Some students are taking advantage of free electricity in their dorms to mine cryptocurrencies, resulting in higher profit margins than most miners
Karen Hao / Quartz : Tweets: @amitranjan and @pakman Tweets: Amit Ranjan / @amitranjan : Electricity & internet being part of the tuition, the mining rigs is like a 2000 watt always-on room heater! -> “The secret lives of students who mine cryptocurrency in their dorm rooms” http://qz.com/... David Pakman / @pakman : What's interesting to me about this is the time lag between when this was a “new thing” and when it received coverage in the media. Dorm room mining has been rampant since 2014. http://qz.com/...
Context & Ripple Effects
Dorm-room mining is arbitrage on bundled costs: where electricity and internet come as part of tuition, a rig is effectively a free-input machine, which is why student miners clear better margins than commercial operations paying market rates for power. As commentator David Pakman notes in the coverage, the practice had been rampant since 2014 before media caught up — the lag itself signals how invisible small-scale power arbitrage is inside institutional billing.
The same playbook shows up at industrial scale later in the arc: upstate New York's cheap power drew both Bitcoin speculators and a restarted fossil-fuel plant, while China's crackdown eventually reached the institutional version of the dorm room.
First-order effects
- Universities are silently subsidizing mining: an always-on rig draws roughly constant high wattage year-round, so housing departments eat the marginal energy cost while students capture the coin.
- Student miners gain a structural cost advantage over commercial miners whose profitability hinges on negotiated industrial electricity rates.
Second-order effects
- Institutions get forced into policing their own infrastructure — China's later crackdown explicitly extended to colleges and research institutions, and inspectors found miners siphoning hundreds of thousands of kWh daily from public facilities, showing how dormant subsidy becomes active theft once scale grows.
- Cheap-power regions become mining destinations, pressuring local grids and utilities that priced power for legacy industry, not speculative compute.
Third-order effects
- Mining capital migrates wherever electricity is mispriced — dorms, deindustrialized towns, stranded power plants — until regulators reprice it, as New York's proposed moratorium attempt shows.
- When mining economics turn, the installed base of rigs doesn't vanish but seeks new workloads, with some operators attempting to repurpose rigs for AI training — a conversion that is neither easy nor cheap, per the reporting.
The trend: Crypto mining persistently arbitrages underpriced institutional and regional electricity, and each wave of migration ends with institutions and governments repricing or policing power.