When you signed your supply contract, you compared prices, reviewed the spread, and maybe negotiated the indexation formula. But there is one question almost no one asks before signing: what happens to my plant if my Qualified Supplier goes bankrupt? It is an uncomfortable question because it forces you to imagine that the provider who offered you the best number could disappear. And in a young, competitive market like Mexico's, where margins are thin, that is not a remote scenario.
The good news is that your Qualified Supplier's bankruptcy does not leave you in the dark: the Wholesale Electricity Market (MEM) is designed so electricity never stops flowing to your load center. The bad news is that the real risk is not physical, it is commercial and contractual. Your prepaid energy, your deposited guarantees, and the price you ultimately pay for power are all on the line. This article explains exactly what happens, how the supplier of last resort protects you, and above all how to shield yourself before you ever sign.
What happens if your Qualified Supplier goes bankrupt?
You are not left in the dark. Electricity keeps reaching your plant because CENACE operates the physical system and the supplier of last resort backs you up while you secure a new provider. The real risk is commercial: the energy you paid for in advance, the guarantees you deposited, and the temporary backup price, which is usually more expensive than your contract.
It helps to separate two planes that people confuse. The physical plane —the electrons that drive your machines— is guaranteed by the system's infrastructure and does not depend on your supplier's financial health. The commercial plane —who invoices you, at what price, and what happens to the money already on the table— depends entirely on your contract and the counterparty's solvency. The difference between a buyer who understands this and one who does not is the difference between an orderly transition and a six-figure loss.
That is why a supplier's insolvency is, first and foremost, a question of energy risk management: it is prevented at the negotiating table, not solved in a crisis.
Do you lose electricity if your supplier becomes insolvent?
No. Supply continuity is guaranteed by the design of the MEM. If your Qualified Supplier stops operating, the figure of the Supplier of Last Resort exists, taking over your supply temporarily so the energy is not interrupted while you migrate to another contract.
Electricity supply is a service the law treats as being in the public interest, and the system is built so it is not cut off over a commercial problem between private parties. The market operator, CENACE, dispatches the energy and manages the grid regardless of who invoices you. When a market participant fails, there is a backup mechanism so your load center is not left without a representative before the market overnight.
That backup figure is the Supplier of Last Resort. Its function is precisely that: to temporarily take on users who are left without a supplier in order to avoid interruption, while the user qualifies and contracts a new supplier. It is neither a permanent solution nor designed to be cheap; it is a safety net.
Here is the nuance that matters for your wallet: the backup keeps you powered, but its price is usually referenced to the short-term market or to a backup tariff, not to the price you had negotiated. In periods of high MEM prices, that backup can turn out considerably more expensive than your original contract. The protection is real, but it has a cost, and that is why you do not want to stay there any longer than strictly necessary.
Regulation of these figures now falls to the National Energy Commission (CNE), which replaced the Energy Regulatory Commission (CRE) in the 2025 reform and assumed its functions. The specific rules for the supplier of last resort and its prices are published in the current regulations of the CNE and CENACE.
What happens to your contract, your guarantees, and your prepaid energy?
Here is the real risk. Your bilateral contract enters a process of termination or assignment, and everything you paid in advance or deposited as a guarantee becomes a credit you must claim within the insolvency process, where you compete with other creditors. Recovering that money is neither automatic nor immediate.
When a supplier enters bankruptcy proceedings (concurso mercantil) or goes bust, its contracts and assets become subject to the legal process. For you, the buyer, this translates into three distinct fronts, each with its own level of risk.
The contract. Your supply contract may be terminated or, in some cases, assigned to another supplier as part of the process. Do not assume the terms are preserved: an assignment can come with changes, and a termination forces you to contract again, possibly at market prices different from the ones you had locked in. This is where the fine print you reviewed —or did not— at signing defines your position. If your contract had well-negotiated exit clauses, maneuvering is far easier.
