- Authorities identified 13,827 sites involved in illegal power use for cryptocurrency mining.
- TNB seized bitcoin-mining equipment during joint inspections.
- Smart meters are being installed to detect suspicious energy consumption in real time.
Malaysia is stepping up its response to rising energy losses caused by cryptocurrency mining after new figures revealed widespread electricity theft across the country.
National utility Tenaga Nasional Bhd (TNB) reported more than $1 billion in losses from illegal power use between 2020 and August this year.
The scale of the theft has prompted authorities to strengthen monitoring tools, expand inspections and build new data systems, as bitcoin-mining operations continue to strain the national grid.
Officials now treat the issue as an urgent energy security concern that requires sustained oversight.
Rising incidents of electricity theft
The Ministry of Energy and Water Transformation reported that 13,827 premises used electricity illegally for crypto mining during the period, according to a written parliamentary reply released on Tuesday.
Malaysia has no dedicated laws specifically addressing crypto-mining, but the activity becomes illegal when meters are tampered with or bypassed.
Such actions are prosecutable under offences set out in the Electricity Supply Act.
The ministry confirmed these illegal activities caused financial losses totaling 4.6 billion ringgit, roughly equivalent to $1.11 billion.
Mining setups require continuous, intensive power consumption and are often concealed to avoid detection.
As a result, unauthorised operations can rapidly drain the grid’s capacity.
Coordinated enforcement operations
TNB has stepped up joint inspections with multiple enforcement agencies to address the rising cases.
Police, the communications regulator, anti-corruption authorities and other agencies have participated in these operations.
Their coordinated actions have resulted in seizures of bitcoin-mining machines at many identified locations.
With illegal mining continuing to grow, TNB has moved toward systems that support preventative oversight.
The utility has compiled a database containing detailed information on owners and tenants of properties suspected of electricity theft tied to bitcoin mining.
The ministry said the database helps identify patterns, profile high-risk sites and prioritise future inspections across different states.
Technology-driven monitoring measures
Malaysia is also relying on real-time energy monitoring to curb losses.
Smart meters are being installed at distribution substations to track consumption patterns and spot tampering more quickly.
These meters help detect sudden spikes or irregular usage that often indicate hidden mining activity.
Real-time alerts enable TNB to respond faster before theft spreads or expands.
The country’s competitive electricity prices make it attractive to mining operations, increasing pressure on the grid and complicating enforcement.
Because mining is energy-intensive and not directly regulated, authorities are using existing energy laws alongside surveillance technologies to combat illegal consumption.
Strengthening oversight across the network
Rather than introduce specific mining regulations, Malaysia has opted to reinforce enforcement.
Authorities are relying on cross-agency cooperation, improved inspection strategies and comprehensive data systems to protect the power network.
TNB continues to refine its approach, since illegal miners frequently relocate after raids, requiring continuous monitoring and timely intelligence.