OREGES continues its efforts to provide reliable, up-to-date, and harmonized data for the Nouvelle-Aquitaine region. Members now have access to regional data up to 2025, departmental data covering the 2005-2025 period, and consolidated infra-departmental territorial data up to 2023, with provisional availability until 2025. A dedicated member space groups datasets, methodological notes, and complementary resources, forming the basis for territorial energy-climate diagnostics and strategies.
The data produced by OREGES evolves annually to integrate new sources and improve precision. Key developments for 2026 include a major update to household wood energy data, a new estimation method for heat pump production, the reallocation of major hydroelectric power plants to Nouvelle-Aquitaine in line with national provisions, and strengthened regional monitoring of biogas and methanation. These adjustments aim for greater indicator reliability and may lead to changes in historical series.
New observation topics are emerging, such as photovoltaic self-consumption, where self-consumed production has multiplied fivefold between 2021 and 2025; public lighting, with a significant decrease in consumption observed for several years; cooling needs, which are expected to become increasingly important with rising temperatures; and the evolution of methanation and biomethane production. These analyses help to better understand the transformations in the regional energy system.
The TerriSTORY® platform continues to be enriched to support territories in their energy-climate initiatives. Announced novelties include a new interface deployed in summer 2026, future climate indicators at the EPCI (Public Intermunicipal Cooperation Establishments) level, open access to some territorial data, and a 'Territorial Strategies' module for simulating transition pathways and evaluating their impacts, thereby facilitating data ownership and local decision-making.
A webinar also reviewed the evolution of national energy planning, including the publication of the new Multiannual Energy Programme (PPE) and the National Low-Carbon Strategy (SNBC 3). These developments will have significant consequences for future energy needs, mobility, greenhouse gas emissions, and the infrastructure required for the transition. AREC is already working on the territorial application of these objectives to help local authorities anticipate future changes.
The first climate indicators presented during the webinar reflect a particularly significant year in 2026, with global warming estimated at +1.4°C compared to the pre-industrial period, more frequent and intense heatwaves, extreme rainfall events, and more pronounced droughts. These findings reinforce the need to integrate climate change adaptation into territorial policies, already impacting health, agriculture, water resources, forests, biodiversity, infrastructure, and urban planning.
