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Mining Industry

Energy Efficiency in Mining

Mining with 100,000+ MWh a year: a Chihuahua case where a mine secured MX$37M in savings in one year via neutral tender and independent audit.

EE

Equipo Enerlogix

April 30, 2026 · 6 min read

In mining, electricity is far more than a service: it is one of the most critical components of the operating cost structure (OPEX). With consumption exceeding 100,000 MWh per year, every mine comfortably surpasses the threshold to operate as a Qualified User in the MEM, and any swing in the Wholesale Electricity Market (MEM) or a poor contractual negotiation can seriously compromise a project's viability.

As we move toward 2026, with the consolidation of the National Energy Commission (CNE) and increasingly strict state energy planning after the 2025 Reform, foreign and domestic mining companies in Mexico need more than a supplier: they need an independent, neutral advisor that guarantees budget certainty.

The Challenge of Scale: The Chihuahua Case

Recently, Enerlogix Solutions led the energy strategy for a major foreign mining company with operations in Chihuahua. The challenge was substantial: optimizing a load center with annual consumption of 130,000 MWh.

The Enerlogix Strategy

  • Competitive, neutral tender: we evaluated more than a dozen Qualified Suppliers under criteria of financial solvency and operational credibility, ensuring the final offer was genuinely the best in the market and not the most convenient.
  • Tailor-made contract structure: we negotiated terms that delivered cost stability, protecting the client from the volatility spikes of Local Marginal Prices (LMP).
  • Proactive oversight: our work did not end at signing. We implemented a continuous audit model to verify that every billed item matched exactly what had been agreed.

The Striking Result

In just one year of operation (2024), the mining company achieved savings exceeding MX$37,000,000. Today, its Chihuahua operation is not only more profitable, but its energy costs are predictable and aligned with its global financial targets. Review the full Chihuahua mining case.

Audit and Neutrality: The Necessary "Second Opinion"

In large-scale mining operations, leaving energy management solely in the supplier's hands is a governance risk. As an independent advisor, Enerlogix acts as an external risk committee that ensures:

  • Total transparency: we audit charges for capacity, energy, and Clean Energy Certificates (CELs) line by line.
  • Risk management (hedging): we determine whether the mine's profile benefits more from products indexed to natural gas or from fixed-price energy blocks, two of the MEM savings sources worth combining with judgment.
  • Grid Code compliance: we protect the operation from multimillion-peso fines for variations in power quality, which are critical in grinding and crushing processes with heavy inductive loads.

Energy as a Strategic Asset in 2026

With the current Energy Reform in Mexico, the electrical infrastructure faces obsolescence challenges. For mining, which often operates in remote areas with more vulnerable transmission connections, supply certainty is paramount.

Our Utility Data Management (UDM) service allows mining finance departments to turn complex data into strategic control dashboards. We do not let the energy budget become a "black box"; we give you the clarity needed so that every megawatt-hour works in favor of the operation's profitability.

Conclusion

Modern mining in Mexico demands partners who understand the complexity of the MEM and the rigor of international audit standards. The MX$37 million in savings in Chihuahua proves that, with the right advice, energy spend can be transformed from an uncertain liability into a sustainable competitive advantage.

Is your mining operation paying a fair price for its energy? Let Enerlogix run a sensitivity analysis of your current contract, within our service for Qualified Users, and discover the savings potential your load center can reach in 2026. Contact us.

Frequently asked questions

In the case documented in Chihuahua, a mine with a 130,000 MWh annual load center achieved savings exceeding MX$37,000,000 in just one year of operation (2024). The result was achieved through a competitive, neutral tender, a tailor-made contract, and continuous audit of every billed item.

Mining records consumption exceeding 100,000 MWh per year, which makes electricity one of the most critical components of OPEX. At that volume, any swing in the Wholesale Electricity Market or a poor contractual negotiation can seriously compromise the project's viability.

Because it protects the operation from multimillion-peso fines for variations in power quality. These variations are especially critical in grinding and crushing processes, which run with heavy inductive loads. As an independent advisor, Enerlogix audits compliance as part of its role as an external risk committee.

Through a competitive, neutral tender. In the Chihuahua case, more than a dozen Qualified Suppliers were evaluated under criteria of financial solvency and operational credibility, ensuring the final offer was the best in the market and not the most convenient. This also avoids the risk of returning to higher CFE tariffs due to a supplier default.

It is the scenario in which your Qualified Supplier defaults or enters financial distress and your load center is forcibly returned to CFE supply, normally under much higher tariffs. For a high-consumption mine, that jump can cost millions. That is why Enerlogix evaluates suppliers' financial solvency before contracting, so the choice does not depend solely on the price offered but on their real capacity to deliver.

Because capacity usually represents a significant share of the total energy cost in a mining operation. An error in measuring peak demand, or a misapplied charge, can inflate the bill by thousands of dollars unnecessarily month after month. The continuous audit reviews each charge for capacity, energy, and Clean Energy Certificates line by line to verify it matches exactly what was agreed in the contract.

Utility Data Management offers total visibility over energy spend, so the budget stops being a black box. It allows reconciling invoices, validating that every billed item matches what was agreed, and building realistic annual budgets that eliminate surprises at the close of the fiscal year. For mining finance departments, it turns complex MEM data into strategic control dashboards for decision-making.

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