Reducing energy costs for businesses and industrial sites: the right levers

#Reducing energy costs for businesses and industrial sites: the right levers

Updated March 2026 - Energy cost reduction is not achieved through supplier negotiation alone. For a business or industrial site, the energy bill is a composite cost that can be worked on across several dimensions: consumption and usage patterns, equipment and process efficiency, peak demand management, contractual terms, energy taxation and the relevant fiscal or regulatory relief schemes.

The end of France's energy price shield (bouclier tarifaire) on 31 December 2025, combined with the revaluation of the electricity excise duty and continued market volatility, means that energy costs must now be managed as a strategic margin item — not a fixed overhead.

A business electricity bill in France is built around four distinct components. The energy price itself, set by your supply contract, typically represents 30 to 40 % of the total amount. Network tariffs (TURPE for electricity, ATRT for gas), regulated by the Commission de Regulation de l'Energie (CRE), cover the transport and distribution of energy to your meter.

Taxes and contributions account for 25 to 35 % of the bill depending on your consumption profile. This is where a significant portion of your energy cost can be influenced. VAT, applied at the standard rate of 20 % on all line items since 1 August 2025 for subscriptions up to 36 kVA.

Each component requires a différent approach. Negotiating the supply price does not reduce taxes or network tariffs. A comprehensive energy cost strategy must address each line item specifically.

The TICFE was merged with the CSPE to form the electricity excise duty (accise sur l'electricite). Since 1 January 2022, collection has been handled by the Direction general des Finances publiques (DGFiP), no longer by Customs.

From 1 February 2026, the standard electricity excise rates are:

• Households and similar (≤ 36 kVA): 30.85 €/MWh
• SMEs (36 to 250 kVA): 26.58 €/MWh
• High power (> 250 kVA): 26.58 €/MWh

These figures represent a +3.06 % increase compared to 2025 (25.79 €/MWh). For a business consuming 500 MWh/year on a high-power meter, this adds nearly 400 € in annual cost from the excise alone, subject to 20 % VAT.

Natural gas follows a similar trajectory. The gas excise duty (ex-TICGN) stands at 16.39 €/MWh from 1 February 2026, up from 15.43 €/MWh in 2025. Taxes and contributions represent approximately one quarter of professional gas bills.

Energy taxation does not apply uniformly. French law provides derogatory régimes for certain activities, but they are rarely activated proactively. This is a major avenue for structurally reducing energy costs.

From 1 February 2026, the reduced-rate framework for industrial activities has been rationalised from seven tariffs down to five, with the introduction of a new electro-sensitivity threshold:

• Electro-intensive activities (electro-intensity > 6.75 %): 0.5 €/MWh
• Hyper electro-intensive activities (electro-intensity > 13.5 %): 0.5 €/MWh
• Electro-sensitive activities (electro-sensitivity > 2.25 %): 3.0 €/MWh
• Large electricity consumers (electro-intensity > 0.5 %): 5.5 €/MWh
• Activities exposed to international competition: 0.5 €/MWh

A special régime also applies to data centres: their excise rate can be reduced to 10 €/MWh under conditions (electro-intensity ≥ 2.25 %, minimum annual consumption ≥ 1 GWh/year, compliance with energy efficiency constraints). The list of exposed sectors was updated by the decree of 18 December 2025.

The gap between the standard rate (26.58 €/MWh) and the lowest reduced rate (0.5 €/MWh) is substantial. For an industrial site consuming 2,000 MWh/year, the annual difference exceeds 52,000 €.

Access to derogatory régimes is never automatic. It requires a proactive approach from the business, which must qualify its usage patterns and build a compliant file.

Several cases of full exemption exist, regardless of the business sector. Electricity used in metallurgical processes, chemical reduction or electrolysis is exempt. The same applies when electricity represents more than 50 % of the production costs of a product, or when it is used in the manufacture of non-metallic mineral products (NACE division 23).

For reduced rates, eligibility is based on precise technical and economic criteria defined by the Code des impositions sur les biens et services (CIBS). The company's NAF code is a starting point, but rarely a conclusion. Two companies under the same NAF code can find themselves in very différent fiscal situations depending on their actual electricity usage patterns.

The procedure requires the consumer to complete a Cerfa certificate and submit it to their electricity supplier. Certificates are not sent to the DGFiP but must be kept available for inspection by the tax authorities. Particular vigilance is required: a change in usage, process or scope can invalidate eligibility during the contract period.

When a business was éligible for an exemption or reduced rate but did not apply it, a retroactive refund is possible. The recovery period is limited to two fiscal years following the year of payment.

During the years of the energy price shield, this mechanism was largely inoperative. Since the return to the standard régime in 2025, two full fiscal years have elapsed. Éligible businesses now have full recovery capacity.

This right to reimbursement requires building a documented file, qualifying electrical usage site by site, and demonstrating eligibility for the relevant periods. This is technical work that combines tax analysis, understanding of industrial processes and mastery of déclaration obligations. But the amounts at stake almost always justify the investment.

Beyond taxation, reducing energy costs requires concrete control of consumption. ADEME (the French Ecological Transition Agency) identifies several immediately actionable approaches.

Usage monitoring comes first. Installing sub-meters, identifying major consumer equipment, detecting off-hours consumption (nights, weekends). Sobriety gains are often the fastest and cheapest to achieve. A business can reduce its bill by 5 to 15 % simply by eliminating identified waste.

Equipment efficiency is the second lever. Electric motors, compressed air systems, heating and cooling represent significant saving potential. Replacing an old motor with an IE3 or IE4 model can generate electricity savings of 20 to 40 % on that item. ADEME offers financial support for these investments, notably through Energy Saving Certificates (CEE).

Peak demand management is a third axis. For sites on yellow or green tariffs, the subscribed power determines a fixed portion of the bill. Shifting energy-intensive operations to off-peak hours can reduce this item by 10 to 20 %, without any reduction in production output.

The Agence de la Transition Ecologique (ADEME) offers several support programmes for businesses committed to reducing their energy costs.

Energy Saving Certificates (CEE) fund a wide range of works: insulation, LED lighting, variable speed drives, waste heat recovery, energy audits. The sixth CEE period (2026-2030) is being rolled out with a strengthened framework.

Mandatory energy audits for certain businesses also represent an opportunity. Beyond regulatory compliance, they reveal saving potential that is often unsuspected. Some regions and local authorities offer complementary subsidies. Contact your chamber of commerce or regional ADEME agency to identify the schemes applicable to your situation.

See also CSPE reimbursement — how it works, corporate tax optimisation stratégies and tax and social compliance questions.

Hayot Expertise advice: the best energy saving almost always comes from a combination of small, rational decisions rather than a single spectacular measure.

For a company or industrial operation, energy cost reduction analysis should distinguish between four types of action:

• Usage savings: consuming less without changing the operating model — a real saving that improves the margin directly;
• Contractual optimisation: renegotiating supply contracts, reviewing tariff structures and ensuring the subscribed capacity matches actual usage;
• Energy taxation: understanding which levies apply, whether any exemption or reduction régimes are available (based on activity, consumption volumes or energy intensity), and whether CSPE/TICFE reimbursement rights have been fully exercised;
• Profitable investment: capital expenditure on equipment replacement or process improvement that pays back in reduced energy costs — this requires a proper financial modelling of the investment case, not just a headline payback estimate.