Eletrobras (EBR) shifts Colíder hydro plant from alert back to attention

Rhea-AI Filing Summary

Centrais Elétricas Brasileiras S.A. (Eletrobras) reports that the Colíder Hydroelectric Power Plant has moved from alert status back to attention status after technical analyses confirmed the effectiveness of corrective interventions on previously identified conditions.

The company will start a gradual and controlled refilling of the reservoir, with continuous monitoring of water quality and wildlife and ongoing communication with local communities. Authorities have authorized this procedure after reviewing the action plan, and AXIA Energia plans to keep monitoring and carrying out complementary work to return the plant to normal safety status, emphasizing the protection of people, the environment, and its assets.

Insights

Infrastructure and ESG risk analyst

Safety status at Colíder dam improves, easing operational risk but monitoring continues.

The Colíder Hydroelectric Power Plant has shifted from alert back to attention status after interventions on drainage-related issues and subsequent technical validation. This change suggests reduced immediate safety concern versus the prior alert designation, which followed problems in some drainage systems.

The company is resuming reservoir refilling in a gradual and controlled manner, under authorization from competent authorities and with continuous monitoring of water quality, wildlife, and community communication. AXIA Energia plans further monitoring and complementary work to restore normal safety status, so the overall risk profile still depends on future technical assessments and execution of these additional measures.

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16 of the

Securities Exchange Act of 1934

For the month of February, 2026

Commission File Number 1-34129

CENTRAIS ELÉTRICAS BRASILEIRAS S.A. - ELETROBRÁS

(Exact name of registrant as specified in its charter)

BRAZILIAN ELECTRIC POWER COMPANY

(Translation of Registrant's name into English)

Rua da Quitanda, 196 – 24th floor,
Centro, CEP 20091-005,
Rio de Janeiro, RJ, Brazil

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. 

Form 20-F ___X___ Form 40-F _______

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes _______ No___X____

 Centrais Elétricas Brasileira S/A 00.001.180/0001-26 Avenida Graça Aranha, 26 – Centro Rio de Janeiro │RJ – Brasil │20030-900 Colíder Hydroelectric Power Plant leaves alert status Rio de Janeiro, February 23 , 2026 – Centrais Elétricas Brasileiras S/A – Eletrobras (“Company” and “AXIA Energia”), further to the market announcement dated August 15, 2025, informs that the Colíder Hydroelectric Power Plant has officially exited alert status and returned to attention status, after technical analyses confirmed that the interventions carried out were effective in resolving the condition that had led to the alert. The Company will begin today the gradual and controlled refilling of the reservoir, prioritizing the safety of people and the environment. The process includes continuous monitoring of water quality and wildlife, as well as communication with local communities. The procedure was authorized by the competent authorities following the review of the respective action plan. Background In order of increasing severity, the four possible safety levels are classified as normal, attention, alert, and emergency. In May 2025, AXIA Energia acquired the power plant from Companhia Paranaense de Energia — Copel while it was in attention status. At that time, the Company began implementing measures aimed at changing the safety level to normal, including a safety inspection conducted by AXIA Energia specialists and by an external Board of Consultants to define and implement an action plan to achieve this objective. In August 2025, following problems identified in some drainage systems, the facility moved from attention status to alert status. Since then, the Company has commissioned technical studies and specialists to further assess the structure. As a preventive measure, controlled drawdown of the reservoir was carried out, and field actions were implemented to prevent environmental and social impacts. The interventions recommended based on this diagnosis were executed and completed in November 2025, after which the Company began conducting additional tests and monitoring to assess the adequacy of the measures adopted. These measures proved effective, allowing the safety level to be changed from alert to attention. AXIA Energia will continue to carry out monitoring and complementary work with the objective of restoring the plant to normal safety status. These actions reinforce AXIA Energia’s priority on the safety of people, the environment, and its assets. Eduardo Haiama Vice President of Finance and Investor Relations

 

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: February 23, 2026

CENTRAIS ELÉTRICAS BRASILEIRAS S.A. - ELETROBRÁS
By:	/S/ Eduardo Haiama
	Eduardo Haiama Vice-President of Finance and Investor Relations

FORWARD-LOOKING STATEMENTS

This document may contain estimates and projections that are not statements of past events but reflect our management’s beliefs and expectations and may constitute forward-looking statements under Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended. The words “believes”, “may”, “can”, “estimates”, “continues”, “anticipates”, “intends”, “expects”, and similar expressions are intended to identify estimates that necessarily involve known and unknown risks and uncertainties. Known risks and uncertainties include, but are not limited to: general economic, regulatory, political, and business conditions in Brazil and abroad; fluctuations in interest rates, inflation, and the value of the Brazilian Real; changes in consumer electricity usage patterns and volumes; competitive conditions; our level of indebtedness; the possibility of receiving payments related to our receivables; changes in rainfall and water levels in reservoirs used to operate our hydroelectric plants; our financing and capital investment plans; existing and future government regulations; and other risks described in our annual report and other documents filed with the CVM and SEC. Estimates and projections refer only to the date they were expressed, and we do not assume any obligation to update any of these estimates or projections due to new information or future events. Future results of the Company’s operations and initiatives may differ from current expectations, and investors should not rely solely on the information contained herein. This material contains calculations that may not reflect precise results due to rounding.

FAQ

What did Eletrobras (EBR) disclose about the Colíder Hydroelectric Power Plant?

Eletrobras disclosed that the Colíder Hydroelectric Power Plant has moved from alert status back to attention status. This follows technical analyses confirming that previously implemented interventions effectively addressed the condition that originally triggered the alert level at the facility.

What operational steps will Eletrobras (EBR) take at Colíder after leaving alert status?

The company will begin gradual and controlled refilling of the Colíder reservoir, prioritizing safety. The process includes continuous monitoring of water quality and wildlife, along with communication with local communities, and was authorized by competent authorities after review of the plant’s specific action plan.

Why was the Colíder plant moved to alert status in 2025 according to Eletrobras (EBR)?

In August 2025, the Colíder plant shifted from attention to alert status after problems were identified in some drainage systems. As a preventive measure, the company lowered the reservoir and implemented field actions to avoid environmental and social impacts while commissioning additional technical studies.

What actions did AXIA Energia take to improve safety at the Colíder Hydroelectric Power Plant?

AXIA Energia conducted safety inspections with internal specialists and an external Board of Consultants, defined an action plan, and executed recommended interventions completed in November 2025. Subsequent tests and monitoring showed these measures were effective, enabling a change from alert back to attention status.

What are the safety classification levels mentioned by Eletrobras (EBR) for hydroelectric plants?

The company describes four safety levels, in order of increasing severity: normal, attention, alert, and emergency. Colíder is currently at attention status after leaving alert status, and AXIA Energia intends to continue work to restore the facility to normal safety status over time.

How does Eletrobras (EBR) address environmental and community concerns at the Colíder plant?

The company highlights continuous monitoring of water quality and wildlife during reservoir refilling, along with communication with local communities. Earlier, it carried out controlled reservoir drawdown and field actions as preventive measures to avoid environmental and social impacts while technical studies and interventions were underway.