ARENH: France's energy scandal
Key figures · DfinA fact-check (October 2026)
- NOME law: Law no. 2010-1488 of 7 December 2010; ARENH in force from 1 July 2011 to 31 December 2025.
- Price: €40/MWh in 2011, then €42/MWh from 1 January 2012, never revised in fourteen years.
- Ceiling: 100 TWh a year, roughly a quarter of EDF's nuclear output.
- ARENH+ (2022): 20 extra TWh at €46.2/MWh; cost estimated by EDF at €8.3 bn; EDF's 2022 net result: −€17.9 bn.
- After 2025: State-EDF agreement of November 2023, reference price of about €70/MWh, 50 % skimming above €78-80/MWh and 90 % above €110/MWh, returned to consumers.
- Business failures: about 57,700 in 2023 (Banque de France), above the 2009 level.
Sources: Légifrance, CRE, Cour des comptes (July 2022), National Assembly report no. 1018 (April 2023), EDF (2022 results), Banque de France.
Documents compiled from the Cour des comptes, the CRE, the National Assembly and the Banque de France
Act I • The sacrificed capital
The patrimonial hold-up: why was this capital sacrificed?
To analyse the ARENH mechanism (Regulated Access to Historical Nuclear Electricity), a fundamental illusion must first be dispelled: EDF's cheap electricity was neither a gift of nature nor a passing stroke of luck. It was the direct product of the Messmer plan of 1974, one of the most massive industrial and financial efforts of the twentieth century.
This fleet of 58 reactors (56 since the closure of Fessenheim in 2020, plus Flamanville 3), representing more than €150 billion of cumulative investment, was financed on two joint pillars:
- The solvency of the State: massive loans taken out by EDF but fully guaranteed by the financial signature of the French Republic.
- The continuous effort of users and taxpayers: for four decades, French households and tradespeople paid electricity tariffs that included capital amortisation, upstream research (through the CEA) and safety provisions.
Full nuclear cost estimated at €65 to 75/MWh by the CRE. Market prices in 2022: €200 to 700/MWh.
About a quarter of EDF's nuclear output, with no investment obligation for the beneficiaries.
Estimate over 2011-2024, excluding the cost of the 2022 ARENH+ (€8.3 bn).
The car-industry comparison: Europe's double standard
A legitimate economic and geopolitical question arises: why did the European Union force the sale of EDF's electricity at cost to its competitors, when it never compelled Germany to lend BMW's or Volkswagen's assembly lines to other European carmakers?
The answer stems from the doctrinal asymmetry of the European Commission's Directorate-General for Competition (DG COMP):
Cars: a market for manufactured goods
Even though Germany has historically supported its heavy industry and its carmakers with toll-free motorways and massive energy exemptions, this market is deemed contestable, with no structural monopoly.
Electricity: a network market, a “natural monopoly”
Physical electricity must travel over a single transmission network (RTE) and distribution network (Enedis). The Commission took the view that EDF's amortised nuclear fleet constituted an overwhelming “essential facility”, preventing any competitor from existing.
Instead of requiring competitors to build equivalent power plants to earn their market share, Brussels and the French negotiators chose to engineer an artificial market: forcing the incumbent producer to feed its own rivals with the energy financed by previous generations.
Misappropriation of public funds? The legal qualification
In the strict sense of Article 432-15 of the French Criminal Code, misappropriation of public funds requires the destruction, diversion or removal of public money by a person vested with public authority, acting intentionally.
Since ARENH was voted by Parliament (NOME law of 7 December 2010), validated by the Constitutional Council and framed by decrees, it cannot be criminally qualified as misappropriation of funds.
In terms of public economics and the theory of the State, however, it is indeed an expropriation of a patrimonial rent: the country's sovereign asset was turned by law into a risk-free arbitrage rent, for the exclusive benefit of private commercial interests.
Act II • The mechanism
The ARENH trap: “heads I win, tails EDF loses”
Introduced by the NOME law under the presidency of Nicolas Sarkozy and in force from 2011, ARENH required EDF to sell up to 100 terawatt-hours (TWh) a year, about 25 % of its nuclear output, to its competitors, at a fixed price frozen at €42/MWh from 2012.
The scheme carried a fatal economic anomaly, formally flagged by the Cour des comptes in July 2022: the purchase option was free and entirely one-sided.
Architecture of the mechanism
Rent extraction based on a contractual asymmetry, with no capacity-investment obligation
How the asymmetry worked in practice
Low market prices (2015-2018, below €42/MWh)
Alternative suppliers dropped ARENH and bought their electricity on the wholesale markets. EDF was left to sell its nuclear output at a loss, without the alternatives contributing a single cent to the upkeep of the reactors.
