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🇮🇩 Indonesia · PGIQ Tier 3 Workable
As of June 2026 · powergridiq.com/rating/indonesia
PGIQ Rating v2 (reliability-adjusted) · as of June 2026
3

🇮🇩 Indonesia

Viable, with conditions, and the path is improving Minor flags found
Tier 3 Workable · Composite 50/100, #48 of 79 markets (fundamentals 54 minus a reliability dock) · Outlook Positive · Med confidence · how we score

Cheap, coal-backed PLN power and a booming Batam data-centre cluster, including the country's largest power deal. The drawbacks are weak grid reliability outside Java, long connection queues, and a high-carbon mix.

See live grid data →
One market,
four reads
BuildTier 3Siting ratingSellGrade AOfftakePlanRisingLoad pressureMonitorSoundGrid strength
The same market, four decisions. Open any lens to see this market ranked against the rest.
Time to energize · file to power
~24 mo
File a large load today, powered ~2028. Typical range 17 to 31 months, modelled.
Application & PLN study 6mo · Connection agreement 6mo · Network works 6mo · Construction & energization 6mo
End-to-end wait for a large new load, from an unstated start to an unstated end. Earlier milestones (initial, phased, temporary or conditional energization) are reported separately. A typical case, not a firm quote. · Source: Jakarta Post: Indonesia data-centre boom · Compare markets →
The same market, read four ways

Indonesia is a strong market to sell power into

Grade A (Strong)
Offtake score 83/100
Demand 54, build feasibility 59, combined into the score. For a seller: where buyers already pay, how tight supply is, and how feasible new build is here.
Price to beat
A 100 MW load on our standard case pays about $72/MWh delivered here. A competitive supply offer works against that level.
Connection
Connection difficulty Moderate, typical wait 1-2 years (Batam).
For new supply
PLN is signing record data-centre PPAs, the clearest new-supply opening, though outside-Java reliability and Batam's water limit where it can land.
Regulatory momentum
Mixed, stable. PLN is signing record data-centre PPAs (the 450 MW Batam deal), but connection queues could reach 24 months and grids outside Java lack hyperscale-grade reliability.
Beyond the grid
Water siting is the emerging constraint: Batam's data centres depend on rainfall-fed reservoirs, one planned cluster alone would need about 29 million litres a day, and existing plus planned sites could take roughly 8 percent of the island's water supply.
Scheduled to change
2026 to 2027: DayOne's roughly 450 MW Batam campus energizes in phases (w.media).
See it on the Offtake Grade →

Indonesia: some room at system level, rising demand pressure

Some room 56/100
System-level room, not local capacity
Local capacity: not assessed. We have found no operator publication of area or substation capacity for this market, so whether the bus serving a candidate site can take the load is an open question. Absence of a finding here is not evidence that capacity exists.
Two reads for a grid planner: how much room the system as a whole looks to have (Some room), and how hard demand is already pushing (Rising). The first is a market-level estimate from connection ease, forward adequacy and reliability margin. It is not local deliverability. Capacity at a specific substation is not assessed for this market, and a market can look roomy while the bus you want has nothing available. Confirm local capacity with the utility before relying on it.
Demand growth
Fast load growth in our read, the pull on your system.
Future firm supply
Future firm supply: adequacy flagged for a large new load.
Load Pipeline Reality → Where demand is hungry → Connection friction →

