Everything about a mining operation's viability sits in its power contract, and those contracts are considerably more complex than a headline rate.
The rate structure
Energy charges, capacity charges, transmission and distribution charges, and taxes.
Which means the all-in cost frequently exceeds the quoted energy rate substantially.
Comparing operations on energy rate alone is misleading for exactly this reason.
Interruptible supply
Contracts where the utility can require the load to shut down.
Which is priced considerably below firm supply.
Mining suits this because shutting down is instantaneous and carries no process damage, unlike most industrial loads.
Demand response
Being paid to reduce consumption when the grid is stressed.
Which has become a meaningful revenue line in some markets.
Participation requires meeting response time and verification requirements set by the grid operator.
Behind-the-meter arrangements
Connecting directly to a generator rather than through the grid.
Which avoids transmission charges and ties the operation to that generator's availability.
Stranded generation with limited grid access is a common target for such arrangements.
Flared gas
Using gas that would otherwise be burned off at production sites.
Which has genuine emissions arguments and depends on the counterfactual being actual flaring.
The economics depend on gas that has no other market, which is a specific and limited circumstance.
Grid connection queues
Obtaining a large connection takes years in most developed markets.
Which is a substantial barrier and has become the binding constraint in several regions.
Acquiring sites with existing connections is frequently faster than building new ones.
Regulatory risk
Several jurisdictions have imposed moratoriums, higher tariffs or restrictions.
Which can invalidate a site's economics after capital has been committed.
Diversifying across jurisdictions is the standard response for larger operators.
What determines survival
All-in power cost, hardware efficiency and the willingness to curtail when margins invert.
This is description of an industry rather than investment advice.
Hosting versus self-operation
Placing hardware in a third-party facility transfers power procurement to the host.
Which simplifies operations and removes control over the largest cost.
Hosting contracts with power price pass-through clauses have produced substantial disputes when rates moved.
Site selection
Power availability, climate, land cost, connectivity and regulatory environment.
Which is the same analysis a data centre developer performs.
Cooler climates reduce cooling load, which is a meaningful operational saving.
Cooling approaches
Air cooling, immersion and direct liquid cooling.
Which trade capital cost against density, efficiency and hardware longevity.
Immersion allows higher density and adds complexity and upfront expenditure.
Capital structure
Equipment financing, site development and working capital.
Which determines resilience through a downturn more than operating efficiency does.
Highly leveraged operations have failed in cycles where unleveraged competitors survived.
Reporting
Listed operators publish hash rate, power cost, efficiency and holdings monthly.
Which makes the industry's economics unusually transparent for anyone willing to read filings.
Grid operator perspective
A large, flexible, price-responsive load has genuine value to a grid balancing intermittent generation.
Which is the strongest argument the industry makes and depends entirely on actually being flexible.
Operations that run regardless of grid conditions provide none of that benefit.
Local opposition
Noise from cooling equipment has generated substantial community objection in several locations.
Which has produced planning restrictions and, in some cases, forced relocation.
Noise mitigation is a real capital cost that early operations frequently ignored.
Water use
Some cooling approaches consume water, which is contentious in constrained regions.
Which has become a permitting consideration.
Closed-loop and air cooling avoid this at a cost in efficiency.
Tax treatment
Mined assets are generally taxable as income at receipt in most jurisdictions.
Which creates liability regardless of whether anything is sold.
Operations that did not plan for this have faced difficulty in falling markets.
Assessing an operation
All-in power cost, fleet efficiency, hosting terms, leverage and hedging position.
Diversification into compute
Several operators have repurposed sites and connections for general computing workloads.
Which uses the same infrastructure advantages of power access and cooling.
Margins in that market differ substantially and the underlying asset — a large connected site — is the same.
What the business actually is
Buying electricity, converting it to computation, and selling the output of a fixed reward schedule.
Which makes it a commodity conversion business with all the cyclicality that implies.
Reading the sector
The publicly listed operators file detailed quarterly reports covering fleet efficiency, realised power cost, hosting arrangements and hedging positions.
Which makes this one of the better-documented parts of the industry for anyone wanting to understand its economics from primary sources rather than from commentary.
The filings also record what happened during downturns, which is the part commentary tends to skip.
The competitive reality
Difficulty rises with total network hash rate, so an operator's revenue depends on decisions made by every competitor.
Which is unusual among industries and produces the boom-and-distress cycle the sector is known for.