High market prices (2021-2023, €200 to 700/MWh)
The alternatives rushed to ARENH to claim their 100 TWh at €42/MWh. They earned considerable margins, either by selling indexed contracts to consumers or by reselling that electricity directly on the wholesale market.
The ARENH+ scandal (2022): the sacrifice imposed on EDF
At the peak of the 2022 energy crisis, to finance its “tariff shield” without directly widening the budget deficit, Jean Castex's government forced EDF to grant 20 extra TWh to its rivals at €46.2/MWh.
Yet, hit by the unforeseen stress-corrosion problem on several reactors, EDF was not producing those volumes. The public company therefore had to buy back those 20 TWh on the markets at prices of €250 to 400/MWh in order to resell them at €46.2/MWh to its competitors.
Direct net cost of this single political decision to EDF: €8.3 billion of outright losses, which precipitated the company's historic loss in 2022 (a net result of −€17.9 billion).
The imbalance, player by player
2011-2025| Dimension | EDF (incumbent) | Alternative suppliers | French consumer |
|---|---|---|---|
| Industrial risk | 100 % (fuel, maintenance, life-extension programme, waste) | 0 % (no long-term purchase commitment, no investment) | Ultimately borne through public debt and network upkeep |
| Financial outcome | Cumulative forgone revenue estimated at €30 to 40 bn (2011-2024) | Risk-free margin whenever the spot price exceeded €42/MWh | Volatile bills, partial pass-through depending on the contract |
| Investment obligation | Maintain 56 reactors and design the future EPRs | No legal obligation to build generation capacity | Funding of the networks and of energy-transition levies |
Act III • Responsibilities
Who benefits from the crime? Responsibilities and the absence of any trial
The beneficiaries
The money taken from EDF was not used to modernise the French grid. It was shared between:
- Integrated energy giants (TotalEnergies, Engie, Eni): they captured millions of customers in France on the cheap, using ARENH as a loss leader, without financing any new nuclear or dispatchable hydro capacity.
- “Spreadsheet traders”: pure brokerage firms set up with minimal capital to speculate on the gap between the regulated price (€42) and European market prices.
Trials and administrative sanctions: where does justice stand?
CRE sanctions versus political immunity
Administrative sanctions against brokers (CoRDiS)
The dispute-settlement and sanctions committee of the energy regulator (CRE) opened several proceedings. Alternative suppliers (including Ohm Énergie) were fined several million euros for abuse of the right of access to ARENH: they secured the quotas for their customers, then unilaterally terminated those customers' contracts in the autumn to resell EDF's electricity at top prices on the wholesale market.
No criminal trial for ministers or economists
In France, macroeconomic policy decisions, even the most disastrous for public finances, fall under political responsibility. Neither the members of the Champsaur commission nor the successive ministers (Borloo, Besson, Royal, Hulot, Le Maire, Pompili, Pannier-Runacher) can be prosecuted for having designed or maintained a scheme voted into law.
EDF's aborted action before the Conseil d'État
In the summer of 2022, EDF's chief executive Jean-Bernard Lévy and the company's unions filed a claim seeking €8.3 billion in compensation from the State for the imposition of ARENH+. This dispute within the public sphere was neutralised by the buy-out of 100 % of EDF's capital and its delisting in 2023.
Act IV • Qualification
Corruption or incompetence? The factual qualification
Words must be weighed against the documented evidence.
Corruption in the strict sense: not substantiated
To date there is no evidence of illicit personal enrichment, kickbacks or material corruption at the top of the State in the genesis of ARENH. Calling the affair “corruption” in the criminal sense would be legally wrong.
The sociology of public policy does, however, document a major “regulatory capture”: intense lobbying by associations of private suppliers (such as ANODE) and the revolving door between central administrations and the management of competing energy companies steered the State's decisions against the interests of its own public operator.
Incompetence and doctrinal blindness: damning
This is where the official verdict is harshest. The 2023 parliamentary inquiry report (chaired by Raphaël Schellenberger, with Antoine Armand as rapporteur) denounced with rare vehemence some thirty years of policy incoherence, fed by expedient compromises and a blind alignment with a theoretical vision of competition disconnected from the industrial realities of electricity.
Believing that a physical electricity system, with sixty-year investment cycles, could run by the rules of a just-in-time stock market stands as one of the costliest errors of economic analysis of the Fifth Republic.
Act V • After 2025
How does the system work now?
Faced with ARENH's structural failure and with global geopolitical tensions, the mechanism was definitively buried on 31 December 2025. A new model, born of a compromise signed in late 2023 between the State and EDF and anchored in the reform of the European electricity market, now governs the sector.
The post-2025 model
Contract-based sales and universal fiscal redistribution of the nuclear rent
The four pillars of the current system
End of the cut-price single counter
EDF is no longer obliged to deliver a quarter of its energy at €42/MWh. The operator sells its entire output (360 to 400 TWh) through negotiated market agreements.