Grid Risk Annex BETA

Sound
Manageable with normal diligence · grid strength 67/100
A cited, dated grid-risk read on Indonesia for a capital provider, the banks and private-credit lenders, infrastructure funds and insurers holding or underwriting a power or data-centre exposure here. Drop it into a credit memo and watch each factor over the life of the exposure.
Read it against your asset. For a load asset (Buy), weight connection access and energization timing. For a generation or offtake asset (Sell), weight offtake demand, curtailment (when a plant is told to stop feeding the grid) and cost realisation. For a grid or transmission asset (Move), weight load-pipeline reality and buildout risk.
Rating and track record
PGIQ Tier 3 Workable, outlook Positive, Med confidence. Scored on a public, dated, falsifiable record you can cite in a credit memo.
Delivery reliability
Minor flags found in the bulk and local outage record we reviewed.
Future firm supply
Future firm supply: adequacy flagged.
Cost certainty
Recurring cost about $72/MWh (band $62 to $90) for the standard 100 MW case, basis administered. Excludes connection capital.
Regulatory / stroke-of-pen
Mixed, stable. PLN is signing record data-centre PPAs (the 450 MW Batam deal), but connection queues could reach 24 months and grids outside Java lack hyperscale-grade reliability.
Execution risk
Connection friction Moderate, the risk the project or load actually energizes on time.
Ongoing monitor
Track this market's rating actions and the Global Power Index as a covenant-style monitor over the life of the exposure.
Monitoring plan
Covenant-style triggers to watch over the life of the exposure: a change in the PGIQ rating or outlook; a dated regulatory move (stroke-of-pen risk); a capacity-auction or cost-band shift; a forward firm-supply adequacy warning; and a rise in queue drop-out or connection friction. Track them on this market page and the Global Power Index, or as Analyst Desk alerts.
Sources: DayOne 450 MW Batam data-center power deal (w.media) · Indonesia data-center boom meets energy reality (PetroRaya) · PLN RUPTL 2025-2034 renewables plan (IEEFA) · Jakarta Post · Earth Journalism Network
This is a directional grid-risk screen, not a credit rating, and not investment, engineering or procurement advice.
The formatted, cited Grid Risk Annex export is an Analyst Desk feature.See the Grid Exposure Monitor →

Regulatory momentum

The regulatory and permitting environment is increasingly the binding variable for a new large load.
Mixed→ stable

Why: PLN is signing record data-centre PPAs (the 450 MW Batam deal), but connection queues could reach 24 months and grids outside Java lack hyperscale-grade reliability.

What would change the read: PLN grid reinforcement clearing the Batam queue and lifting outside-Java reliability.

For new supply: PLN is signing record data-centre PPAs, the clearest new-supply opening, though outside-Java reliability and Batam's water limit where it can land.

Beyond the grid: Water siting is the emerging constraint: Batam's data centres depend on rainfall-fed reservoirs, one planned cluster alone would need about 29 million litres a day, and existing plus planned sites could take roughly 8 percent of the island's water supply. Jakarta Post Earth Journalism Network

The five pillars behind the tier

A
A
C
M
C
The pillar signature: Access, Availability, Cost, Momentum, Carbon, taller is stronger. The same shape repeats across every market so peers compare at a glance.
Access30%45

Constrained access: Batam connection queues could reach 24 months without upgrades, and grids outside Java often lack hyperscale-grade reliability, though PLN is signing record data-center PPAs.

Availability25%42

Weak availability for hyperscale outside Java; the Batam grid needs reinforcement to keep pace with ramping sites.

Cost25%72

Cheap cost: PLN's regulated industrial tariff is low (around 1,000 rupiah per kWh), helped by coal and subsidies.

Momentum15%82

Very high momentum: a 450 MW DayOne power deal in Batam, Indonesia's largest, and a fast-growing Nongsa/Batam cluster.

Carbon5%22

High carbon: a coal-heavy grid, though the 2025-2034 plan targets 76% renewables in new capacity.

Default weights, which lean toward cost and access rather than carbon: Access 30 · Availability 25 · Cost 25 · Momentum 15 · Carbon 5. Momentum reflects the data-center build already underway, not just stated intentions.
Seller view: Read these the other way: momentum is your customer pipeline, cost is your revenue ceiling, and access is how hard it is to build and sell here, not only to connect.

Reliability overlay

Reliability adjustment: the five-pillar score of 54 is reduced to 50, a deduction of 4 points, reflecting the delivery-reliability and firm-supply risks flagged below. Reliability is reported as five separate layers, never as one combined label, because they answer different questions and a strong answer on one does not cover a gap in another: what has actually failed on the bulk system, what a forward assessment expects of firm supply, how the local network performs, what your contract actually promises, and what your site is designed to ride through. Any one of them can cap the tier.

Historical bulk-system performance: Minor flags found

The Batam grid needs reinforcement to keep pace with ramping data centers, with warnings that connection queues could reach 24 months without coordinated upgrades.

What this means: A large new load faces occasional exposure here. Monitor conditions and keep a contingency plan.

event-based · Indonesia data-center boom meets energy reality (PetroRaya)

Historical utility-territory delivery performance: No reliability flags found

Forward resource adequacy (assessed): Adequacy flagged

Grids outside Java often lack hyperscale-grade reliability, a risk to uptime for a large new load, though PLN's 2025-2034 plan adds significant capacity.

