First light over the highlands of southern Brazil
Brazil's renewable buildout is reshaping how the grid is balanced — and where flexibility has to come from.

What We Do

Two branches, from wind turbines to grid-scale storage

Arevix operates across two related disciplines — advising on wind, grid, and storage technology, and developing battery storage assets of our own.

Detail of battery storage enclosures and ventilation louvres
Consultancy

Energy Technology Consultancy

Independent technical and strategic advisory on grid control, ancillary services, and battery storage economics — drawing on 15+ years across wind, grid, and storage technology. Clients include RTDT; Julio has advised private investors on BESS projects since 2024.

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A row of battery storage enclosures on a prepared site pad
Development

BESS Project Development

End-to-end development of battery storage projects for the Brazilian market — from land and permitting through to construction-ready assets. Voltex, our platform for LRCAP 2026, is the first product of this branch.

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Leadership & Partners

Built on deep sector experience

Julio Xavier

Julio Xavier

Founder & CEO, Arevix Energy

Voltex shareholder — 50%

Control and Automation Engineer (PUC-PR) with a Master's in Electrical Engineering (UFPR). Over 15 years in the energy sector spanning technology, markets, flexibility, and battery storage — bridging technical, commercial, and strategic perspectives. Built an international career at Vestas, WEG, and Siemens, and has advised investors on energy projects and flexibility monetization since 2024, including an ongoing 140 MW BESS project in Germany. Partner of Grupo Noster, and Founder & CEO of Arevix Energy since 2026.

Julien Dias

Julien Dias

Partner, EconomizEnergia

Business Administration graduate with an MBA in Finance (IBMEC/SP) and a postgraduate degree in Finance (University of London). Over 20 years across Project, Corporate, Structured, and Carbon Finance, plus M&A, with a focus on renewable energy — including roles at Santander, Brascan Energética (Brookfield Renewable), and Electra Power. Canal Energia columnist and ISAE/FGV professor.

Guerra Energia

Development Partner

Voltex shareholder — 12.5%

A Brazilian energy company with over 35 years in the power sector — site prospecting, feasibility, regulatory processes, and delivery of renewable projects to Ready-to-Build status, with a solid track record in large-scale solar.

Voltex is also co-owned by CAL Energia, Prumo Consultoria Ambiental e Gestão, and AG Mendes Consultoria e Participações (12.5% each) — engineering and investment partners holding the same stake directly in each of the seven project SPVs.

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