Long-term allocation contracts
To preserve the competitiveness of heavy industry (steel, aluminium, chemicals), EDF signs direct 10 to 15-year contracts with plants, set on the full cost of nuclear electricity (estimated at €65 to 75/MWh).
Fiscal skimming of windfall profits
If market prices soar again under the effect of international crises, the State directly captures EDF's excess rents through a progressive levy: 50 % of revenue above €78 to 80/MWh, 90 % above €110/MWh.
Universal redistribution to consumers
Unlike ARENH, which enriched intermediaries, the proceeds of this levy are returned as a rebate on the electricity bills of every household and every business in France.
Act VI • The human toll
Trapped consumers and bankrupt SMEs
Behind the regulatory engineering and the corporate balance sheets, how did the French consumer, whether a household, an artisan baker or the owner of a small business, come out of this decade of liberalisation? The record documented by Insee, the Banque de France, the energy ombudsman and the Cour des comptes is damning: France achieved the paradox of owning the most profitable nuclear fleet in Europe and of suffering waves of business closures caused by the electricity bill.
The household consumer: the mirage of low prices and the double payment
The initial promise was clear: competition would bring prices down for households. Reality unfolded in three stages.
2011-2020: the lock of “tariff contestability”
To allow suppliers without plants to exist alongside EDF, the law required the CRE to artificially inflate the regulated sales tariff (TRV). The tariff was no longer calculated on EDF's actual production cost, but added up the competitors' costs and their commercial margins. Between 2010 and 2020, household bills jumped by nearly 50 %, swollen by equalisation levies and by this artificial support for competition.
2021-2023: the market-offer trap
Customers who had left the regulated tariff for attractive private offers saw their rates multiplied by two, three or even five overnight. Some resellers even unilaterally terminated their subscribers in order to resell ARENH electricity on the wholesale markets.
The tariff-shield trap
The State capped the visible increase (at 4 % then 15 %), but this shield cost more than €30 billion, financed by public debt and the taxpayer. The consumer paid twice: once on the monthly bill, a second time through taxes, to fill the budget hole and bail out EDF.
The bleeding of SMEs and tradespeople: serial failures
It is the fabric of SMEs, shopkeepers and small industries that the economic aberration hit most brutally.
The grey zone: excluded from the regulated tariff
While households and micro-enterprises (fewer than 10 employees and under €2 m in turnover) benefited from the tariff shield, SMEs with more than 10 employees or a meter above 36 kVA were entirely excluded from it.
In the autumn of 2022, ordered to renew their contracts or face disconnection, thousands of businesses were forced to sign commitments at €350, €500 or €800 per MWh, against €45 to 55 historically.
Tradespeople and bakers
The emblem of this crisis, the bakehouse draws high, continuous electrical power. Bills rose from €1,200 to more than €6,000 a month, swallowing the entire operating result. Insee and the chambers of trades recorded a record level of business closures and receiverships among food artisans in 2022 and 2023.
Manufacturing industry
Glassworks, metalworking, refrigerated food processing: historic plants had to shut down their furnaces to stop the haemorrhage. The case of the glassmaker Duralex, forced into hibernation at the end of 2022 for want of being able to pay for gas and electricity, illustrated the fragility of the productive fabric. Other mechanical subcontractors, foundries and plastics firms did not survive.
The 2023-2024 record of failures
According to the Banque de France, the number of business failures passed the 57,000 mark in 2023, above the levels of the 2008-2009 financial crisis. Commercial-court judges explicitly identified the energy-bill shock as the immediate cause of insolvency for businesses that were otherwise commercially sound.
The bureaucratic failure of the “shock absorbers” and aid desks
Facing a revolt from employers, the government did open “electricity shock absorbers” and “energy aid desks”. But by the admission of Senate reports and employers' organisations (CPME, Medef), the eligibility files (EBITDA calculations, operating-loss thresholds, State-aid ceilings notified to Brussels) amounted to a genuine bureaucratic dead end.
More than a third of eligible businesses gave up filing an application, while actual payments arrived months late, to cash positions already asphyxiated.
In the end, the ARENH aberration cost the French economy an inestimable capital: a weakening of its industry's competitiveness against American and Asian rivals who kept paying three to four times less for energy, the permanent disappearance of hundreds of heritage businesses, and the deeper precariousness of millions of households.
Act VII • Documentary annex
The architects of the mechanism and the balance of responsibilities
The story of ARENH is not the fruit of an anonymous technical fatality, but of an unbroken chain of political and technocratic decisions. This table summarises the key players, their position at the time, their role in the architecture of the system and the legal fate they met.
