The partnership between Petrobras and BP has canceled a mega solar project in Rio Grande do Norte due to power curtailment and a lack of regulatory certainty in the clean energy sector.
The Brazilian renewable energy market suffered a significant setback with the abandonment of a major photovoltaic complex. Brazil’s electricity regulator, Aneel, officially revoked the permits for the installation of eight solar power plants that were scheduled to be built in the municipality of Baraúna, in Rio Grande do Norte.
The decision came from Lightsource BP, a company jointly controlled by Petrobras and global giant BP. The abandoned project would have added more than 350 megawatts of installed capacity to inject electricity into the national grid.
Structural Challenges and the Impact of Curtailment
The expansion of sustainable generation has encountered severe operational bottlenecks, most notably curtailment—a term that defines the forced reduction of electricity production due to oversupply or transmission constraints. The company argued that grid capacity shortages made it impossible to continue the work.
In addition to restrictions managed by Brazil’s grid operator, the ONS, falling electricity prices and rising component costs also weighed on the balance. The end of tax exemptions for importing solar panels drove up construction budgets, making financial returns incompatible with business risks.
The significant rise in operational restrictions and regulatory uncertainty have transformed the financial equation of the photovoltaic sector, making the execution of new capital investments unfeasible without solid guarantees of transmission capacity.
Legal ambiguity surrounding compensation rules for power curtailment also drove investments away. According to the company, recent regulations from the MME merely mitigated past losses while failing to provide predictability for the coming years.
Critical Scenario in the Northeast
Market data reveals an alarming outlook for generators in the Northeast region. Figures indicate that Rio Grande do Norte wasted nearly a quarter of its clean energy output last year due to mandatory interruptions imposed on the green grid.
Facing this adverse scenario, the joint venture is also seeking to terminate licenses for another set of photovoltaic plants in the same region, totaling more than 150 additional megawatts that will not move forward.
Despite the strategic retreat in Baraúna, the alliance between the state-owned oil company and the British multinational keeps its operations active in the country. The partnership’s immediate focus remains on managing consolidated assets, such as the operational solar complex in the state of Ceará.
