- Authorities have identified 13,827 premises involved in illegal electricity consumption for cryptocurrency mining.
- Tenaga Nasional Bhd (TNB) seized bitcoin mining machines during joint inspections.
- Smart meters have been installed to detect suspicious power consumption in real time.
Malaysia is stepping up its response to rising energy losses linked to cryptocurrency mining, as new data reveal widespread electricity theft across the country.
National utility Tenaga Nasional Bhd reported more than $1 billion in losses from illegal power use between 2020 and August this year.
The scale of the theft has pushed authorities to strengthen monitoring tools, expand inspections and build new data systems while bitcoin mining operations continue to strain the national grid.
Officials now treat the situation as an urgent energy security concern that requires ongoing oversight.
Rising incidents of electricity theft
The Ministry of Energy and Water Transformation stated that 13,827 premises were found to be using electricity illegally for cryptocurrency mining during the period, according to a written parliamentary reply released Tuesday.
Malaysia does not have specific regulations governing cryptocurrency mining, but the activity becomes illegal when meters are tampered with or bypassed.
Such actions constitute offences under the Electricity Supply Act.
The ministry confirmed that these illegal activities caused financial losses of 4.6 billion ringgit, equivalent to approximately $1.11 billion.
Mining facilities require continuous, high levels of power and are often concealed to avoid detection.
This has allowed unauthorized operations to drain the grid at a rapid pace.
Coordinated enforcement operations
TNB has conducted joint inspections with multiple regulatory bodies in response to the increase in cases.
Police, the communications regulator, the anti-corruption agency and other authorities have participated in these operations.
Their coordinated actions have led to the seizure of bitcoin mining machines at many of the identified premises.
With illegal mining activity continuing to rise, TNB has shifted toward systems that support proactive oversight.
The company has created a database containing full records of owners and tenants of properties suspected of being involved in electricity theft linked to bitcoin mining.
The ministry said the database helps identify patterns, profile high-risk locations and support future inspections across states.
Technology-driven monitoring measures
Malaysia is also relying on real-time energy monitoring to reduce losses.
Smart meters are being installed at distribution substations to track consumption patterns and detect tampering more quickly.
These meters help identify sudden spikes or irregular behavior that often indicate hidden mining operations.
Real-time alerts enable TNB to respond faster before thefts spread or expand.
Competitive electricity prices in the country make it attractive to mining operators, increasing pressure on the grid and complicating enforcement efforts.
Because mining is energy-intensive and not directly regulated, authorities are using existing energy laws backed by surveillance technologies to curb illegal consumption.
Strengthening oversight across the network
Malaysia has chosen to tighten enforcement rather than introduce dedicated mining regulations.
Authorities rely on interagency cooperation, improved inspection strategies and expanded data systems to protect the public utility network.
TNB continues to refine its approach, as illegal mining operations frequently relocate after raids, requiring constant monitoring and up-to-date intelligence.