relying on a generic permit checklist.

Our guide to industry-specific licenses after PT PMA registration explains why incorporation and operational readiness involve different compliance obligations.

Hydropower Investment Costs and Financing in Indonesia

The cost of developing a hydropower plant depends on its physical design, project location, construction requirements, and financing arrangements. A single cost-per-megawatt estimate cannot capture these differences.

Investors should build a project-specific budget that separates development expenses from construction costs and ongoing operating obligations.

Development and Construction Costs

Development costs may include feasibility studies, resource assessments, engineering design, site acquisition or access, environmental studies, and project approvals.

Construction costs depend on the civil works, electromechanical equipment, transmission connection, and associated facilities required for the project.

Access to a remote site can affect the cost of moving equipment and building supporting infrastructure. Geological conditions may also influence the design and construction budget.

The financial model should include contingency and financing costs during construction.

PT PMA Capital and Planned Investment Requirements

Investors should distinguish the financial requirements for establishing a foreign-investment company from the capital needed to develop a hydropower asset.

Under Minister of Investment and Downstreaming/Head of BKPM Regulation No. 5 of 2025, the general minimum issued and paid-up capital for a foreign-investment limited liability company is IDR 2.5 billion per company, unless another law provides otherwise.

This is distinct from the general minimum planned investment of more than IDR 10 billion, excluding land and buildings, per five-digit KBLI business field per project location, subject to the regulation’s activity-specific calculation rules and exceptions.

For example, certain construction activities follow a different KBLI aggregation rule. Investors should verify the calculation that applies to their registered business activities.

Neither the paid-up capital requirement nor the planned investment threshold is an estimate of a hydropower plant’s development or construction cost.

Article 27 of the same regulation addresses the retention of paid-up capital in the company’s account for at least 12 months, with exceptions for asset purchases, construction, and business operations. Investors should not interpret the provision as an absolute prohibition on using the funds.

For the wider foreign-investment framework, see our PT PMA minimum capital guide.

Test the Financial Model Against Water Availability and Construction Delays

Hydropower revenue depends on electricity that the plant can generate and deliver under its commercial arrangements.

Investors should test the project’s expected annual production against hydrological conditions, maintenance requirements, and any restrictions on electricity delivery.

Ask the developer to model dry-year conditions and explain how lower production affects revenue and debt servicing.

Construction delays deserve similar attention. A later commercial operation date can increase financing costs while postponing electricity sales.

For pumped-storage projects, the financial model also needs to account for purchased or otherwise supplied pumping energy and round-trip losses. The applicable storage or system-service payment arrangements must support the forecast revenue.

These sensitivities help investors understand how much additional capital a project may require under conditions that differ from the developer’s central forecast.

Preparing for Hydropower Market Entry in Indonesia

The work required before incorporation depends on whether your business will develop a plant, acquire a project, or provide services to Indonesia’s hydropower industry.

Developing or Owning a Power Plant

Identify the proposed technology, generation capacity, project site, and intended electricity buyer.

Review the resource and site-control evidence before committing substantial development funds. The project team should also establish the proposed procurement route and identify the approvals needed at each development stage.

Once the intended business activity and shareholding structure are clear, company registration can proceed alongside the appropriate project workstreams.

Acquiring an Existing Hydropower Project

Identify the legal entity holding each project right and examine the seller’s proposed transaction structure.

A share acquisition can leave historic obligations and liabilities inside the project company. An asset or development-right transaction requires separate checks on whether the relevant permits, land interests, and contracts can lawfully be transferred or reissued.

The investor should distinguish rights already secured from applications that remain under review.

For an early-stage project, the purchase agreement may need conditions addressing missing approvals, financing arrangements, or development milestones.

Supplying Equipment or Engineering Services

Foreign suppliers and contractors can participate in Indonesia’s hydropower industry without purchasing equity in a generating asset.

Start by identifying the proposed customers, contractual scope, and local delivery requirements.

A manufacturer selling turbine components needs to examine its supply and import arrangements. A company performing construction or installation work should assess the licensing and contractual obligations associated with those services.

Your business plan should reflect the revenue you expect from customers and the obligations you will undertake in Indonesia.

Establish the Right Business Structure for Your Hydropower Investment

Indonesia’s hydropower pipeline gives foreign companies several potential entry points. A generating project and a business supplying that project can have different financial requirements, operating risks, and regulatory obligations.

For plant investors, begin with the hydrological evidence, site rights, grid plan, and proposed electricity sales arrangements. For suppliers and contractors, start with the customer, service scope, and delivery model.

Once you have defined the intended activities and ownership structure, InvestinAsia’s PT PMA registration service can support the establishment of your Indonesian company.

InvestinAsia is the Indonesia market entry arm of vOffice Group. Corporate legal and licensing work in Indonesia is supported by vOffice and IZIN.co.id.

Our company registration services address the corporate establishment process. A hydropower project’s technical studies, electricity procurement, financing, and sector-specific approvals require separate assessment and appropriate specialist involvement.