The financial guarantees. If you deposited letters of credit, surety bonds, or a security deposit in favor of the supplier, that capital is frozen within the process. Depending on how the guarantee was structured —in whose favor, with what priority— you may recover it in full, in part, or late. A poorly structured guarantee is money you watch turn into a legal proceeding lasting months.
The prepaid energy. If your scheme involved advance payments or credit balances, those amounts become a credit you claim within the bankruptcy. In the line of creditors, an energy buyer is rarely in first position. Recovery is uncertain and, when it happens, is usually for a fraction of the amount.
The following table summarizes where you stand on each front.
| What is at stake | What happens in the bankruptcy | Your real exposure |
|---|---|---|
| Physical supply | CENACE and the backup keep it active | Low: the lights do not go out |
| Bilateral contract | Terminated or assigned; terms may change | Medium: risk of recontracting at a worse price |
| Deposited guarantees | Frozen in the legal process | Medium-high: depends on the structure |
| Prepaid energy or balances | Become a credit in the bankruptcy | High: uncertain and partial recovery |
| Price during the transition | You migrate to the backup, referenced to market | Medium: usually more expensive than your contract |
The pattern is clear: the more money you advanced to the supplier, the greater your exposure. That is why your contract's payment and guarantee structure is not an administrative detail; it is your first line of defense.
Warning signs that your supplier is in trouble
The best defense against a bankruptcy is not to wait for the official announcement. There are early signals —operational, financial, and market-related— that usually appear months before the collapse. Spotting them in time gives you room to migrate in an orderly way rather than reactively.
A supplier in difficulty rarely gives notice. But its behavior changes, and if you know what to watch for, you can get ahead of it. These are the red flags we monitor in a supply relationship.
| Red flag | What it could indicate | What to do |
|---|---|---|
| Recurring billing errors | Internal operating or cash problems | Document and demand corrections in writing |
| Delays or disputes in settlements | Cash flow stress | Review your prepaid exposure immediately |
| High turnover of key personnel | Internal instability at the supplier | Identify alternate contacts and backups |
| Pressure to prepay or expand guarantees | Urgent need for liquidity | Do not expand exposure; request a formal explanation |
| Unilateral changes to terms | Attempt to improve its margin under pressure | Review the contract and assess exit grounds |
| News of litigation or investor exits | Financial deterioration of the company | Activate the contingency plan and compare offers |
| New opacity about its financial backing | Concealment of a solvency problem | Request updated financial statements |
No single signal in isolation is a sentence. But two or three together are reason enough to have an exit route ready. Keeping an up-to-date comparison of Qualified Suppliers 2026 on hand turns an emergency migration into a planned switch.
How to shield yourself before signing
You shield yourself with three levers: serious due diligence on the supplier, a payment and guarantee structure that limits your exposure, and exit clauses that let you migrate without being chained down. Protection is designed at signing, not when the crisis breaks.
The time to protect yourself against a bankruptcy is not after it has happened, but before you put your signature down. A buyer who evaluates the counterparty's solvency with the same rigor they apply to price is playing a different game. These are the defenses, in order of importance.
Due diligence on the supplier. The lowest price on the market sometimes comes from whoever is willing to operate on unsustainable margins. Before signing, assess the supplier's financial strength, track record, corporate backing, and client portfolio. A provider with a financial backbone and years of operation is structurally less risky than a new one buying market share by giving away price.
Payment and guarantee structure. Minimize what you advance. Prefer pay-against-invoiced-consumption schemes over prepayment schemes. If you must provide guarantees, structure them so they are recoverable and proportional to the real risk, not oversized. Every peso you did not advance is a peso you do not have to claim in a bankruptcy.
Exit and portability clauses. Negotiate grounds for termination without penalty in the event of service deterioration or breach, and make sure you can migrate to another supplier with reasonable notice. The ease of switching suppliers without outages is your mobility insurance: if you can exit cleanly, your provider's bankruptcy is an inconvenience, not a catastrophe.
