The Daily Baseload Brief
DOE renews PREPA emergency orders through 7 November; SpaceX discloses $329 million in Tesla Megapack purchases for AI data centers; IAEA sets August ministerial for maritime nuclear. Power sector digest for 11 August 2026.
DOE renewed two Section 202(c) emergency orders for Puerto Rico's grid on 10 August 2026, extending PREPA's authority to dispatch critical generation units and continue vegetation management through 7 November 2026 - the fifth successive renewal since the original orders were issued in May 2025.
SpaceX disclosed in its Q2 2026 SEC filing that it spent $295 million on Tesla Megapacks in the April-June quarter, bringing its year-to-date total to $329 million. The batteries are being deployed at the Colossus and Colossus II AI data centers in the Greater Memphis area, where SpaceX's nameplate compute capacity reached 1.4 GW at end of Q2, up from 1.0 GW at end of Q1. The transactions are disclosed as related-party dealings given Elon Musk's dual role as CEO of both companies. The H1 2026 total is already roughly 65% of the $506 million SpaceX recorded in Megapack purchases for all of 2025.
On 5 August, DOE's Office of Energy Dominance Financing closed a $489.4 million loan to Amanecer Puerto Rico LLC, a Pattern Energy subsidiary, to fund 220 MW of battery energy storage in Arecibo and Santa Isabel. DOE projects the projects will prevent approximately 13 million customer interruption hours based on 2025 operating data and save Puerto Rican households and businesses roughly $312.5 million in electricity costs over 25 years. The loan was restructured from a Biden-era facility; solar provisions were removed in the revision.
The IAEA will hold the ministerial launch of its Atomic Technologies Licensed for Applications at Sea (ATLAS) initiative in Washington on 26-27 August 2026, hosted by the United States. ATLAS aims to build an international legal and regulatory framework for civil nuclear applications at sea - including floating nuclear power plants, nuclear-powered merchant ships, and remote coastal power supply. An industry day on 25 August will showcase U.S. nuclear and maritime firms' technologies ahead of the ministerial sessions.
Latin America's energy storage market continues to develop unevenly: deployment remains concentrated in demonstration projects, small-scale grid-support applications, and remote-area microgrids, with grid structure, transmission and distribution capacity, and market mechanisms still requiring improvement before a large-scale market can take shape[1].
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