What this means: A large new load faces occasional exposure here. Monitor conditions and keep a contingency plan.

modelled · Indonesia data-center boom meets energy reality (PetroRaya)

Contractual service terms: not assessed

We have not compiled what firm service actually promises here: whether it is firm, non-firm or interruptible, the conditions under which you can be curtailed, the redundancy required of you, and the transfer time behind any N-1 commitment. Treat this as an open diligence item, not as an indication that service is firm.

Ask the utility for the tariff or service agreement terms before relying on firm supply.

Designed site resilience: not applicable at market level

Utility feeds, UPS, storage, on-site generation, islanding, black start and the residual energy you still expect to lose are properties of a specific site design, not of a market. This layer only exists once there is a site, and we never assert it for you.

Confidence: Med. Each input is labelled as measured, modelled, or drawn from a specific event, and is framed as a risk to a prospective large new load, not as a verdict on any utility or grid operator. Forward adequacy is an assessment of what is expected, not a measurement of what has happened; it is a forecast and is labelled as one.
Seller view: Tight forward capacity (firm supply promised for future years) is scarcity that firm generation and storage get paid for; an adequacy flag is a demand signal for new supply, not only a risk to a load.

Supply relief outlook

Will the power crunch ease before your load energizes? This nets the demand racing for capacity against the new supply likely to arrive and the old supply leaving. A cross-side read, using the same data a seller sees the other way.
Tightening
Demand pressure
Fast load growth competing for the same capacity.
Can new supply arrive
PLN is signing record data-centre PPAs, the clearest new-supply opening, though outside-Java reliability and Batam's water limit where it can land.
Future firm supply
Future firm supply: adequacy flagged.

What this means: The supply picture looks likely to tighten; a new load should lock firm supply early and expect competition for capacity.

Connection friction

How hard it is to connect a large new load here, and how long it takes. Part of the PowerGridIQ Connection Friction Feed. Labelled proxy; confidence Med.

Friction level

Moderate

Typical connection wait

1-2 years (Batam)

Source: Jakarta Post: Indonesia data-centre boom

This market's friction level, wait band and full story are free here. The precise typical wait in months, and every market ranked side by side, are the Analyst Desk.

PLN is signing record Batam data-centre PPAs; connection is workable there, weaker outside Java.

PLN is signing record data-centre PPAs led by Batam, where connection is workable, but queues can reach about 24 months and grids outside Java lack hyperscale-grade reliability. Water is the emerging siting constraint on Batam's rainfall-fed reservoirs rather than the wiring itself.

What builds the 24-month wait

6
6
6
6
Application & PLN study6 mo
Connection agreement6 mo
Network works6 mo
Construction & energization6 mo
Typical time to energization24 months
How the typical connection wait breaks down by stage. Stages overlap in practice and vary by project; the split is our estimate anchored to the operator process, and the total is the representative time to energization. Anchored to the operator process (Jakarta Post: Indonesia data-centre boom).

Data-center share of demand pressure: Rising. Sources: Jakarta Post: Indonesia data-centre boom · Earth Journalism Network: Batam water. The full cross-market connection dataset is available through the Connection Friction Feed.

Seller view: Connection difficulty is both your own time-to-revenue and a barrier limiting competing supply from reaching this market.

Realized cost band

What a large electricity user pays for power here on one declared case, 100 MW contracted demand, 95% load factor, HV service, per megawatt-hour. Not the wholesale price and not the sticker tariff: energy plus the grid, delivery and other charges that land on the bill. It is a range, because real contracts vary, and it is labelled by how it was built.

Recurring cost, delivered

$62 to $90 per MWh

Midpoint about $72 per MWh

How this band was built

administered

From 1 public fragment

What sets this band

There is no wholesale spot market here, so the band is not an energy-plus-network stack. It is set by the regulated tariff levels below.
$62
$90
$62$90
Large industrial tariff (I-4, high voltage)$62 /MWh
About 997 rupiah per kWh for high-voltage industry in 2025, kept low by coal and subsidies. Among the cheaper industrial rates in the region.
Business & medium-industry tariff (I-3 / B-2)$90 /MWh
About 1,115 to 1,445 rupiah per kWh; some data centres are billed on this higher class rather than the cheapest industrial rate.
These are the regulated tariff levels that define the band, not an additive cost stack. PLN is a state monopoly with no wholesale market; the government sets tariffs and adjusts them quarterly. Coal and subsidies keep industrial power cheap, though large hyperscale loads may negotiate separate PPAs. Anchored to published figures (Indonesia industrial electricity price (GlobalPetrolPrices)).