Use this checklist before signing any supply contract.
| Checkpoint | Key question | Why it matters |
|---|---|---|
| Supplier solvency | Does it have sound financial statements and corporate backing? | A fragile provider is the first risk factor |
| Track record and portfolio | How many years has it operated and whom does it supply? | Experience and a client base provide stability |
| Payment structure | Pay against consumption or prepayment? | Prepayment multiplies your exposure in a bankruptcy |
| Guarantees | Are they recoverable and proportional to the risk? | A poorly structured guarantee gets trapped |
| Exit grounds | Can I exit without penalty in case of breach? | Without a clean exit, you stay chained to the provider |
| Portability | Can I migrate to another supplier with reasonable notice? | Mobility neutralizes insolvency risk |
| Contract assignment | What happens to my terms if the contract is assigned? | An assignment can change the rules of the game on you |
If you compare these defenses with the traps we document in the 8 dangerous clauses in a supply contract, you will see that protection against bankruptcy and good contract negotiation are, in fact, the same job.
How Enerlogix protects your supply
At Enerlogix we are not a supplier and we do not charge a spread on your energy. That leaves us free to evaluate your potential providers with independent judgment: we measure their solvency, their track record, and their guarantee structure before you sign, and we model your real exposure in each scenario. When a low price hides a high counterparty risk, we tell you with numbers, not hunches.
That analysis is part of the Plan 360 Management: measure first, decide with data, and execute only what holds up. We review the payment structure so you do not advance more than necessary, we negotiate exit clauses that give you mobility, and if things deteriorate, we accompany you in an orderly migration to another supplier. The difference between buying energy through a Qualified Supplier and doing it safely lies in who has your back at the table.
That continuous support is what prevents surprises: a company with operations in three states and 45,000 MWh per year sustains, thanks to the weekly evaluation of nominations we have run since 2020, MX$24 million in savings in 2024 by mitigating the deviations that would otherwise be additional charges (see the Multipunto Noreste case).
If you are about to contract or renew and want to understand your real exposure, learn about the energy procurement service and review the pillar guide on buying energy through a Qualified Supplier. Request a free evaluation and we will review your contract and your provider with your real numbers before you sign.
Frequently asked questions
No. Supply continuity is guaranteed by the design of the Wholesale Electricity Market. CENACE operates the physical system regardless of who invoices you, and the figure of the Supplier of Last Resort exists to back you up temporarily while you contract a new provider. The real risk is not being left in the dark, but a commercial one: your prepaid energy, your guarantees, and the temporary backup price, which is usually more expensive than your original contract.
It is the market figure that temporarily takes on the supply of users who are left without a Qualified Supplier, to prevent electricity from being interrupted. Its function is to serve as a safety net while the user qualifies and contracts a new supplier. It is not meant to be permanent or cheap: its price is usually referenced to the short-term market or to a backup tariff, so in periods of high prices it can turn out more expensive than the contract you had. The CNE regulates this figure.
It becomes a credit you must claim within the bankruptcy proceeding (concurso mercantil), where you compete with other creditors. Recovery is neither automatic nor immediate, and an energy buyer is rarely in first position in the line of creditors, so they usually recover only a fraction. The same applies to any guarantees you deposited: they are frozen in the legal process. That is why it is advisable to minimize what you advance and prefer pay-against-invoiced-consumption.
With three levers. First, serious due diligence on the supplier: assess its financial strength, track record, and corporate backing, because the lowest price sometimes comes from whoever operates on unsustainable margins. Second, a payment and guarantee structure that minimizes what you advance, preferring pay against consumption over prepayment. Third, exit and portability clauses that let you migrate to another supplier without penalty in case of breach. Protection is designed at signing, not in the crisis.
The most common red flags are recurring billing errors, delays or disputes in settlements, high turnover of key personnel, pressure to prepay or expand guarantees, unilateral changes to contract terms, news of litigation or investor exits, and new opacity about its financial backing. No single signal in isolation is a sentence, but two or three together are reason enough to have an exit route ready and compare other offers in the market.
