Brazil’s renewable energy sector has a curtailment problem large enough to be a primary line item, not a footnote. Curtailment affected 20.6% of total solar and wind output in 2025, more than double the 9.3% rate recorded in 2024, according to grid operator ONS data cited by S&P Global. Through 10 May 2026, curtailment averaged 3 GW, equivalent to 17.8% of the country’s total potential solar and wind generation. The financial losses from curtailed renewable generation in 2025 alone were estimated at USD 1.23 billion, according to Canal Solar’s analysis of ONS figures. Brazil built renewable capacity in the northeast faster than it built the transmission network to carry it away, and that gap is now reshaping which roles matter most on an EPC leadership team.
The role that used to be a spreadsheet, now it’s a seat
Until recently, curtailment modelling was something that lived inside a generic financial analyst’s workbook, one input among many. That’s changing fast. Head of Curtailment Analytics is emerging as a standalone, quantitative leadership role, sometimes reporting into Finance, sometimes into Development, but increasingly with its own seat regardless of where it sits organisationally. The reason is blunt: a project modelled on uncurtailed generation assumptions in the northeast can present an IRR to the board that has almost nothing to do with what the asset will actually earn. Boards are starting to ask for this role by name.
Storage decisions that used to happen too late
Brazil’s first-ever grid-scale battery storage auction, scheduled for April 2026 with 18 GW of projects registered, signals that the government now treats storage as the primary structural response to curtailment. That’s created real demand for a Director of Storage Integration, someone whose specific job is deciding where and how to co-locate batteries at the design stage, not bolting them on after a project is already committed to a single-technology build. The northeast, with the best irradiation and the worst grid connectivity in the country, is where this role matters most and where it’s hardest to fill.
| Role | What it used to require | What it requires now |
|---|---|---|
| Head of Curtailment Analytics | Input buried inside general financial modelling | Standalone quantitative role, given USD 1.23bn in 2025 losses tied directly to this variable |
| Director of Storage Integration | Post-hoc engineering add-on | Design-stage decision-maker on battery co-location, especially in the northeast |
| Regulatory Compensation Lead | Did not need to exist | Tracking an evolving, still-incomplete compensation framework under Provisional Measure 1304 |
| Transmission-Aware Site Selection Lead | Resource quality was the dominant factor | Grid constraint data now weighted equally with irradiation quality in site decisions |
Where this is pushing the market on executive search
No definitive compensation framework exists yet for curtailed producers, Provisional Measure 1304 directed the government to build one in 2025, but as of June 2026 it still wasn’t finalised. That regulatory gap is itself becoming a specialised knowledge area. Zavala Civitas expects a Regulatory Compensation Lead role to formalise over the next 12 months specifically to track this framework as it develops and to model its financial implications in real time, because whoever gets ahead of the eventual rules will have a real advantage in how existing curtailed assets get repriced once compensation terms are set.
Why curtailment fluency is not yet a standard search filter
Most EPC executive searches in Brazil still filter primarily on project delivery track record and permitting experience, treating curtailment exposure as a technical detail for the engineering team. Given that curtailment now affects roughly a fifth of national solar and wind output with a documented billion-dollar impact, this is a significant and correctable gap in how searches are structured. Executives who can speak with precision about node-specific curtailment exposure are a distinct minority of the candidate pool, and they are, in our experience, disproportionately valuable to clients developing in the northeast specifically.
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Methodology & Citations
Zavala Civitas combines market mapping focused on curtailment and grid-constraint fluency with structured assessment of storage co-location experience and regulatory exposure. The analysis is supported by ONS grid data, Canal Solar’s analysis of curtailment losses, and market evidence surrounding Brazil’s grid-scale battery storage programme.
Frequently Asked Questions: Executive Search in Brazil for EPC and Renewable Energies
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