Where the cost lands

$72
Low $62Midpoint $72High $90
A band, not a single price: the cheaper end is a well-structured contract on favourable terms, the higher end a less optimised one. The midpoint is our best central read.
What is in the number: PLN's regulated industrial tariff, roughly 997 rupiah per kWh for high-voltage industry (about $62 per MWh), up to 1,115 to 1,445 rupiah for the business and medium-industry class. Cheap by regional standards, set by government and adjusted quarterly.

Indonesia's realized cost is PLN's regulated tariff, not a market price, and is among the cheaper in the region thanks to coal and subsidies. Large hyperscale loads increasingly sign dedicated PLN PPAs, as in Batam.

This market's band is free here; the ranked cross-market table with every market's precise midpoint is the Analyst Desk. See the ranked view.

Basis: triangulated from public sources, in US dollars per MWh delivered to a large high-load-factor load, excluding refundable taxes. Sources: Indonesia industrial electricity price (GlobalPetrolPrices) · PLN tariff adjustment (Sekretariat Kabinet).

Seller view: This delivered price is the level a competitive supply offer must beat, and the revenue ceiling a merchant plant works against here.

Data provenance and freshness

What we hold for this market, field by field. Each tier below is assigned from the evidence actually held for that field, with provenance. A low tier means we looked and it is thin; it is not a verdict on the market.
cost: M2connection: M1reliability: M2carbon: M2regulatory: M2local capacity: not_assessed
Against a Standardized Project Case, the binding field is cost, connection, reliability. That is what a standardized case would turn on here; a readiness result for your own project depends on your own requirements, siting and utility, which this market-level read does not know.
Read against other uses: Discovery and monitoring: M1 · Market comparison: M1 · Project Case with a carbon requirement: M1 · Conditional site diligence: insufficient.
Depth is not a rating strength, a confidence score or a feasibility conclusion. An aggregate is only ever shown for a named use case, and equals the lowest tier across that use case's required fields. Definitions v1.0. See the full coverage matrix.
How solid the data behind this rating is, on two separate axes plus recency. Source reliability is how measured the numbers are, as opposed to triangulated or modelled. Coverage is how many of the decision-relevant data dimensions (reliability, connection, and cost) are compiled for this market. The two are kept apart because they answer different questions: a market can have strong sources on the little that is covered, or broad coverage that still leans on models. Neither grades the rating itself. The rating is a cited opinion, graded separately and falsifiably by the public track record and baseline measurement plan.

Source reliability

Moderate

1 of 3 data layers measured

Coverage

Full

3 of 3 dimensions: reliability, connection, cost

Last reviewed

June 2026

per-layer vintages below

LayerMethodVintageFreshnessSource
PGIQ Rating opinionopinionJune 2026CurrentPGIQ methodology
Reliability reviewhistorical2025FreshIndonesia data-center boom meets energy reality (PetroRaya)
Connection frictionproxy2025/26FreshJakarta Post: Indonesia data-centre boom
Realized costmeasured2026FreshIndonesia industrial electricity price (GlobalPetrolPrices)

Freshness reflects each layer's refresh cadence: reliability annual to three-yearly, capacity-auction and queue yearly, tariffs every year or two. The full cross-market freshness dashboard is at /data-quality.

What this market can and cannot answer yet

No market-level read closes a project case on its own, and saying only that would waste the evidence we do hold. Below is what is established, what is open, and what to do next.

What is established

  • Recurring cost band $62 to $90 per MWh, midpoint $72, basis administered, against the 100 MW archetype
  • Historical bulk-system performance (event-based)
  • Forward resource adequacy (assessed)

What is open

  • Historical utility-territory delivery performance (would change the answer)
  • Contractual service terms (would change the answer)
  • Designed site resilience
  • local_capacity evidence

Who would actually serve you

Not compiled for this market. Identify the serving operator before relying on any figure here, because a market-level read is an average over territories.
Who runs the connection process: not yet compiled for this market. This is wayfinding rather than evidence, and its absence is a gap in our compilation, not a fact about the market.

Credible ranges today

  • Cost $62 to $90 per MWh, midpoint $72 (administered)

What could disqualify this market

  • Grid reliability and connection queues outside Java.
  • High carbon intensity.

