Surabaya Crypto Mining | Electricity, Rules & Hardware
Surabaya sits on the same Java-Bali grid as Jakarta, but East Java's power leans hard on one source: the Paiton coal complex supplied roughly 60% of the region's generation as of 2024, a concentration Jakarta's wider grid draw doesn't have. Surabaya is also Indonesia's second-largest city and East Java's industrial anchor - PT Surabaya Industrial Estate Rungkut (SIER) alone runs ~267 tenant companies near Tanjung Perak port. The climate is the practical issue for buyers: at 31-35°C ambient with ~80% humidity, an air-cooled unit is running close to its rated intake ceiling, so hydro or immersion cooling and forced ventilation are worth specifying rather than defaulting to air.
$0.060 - $0.090/kWh
Published power range
East Java
Region
Legal (mining unregulated)
Mining status
2.1%
Global bitcoin hashrate (est.)
Power, climate and rules at a glance
| Electricity | $0.060 - $0.090/kWh |
|---|---|
| Energy mix | Paiton coal complex, ~60% of East Java's generation, Java-Bali grid |
| Cooling constraint | tropical, 31-35°C with ~80% humidity, hottest Sep-Oct |
| Legal status | Crypto is regulated as a tradable commodity under OJK oversight (transferred from Bappebti in January 2025). Owning and operating mining hardware isn't prohibited, but unlike trading it has no dedicated licensing framework yet - it sits in a legal grey area, with academic and industry calls for Indonesia to write dedicated mining rules. Grid capacity varies substantially between islands, so siting decisions are dominated by whether an industrial connection exists at all. |
| Relevant algorithms | SHA256 |
Sources: spark.money Bitcoin Mining Profitability by Country; oneminers 2026 electricity survey. Indicative published ranges, not a quote for your tariff. Hashrate share: Hashrate Index - Top 10 Bitcoin Mining Countries of 2026 (Bitcoin mining hashrate share, estimated, 2026.). This is informational, not legal or financial advice.
Hardware suited to Surabaya
Other mining locations in Indonesia
All mining markets
Surabaya mining FAQ
Will a 220V-rated miner run on Surabaya's power?+
Yes. Indonesia's standard household/light-industrial supply is 220-230V, 50Hz (SNI 04-3892.1.1-2003), within the 200-240V input range most ASIC power supplies are rated for - check the specific unit's PSU label to confirm, but a voltage converter generally isn't needed.
Does Surabaya's climate need hydro or immersion cooling?+
It's the more defensible choice. Surabaya runs 31-35°C ambient with around 80% humidity most of the year, which puts an air-cooled unit near its rated intake-temperature ceiling. Hydro or immersion cooling gives more thermal headroom and is worth the extra setup cost if you're running the unit continuously.
What import duty applies to a miner shipped to Surabaya?+
Indonesia's consignment-shipment rule (PMK 199/2019) charges 7.5% duty on FOB value between USD 3-1,500, or the HS-code MFN tariff above that, plus 11% VAT either way. The exact HS classification for ASIC miners isn't published by Bea Cukai, so confirm the rate with your customs broker before ordering rather than assuming a fixed number.
What decides where mining is viable in Indonesia?+
Whether an industrial power connection exists at your chosen site. Generation is coal- and geothermal-heavy and concentrated on different islands than demand, and transmission is the bottleneck. A cheap tariff in a region with no spare connection capacity is not usable.
Buying hardware for Surabaya?
We ship from Kwai Chung, Hong Kong and can advise on the right cooling specification for your climate and power rate.