+35% growth in Q2 2026 turnover driven by new capacity, notably in South Africa and Uzbekistan

Turnover of 198.0 million euros in Q2 2026

Operational capacity and production indicators as of June 30, 2026

Continued execution of the SPRING plan and confirmation of 2026 financial objectives

Voltalia (Euronext Paris, ISIN code: FR0011995588), an international player in renewable energy, today publishes its turnover for the second quarter of 2026.

Robert Klein, Chief Executive Officer of Voltalia, states:

“The second quarter of 2026 confirms the momentum initiated since the start of the year, with turnover increasing sharply, driven by all our Business Units. In a context marked by a less favourable wind resource in Brazil and a level of curtailment that remains significant, our operational indicators are improving, with half-year production slightly up and capacity in operation now close to 3 gigawatts. In addition, the recognition in the first half of the year of financial compensation related to production losses resulting from curtailment between September 2023 and November 2025 5 represents an important step forward for the Group. Beyond these positive developments, we continue to execute our SPRING roadmap with discipline.”

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First-half (H1) 2026 and second-quarter (Q2) 2026 turnover

Turnover for the first half of 2026 amounts to 331.3 million euros, up +30% at constant exchange rates compared with the same period in 2025 (+32% at current exchange rates). Energy Sales accounts for 57%, Renvolt for 37% and Voltalia Hub for 5% of first-half 2026 turnover.

Turnover for the second quarter of 2026 amounts to 198.0 million euros, up +35% at constant exchange rates (+38% at current exchange rates), marking a clear acceleration after growth of +25% in Q1 2026, driven by strong growth across all activities: Energy Sales, Renvolt and Voltalia Hub.

REVIEW OF ACTIVITIES 6

Energy Sales

Second-quarter 2026 production amounts to 1,303 GWh, up +4% compared with the second quarter of 2025. Over the first half of 2026, production reaches 2,408 GWh, up +1%, benefiting from the contribution of new power plants commissioned, notably in South Africa and Uzbekistan, as well as from Helexia’s growth, despite lower production in Brazil. Brazilian production curtailment represents 105 GWh in the second quarter of 2026, down -42% compared with the second quarter of 2025.

Breakdown of production by region

First-half 2026 turnover from Energy Sales reaches 190.2 million euros, up +22% at constant exchange rates (+25% at current exchange rates). This change mainly reflects favourable price effects, the contribution from new capacity commissioned and the recognition in the first half of the year of compensation related to production curtailment in Brazil. Excluding the positive impact of curtailment compensation in Brazil, the increase would have been 21.2 million euros, i.e. +14%. These factors offset lower Brazilian production, curtailment which remains significant at 218 GWh in the first half of 2026, albeit down compared with 268 GWh recorded in the first half of 2025, as well as a less favourable wind resource. Curtailment represents 13% of Brazilian production and 8% of the Group’s total production in the first half of 2026.

Energy Sales turnover is generated 49% in Latin America, 24% in Europe, 17% by Helexia production and 10% in the rest of the world.

Second-quarter 2026 turnover from Energy Sales reaches 118.2 million euros, up +40% at constant exchange rates (+46% at current exchange rates), showing a significant sequential acceleration after growth of +3% in Q1 2026. This performance is driven by turnover growth across all regions, Helexia’s contribution and the recognition of compensation related to curtailment in Brazil. Excluding this compensation, turnover growth would have been 20.4 million euros, i.e. +25%.

In Brazil, curtailment decreases in absolute terms over the quarter, but remains a significant proportion of production, given that production levels are also lower.

Renvolt

First-half 2026 turnover from Renvolt amounts to 123.9 million euros, up +45% at constant and current exchange rates. It is driven by continued momentum in both construction and maintenance for third-party clients, notably in Europe and Africa.

Second-quarter 2026 turnover from Renvolt amounts to 69.6 million euros, up +26% at constant and current exchange rates, driven by the contribution of around 750 MW of projects under construction for third-party clients, notably in France, Ireland, Spain and Senegal.

Voltalia Hub

First-half 2026 turnover from Voltalia Hub amounts to 17.2 million euros, up +20% at constant exchange rates (+21% at current exchange rates). This increase notably reflects growth in specialised activities, including maintenance for third-party clients in Brazil and certain services activities.

Second-quarter 2026 turnover from Voltalia Hub amounts to 10.2 million euros, up +35% at constant exchange rates (+37% at current exchange rates), driven by growth in specialised services activities.

NEW ANNOUNCEMENTS

In Brazil, Voltalia recognises compensation related to curtailment in the first half of 2026 7

Voltalia has completed the process to join the mechanism provided for by Brazilian Law No. 15,269/2025, entitling it to financial compensation for wind and solar production losses resulting from production limitations imposed by the National Interconnected System between September 2023 and November 2025 8.

Following several months of regulatory and technical clarifications obtained from the Ministry of Mines and Energy and with professional associations, the uncertainties related to the implementation of the mechanism have been lifted.

In this context, Voltalia recognised in June 2026 a net compensation amount of 175 million Brazilian reals (approximately 29 million euros, based on an EUR/BRL exchange rate of 6.01), corresponding to the compensation related to losses incurred over the period. This amount includes 17 million euros of additional turnover and 12 million euros of compensated expenses, generating a total positive impact of approximately 29 million euros on first-half 2026 EBITDA.

