As approved, data centers must source 100 percent of contracted electricity demand from renewable or low-emission sources through supply contracts or self-generation. The Senate replaced “clean or renewable” language with “renewable or low-emission,” a change Senator Cid Gomes defended as more precise but which critics argue creates room for fossil fuel qualification. The Brazilian Nuclear Activities Development Association immediately cited the modification as strategic opportunity for nuclear power, noting data centers require continuous baseload availability. Solar, wind, hydroelectric, biomass and biogas explicitly qualify under the renewable category. The Senate’s own supporting documentation lists hydroelectric, biomass and biogas as low-emission examples.
Additional compliance requirements include water efficiency ratios not exceeding 0.05 liters per kilowatt-hour for equipment cooling measured annually, domestic investments equivalent to 2 percent of duty-free equipment value, and reservation of at least 10 percent of processing capacity for the Brazilian market rather than export or internal corporate use. Authorization for program participation requires Finance Ministry approval.
Civil society organizations including the Digital Rights Coalition and the Internet and Public Policy Laboratory opposed the accelerated timeline, noting Senator Gomes received the rapporteur assignment on August 28 for a September 1 floor vote. The groups documented 37 amendments filed with 13 incorporated between the day before and the morning of the session. They argued the R$7.2 billion total tax expenditure warranted territorial planning criteria, stricter environmental safeguards and digital sovereignty provisions beyond server physical location. Three separate amendments sought explicit natural gas eligibility through different technical pathways, with one requiring 30 percent renewable participation from 2031 onward alongside annual emissions neutralization.
Brazil’s energy matrix already derives nearly 90 percent of electricity from clean sources according to Senate testimony, with hydroelectric representing two-thirds of generation capacity. Industry projections indicate hydroelectric’s share will decline to 58 percent by 2025 as wind, solar and gas-fired generation expand. The International Energy Agency estimates grid constraints may delay 20 percent of worldwide data center capacity planned through 2030, making energy access and connection capability site selection determinants alongside fiscal incentives.
This article was curated and published as part of our South American energy market coverage.