Five questions for the utility or system operator

  1. What is the available capacity at the bulk supply point and substation that would serve this site, and what would a 100 MW request do to it?
  2. Is firm service available at 100 MW, and what curtailment rights would you retain over us once we are energised?
  3. What are the milestone dates from a complete application to full firm energisation, and which network upgrades would a 100 MW load trigger?
  4. What is the all-in delivered rate for 100 MW at a 95% load factor, including demand, network and rider charges, under the tariff that would actually apply?
  5. What is your own territory's SAIDI and SAIFI for the industrial class, on which major-event standard, and what redundancy serves the candidate substation?

Documents that would advance the case

  • The area or substation capacity study, and the current queue position list.
  • The applicable large-load tariff or the draft electric service agreement.
  • The interconnection or system impact study, and a specimen connection offer.
  • The current tariff sheet with all riders, and any large-load contract terms.
  • The utility's own reliability filing and the substation single-line diagram.

Outlook drivers

↑ Upgrade triggers

  • PLN grid reinforcement and the RUPTL renewables build ease reliability and carbon.
  • More record data-center PPAs convert the Batam pipeline.

↓ Downgrade triggers

  • Connection queues and outside-Java reliability stall hyperscale ramps.
  • Coal dependence keeps carbon high.

Scheduled to change

Dated, already-announced events that will affect a large load sited here, in date order. These are published facts with sources, not our forecasts, and they matter most when your energization date is years out.
2026 to 2027
DayOne's roughly 450 MW Batam campus energizes in phases
Indonesia's largest data-center power deal; a live test of Batam grid reinforcement and the connection queue.
w.media

Key risks

Peer comparison

Trades like
Thailand and Malaysia (cheap, fast-growing Southeast Asian grids)
Ahead
on cost and momentum
Behind
on reliability and carbon

Evidence behind this rating

The real-world events that test our Tier 3 call for Indonesia: 2 support it. Each is dated and cited, so you can check the rating against what is actually happening on the ground.

DayOne signs Indonesia's largest power deal, about 450 MW, for a Batam data center ✓ Supports the rating
2026MomentumMateriality: high

DayOne signed a roughly 450 MW (511 MVA) grid-power deal with PT PLN Batam, Indonesia's largest, with phased delivery from 2026 to 2027, part of a Batam-Nongsa cluster with two sites live, three under construction and eight more announced. Momentum on this scale confirms Indonesia as a rising large-load market.

Source: w.media ↗
Analysts warn Batam power-connection queues could reach 24 months without grid upgrades ✓ Supports the rating
2025AvailabilityMateriality: med

Rapid hyperscale growth is straining Batam's generation and transmission, with warnings that connection-queue delays could reach 24 months without coordinated upgrades, and grids outside Java often lack hyperscale-grade reliability. That is the availability and access risk behind the Tier 3 call.

Source: PetroRaya Resources ↗
Cited, dated developments tagged to the pillar they bear on, and whether they support or challenge the current tier. A material item flags the market for analyst review and may drive a rating action.
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Rating history

June 2026
New ratingNew rating: Tier 3 Workable assigned.
🔒 The full time series behind Indonesia, how its score, recurring cost, and interconnection queue (the line to connect to the grid) have moved month by month, is part of the Analyst Desk. The rating actions above are always free.
Every rating action is dated and explained, and the log is only ever added to, never edited. Reviews happen on a regular schedule and whenever a significant event occurs. "Affirmed" means we reviewed a development and the tier held; "Under review" means a significant item is being assessed and the rating could change.

Score history

How Indonesia's reliability-adjusted score and tier have moved, month by month. Part of your Analyst Desk.

Loading history…

How does Indonesia compare to the other 78 markets?

This page is our full read on Indonesia alone, and it is free. To decide where a large load should actually go, you need every market side by side, ranked on recurring cost and time-to-connect, with the history and alerts when your shortlist moves. That is the Analyst Desk.

With your Analyst Desk, compare Indonesia against every market side by side, ranked on recurring cost and time-to-connect, with the full history and shortlist alerts.

+ Add to your shortlist Recurring cost, ranked Connection friction, ranked Get the Analyst Desk →
Cite as: PowerGridIQ Rating, "Indonesia" (Tier 3 Workable), as of June 2026. A proprietary, directional screen for siting a large electricity load; not a connection guarantee, and not investment, engineering or procurement advice. Sources and methodology at powergridiq.com/methodology. © PowerGridIQ.