Players, roles and legal status
2008-2023| Player / position | Period and government | Exact role | Legal status |
|---|---|---|---|
| Paul Champsaur Senior civil servant, economist, former chairman of Arcep |
2008-2009 Sarkozy presidency (Fillon government) |
Intellectual designer. Chairman of the eponymous commission tasked with finding a compromise with Brussels. He theorised the forced sale at cost of part of EDF's nuclear output to competitors, to inject competition without breaking up the fleet: the direct matrix of ARENH. | No prosecution. Advisory mission mandated by the State. Heard by parliamentary inquiry committees with no criminal charge. |
| Jean-Louis Borloo Minister of State for Ecology, Energy and Sustainable Development |
2007-2010 Sarkozy presidency (Fillon government) |
Political instigator of the law. Tabled and carried the NOME bill through Parliament. Endorsed the principle of an opening without industrial counterpart to close the European State-aid disputes. | No indictment. Act of government and law passed by Parliament. Political irresponsibility for legislative choices. |
| Éric Besson Minister for Industry, Energy and the Digital Economy |
2010-2012 Sarkozy presidency (Fillon government) |
Executor of the founding decree. Signed the order setting the ARENH price at €42/MWh on 1 January 2012, freezing that amount with no indexation on maintenance investment. | No indictment. Regular ministerial act, consistent with the legislation in force. |
| Neelie Kroes and Joaquín Almunia Successive European Commissioners for Competition |
2004-2014 Barroso I and II Commissions |
Supranational prescribers. Exerted constant litigation pressure on France (threats of fines for presumed State aid) to force the dismantling of EDF's competitive advantage in the name of the single market. | Institutional immunity. Acted within the powers conferred by the European treaties on competition. |
| Ségolène Royal and Nicolas Hulot Ministers for Energy and the Environment |
2014-2018 Hollande and Macron presidencies (Valls, Cazeneuve, Philippe governments) |
Maintained the freeze and weakened the sector. Refused for years to revalue the €42/MWh tariff despite EDF's repeated requests in the face of soaring life-extension costs, while endorsing the trajectory of cutting nuclear to 50 % and the scheduled closure of Fessenheim. | No indictment. Political responsibility covered by the 2015 energy-transition law. |
| Jean Castex and Bruno Le Maire Prime Minister and Minister of the Economy and Finance |
January 2022 Macron presidency (Castex government) |
Authors of the “ARENH+” levy. Imposed by order the delivery of 20 extra TWh at low cost to alternative suppliers, forcing EDF to take on €8.3 billion of debt by buying back that electricity at top prices on the markets. | Administrative claim extinguished. EDF's compensation claim before the Conseil d'État was dropped after the company's full renationalisation in 2023. No criminal liability found. |
| Executives of sanctioned alternative suppliers (Ohm Énergie and other prosecuted brokers) |
2021-2023 Energy-price crisis |
Predation and speculative arbitrage. Massive subscription of ARENH volumes on theoretical customer portfolios, then unilateral termination of those customers in the autumn to resell EDF's electricity on the wholesale markets at more than €400/MWh. | Financial sanctions (CRE / CoRDiS). Several million euros in fines for abuse of the right of access and breaches of market rules. Complaints from consumers and associations (UFC-Que Choisir) led to commercial and civil proceedings. |
The damage is national, the sanction does not exist
The ARENH file illustrates a major democratic flaw: the abyssal gap between the damage suffered by the nation (tens of billions of losses for the public operator, SME bankruptcies, a loss of sovereignty) and the impossibility of criminally sanctioning its architects.
In a representative democracy, the only sanction provided against strategic incompetence or ideological blindness remains the verdict of the ballot box: a mechanism that comes far too late, once century-old industrial infrastructure has already been dismantled or asphyxiated.
Source documents and official references
- Law no. 2010-1488 of 7 December 2010 on the new organisation of the electricity market (NOME law), and preparatory work of the commission chaired by Paul Champsaur (2009-2010).
- Cour des comptes (July 2022): L'organisation des marchés de l'électricité, public thematic report, chapter on ARENH.
- National Assembly (April 2023): Report no. 1018 of the inquiry committee on the causes of France's loss of energy sovereignty and independence (rapporteur Antoine Armand, chairman Raphaël Schellenberger).
- Energy Regulatory Commission, CoRDiS: decisions and financial penalties imposed on alternative suppliers for abuse of the right of access to ARENH volumes (2022-2024).
- EDF: 2022 annual results (net result of −€17.9 bn) and estimate of the ARENH+ cost (€8.3 bn).
- Ministry of the Economy, Finance and Industrial and Digital Sovereignty: State-EDF memorandum of agreement on the regulatory framework for nuclear electricity after ARENH (November 2023).
- Banque de France (2023-2024): monthly statistics and annual reviews of business failures in France.
- National energy ombudsman: 2021-2024 activity reports on contractual disputes, abusive terminations and soaring tariffs at alternative suppliers.