# Tolosa substation fire and La Plata power outages > Live situation record from CLSTR: https://clstr.news/situations/tolosa-substation-fire-and-la-plata-power-outages > Updated: 2026-08-20T06:07:20.000Z. Sources: 15. Developments: 2. A fire at the Tolosa substation caused massive power outages across the La Plata region, affecting tens of thousands of users. The electricity distributor, EDELAP, utilized generator groups to restore service to approximately 99% of affected customers, though some residents experienced continued instability during network reconfiguration. The incident triggered significant regulatory and political scrutiny. The Buenos Aires provincial Electricity Control Body (OCEBA) launched an investigation into the causes of the fire, requesting maintenance records and technical logs. OCEBA officials noted that no prior inspections had been conducted at the Tolosa station, as the facility had not previously shown indicators requiring an audit. In the aftermath, local advocacy groups and authorities have demanded financial compensation for residents and sanctions against EDELAP. Political pressure has increased, with legislators requesting information from the provincial government and a local City Council president introducing an ordinance to terminate EDELAP’s service concession. ## Timeline ### 2026-08-20: Edelap faces scrutiny following Tolosa substation fire and regional outages Legislators and local officials in Argentina are demanding accountability from Edelap and Oceba following a substation fire in Tolosa that caused massive power outages across the La Plata region. 3 sources. https://clstr.news/cluster/edelap-faces-scrutiny-following-tolosa-substation-fire-and-regional-outages ### 2026-08-18: EDELAP restores 99% of power following Tolosa substation fire A fire at the Tolosa substation has caused widespread power outages in La Plata. EDELAP has restored service to 99% of users, while provincial authorities investigate the cause and consider sanctions. 15 sources. https://clstr.news/cluster/electrical-infrastructure-failures-cause-power-outages-in-argentina-and-cuba --- Cite as: Tolosa substation fire and La Plata power outages. CLSTR, https://clstr.news/situations/tolosa-substation-fire-and-la-plata-power-outages