Shareholding highlights 9

The European Bank for Reconstruction and Development (EBRD) has fully exited Voltalia’s share capital, following the gradual reduction of its stake initiated after the 2019 capital increase. Voltalia maintains a strong relationship with the EBRD, notably through the latter’s participation in multiple project financings in Albania, Tunisia and Uzbekistan.

In addition, on 6 May 2026, VMO INVEST declared that it had crossed the threshold of 5% of Voltalia’s share capital upwards. At that date, it held 6,575,000 shares, representing 5.007% of the share capital and 2.943% of the voting rights.

In French Guiana, the Cacao biomass power plant is back in production 10

The Cacao biomass power plant, located in French Guiana, restarted production in May 2026 after the shutdown that occurred in 2025 following the incident at the adjacent sawmill. This restart contributes to the gradual normalisation of asset availability in French Guiana.

In French Guiana, finalisation of the financing of the Saint Anne hybrid power plant 11

The financing, for a total amount of 165 million euros and co-arranged by Caisse d’Epargne CEPAC, will fund the construction and operation of a 43 MW photovoltaic solar power plant, a 135 MWh battery storage facility and a 7 MW biofuel generator in French Guiana.

This financing comprises 123.8 million euros of long-term credit and 34.6 million euros of short-term credit facilities. It is structured as a Green Loan and is aligned with the Green Loan Principles 12. As such, the funds are exclusively allocated to the financing of the project and are subject to dedicated environmental monitoring and reporting.

This project forms part of Voltalia’s development of hybrid solutions in non-interconnected areas, combining solar production, storage and dispatchable generation in order to contribute to the security of supply of the territory.

OPERATIONAL AND FINANCIAL OBJECTIVES

2026 operational and financial objectives

As part of its strengthened approach to operational and financial discipline, Voltalia is reviewing the phasing of the launch of construction of certain projects. This selective review leads to a revised 2026 total capacity objective of around 3.6 GW 13 instead of around 3.7 GW, while maintaining the Group’s annual financial objectives.

EBITDA of between 210 and 230 million euros, including 190 to 210 million euros generated by the Energy Sales business, and a positive net result

Voltalia confirms its 2026 financial objectives. This confirmation includes the expected positive impact of the compensation in Brazil, estimated at approximately 29 million euros on EBITDA, of which approximately 17 million euros recognised in turnover in the second quarter and approximately 12 million euros as a reduction in operating costs.

2027 operational and financial objectives

2030 operational and financial objectives

Mission objectives for 2027 and 2030

Voltalia confirms its trajectory towards self-financed growth over the 2026 to 2030 period, with the aim of paying a first dividend from 2028.

NEXT ON THE AGENDA:

FORWARD-LOOKING STATEMENTS

This press release contains forward-looking statements. These statements do not constitute historical facts. They include projections and estimates and the assumptions on which they are based, statements relating to projects, objectives, intentions and expectations regarding financial results, future events, operations, services, product development and their potential, or future performance. Such forward-looking statements can often be identified by the use of words such as “expect”, “anticipate”, “believe”, “intend”, “estimate” or “plan”, as well as other similar terms. Although Voltalia’s management believes that these forward-looking statements are reasonable, investors are cautioned that they are subject to numerous risks and uncertainties that are difficult to predict and generally beyond Voltalia’s control, and that may cause actual results and events to differ materially from those expressed, implied or projected in such forward-looking information and statements. These risks and uncertainties include, in particular, uncertainties inherent in changes in the selling price of the electricity produced by Voltalia, changes in the regulatory environment in which Voltalia operates, and the competitiveness of renewable energies, as well as other factors that may affect the production capacity or profitability of Voltalia’s production sites, and those developed or identified in Voltalia’s public filings with the Autorité des marchés financiers, including those listed in Section 2.2 “Risk factors” of Voltalia’s 2025 Universal Registration Document filed with the Autorité des marchés financiers on 30 March 2026. Voltalia undertakes no obligation to update these forward-looking information and statements, subject to applicable regulations.

Capacity in operation as of June 30, 2026

Capacity under construction as of June 30, 2026

Electricity production as of June 30, 2026

Quarterly electricity production (Q2) 2026

Average EUR/BRL rate

1 Today's announcements on the recognition of Brazilian compensation in the first half of the year, including 17 million euros of impact on turnover out of the total 29 million euros impact on EBITDA.

2 July 23, 2025, press release and see recent announcements section.

3 Announced in the first quarter 2026 turnover press release.

4 This objective of capacity in operation and under construction does not include assets that would potentially be disposed during the period.

5 See recent announcements section.

6 It should be noted that the Development activity does not generate turnover, as the associated revenues take the form of capital gains on disposals, which are recorded in EBITDA.

7 Today’s announcement.

8 Fourth quarter 2025, press release.

9 Today’s announcement.

10 Today’s announcement and announcement of the cessation of Cacao's activity in July 23, 2025 press release.

11 Today’s announcement.

12 The Green Loan Principles are an international market benchmark, LMA the Loan Market Association (LMA), the Loan Syndications and Trading Association (LSTA) and the Asia Pacific Loan Market Association (APLMA). defining the criteria that a loan must meet to be qualified as "green": dedicated use of funds, documented selection of the project, traceability of sums and regular environmental reporting.

13 See note number 4.

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