The Biomethane Atlas serves to support the identification of the most favorable locations for the implementation of biomethane production units, considering proximity to biogas sources (potential producers), potential consumers, and/or the gas network. It is developed using GIS software for mainland Portugal. The analysis is performed to identify clusters of producers/consumers in proximity, considering the division of the country into a 20km² grid (278 grid squares in mainland Portugal). For each of these, the current potential quantity of biomethane production in m³/year was estimated for the following types of potential producers: (1) Waste and Wastewater: municipal waste landfills, industrial waste landfills, and wastewater treatment plants; (2) Agro-industry: Other food products; Milk; Breweries; Slaughterhouses; Tomatoes; Juices/Salads; Rice husks and Dried fruits; (3) Olive mills and wineries: Olive pomace; Olive mills; Wineries and distilleries; (4) Intensive Livestock Farming: Poultry; Ruminants and Pigs; (5) Agricultural Byproducts: Tomatoes; Corn; Rice paddies; Olive grove pruning; Orchard pruning and Vine pruning. The following potential consumers were considered: (1) Refineries and CCGT Combustion Plants; (2) Industry: Glass; Chemical; Cement; Ceramics; Paper/Cardboard; Agri-food and Textile; (3) Vehicle gas refuelling stations; (4) Autonomous Gas Units; and (5) Injection points in the natural gas grid. A dimensionless index was developed that characterizes each grid square according to its suitability and ranges from 0 to 100 (100 is higher/better). The index can be viewed only for producers, for consumers, and for the combination of producers and consumers. A cell with many potential producers of high volumes of biomethane and potential consumers will have a higher value in the index. The location of production projects and areas with limitations for the application of digestates in soils are also shown. The Atlas does not replace case-by-case analysis of project location or licensing. It should be used for informational purposes only. The scale of analysis used is limited by the resolution and accuracy of the underlying information.
The onshore wind potential map of mainland Portugal contains the mapping of the main wind parameters at two reference heights, 20m and 80m such as the average wind speed (m/s), Incident Wind Power Flow (W/m2), Weibull parameters: Scale factor A (m/s) and Weibull Form factor k (dimensionless) and the map of the annual number of hours at full capacity (NEPs) of a standard reference turbine. Due to the advancement of wind technology, wind farms are starting to operate with wind turbines with hub heights at least, 100m high. In this sense, the renewable wind mapping (NEPs) at 100m is also available, taking into account the current actual technology.
Location of structures resulting from the submarine fluids emissions, such as: mud volcanoes (methane hydrates); Pockmaks (methane) and hydrothermal vents (fluids enriched in salts and metallic elements), located between the Mid-Atlantic Rift zone (Azores archipelago) and the continental margin.
Sedimentological characterization of part of the continental shelf. Folk classification (7 classes).
Delimitation of areas and identification of geological formations with potential for CO2 storage in mainland Portugal and its respective Exclusive Economic Zone (EEZ). The areas were obtained from a combination of historical data (mechanical oil exploration surveys and their geophysical logs and geophysical prospecting using the seismic reflection method), lithostratigraphic interpretation, requirements for storage in saline aquifers, as well as an update of the results of the COMET, CO2STOP and HYSTORIES projects, carried out in the framework of the CSA-GSEU project (WP3 Geoenergy, thematic subgroup CO2 and Hydrogen Storage).
The geological map of Spain and Portugal at 1:1 000 000 scale is a renewed version of the geological map of the Iberian Peninsula and the territories of Ceuta, Melilla and the Balearic, Canaries, Azores and Madeira islands. This small-scale map is edited jointly periodically by the Geological surveys of Spain (IGME) and Portugal (LNEG). This new version includes for the first time the geological information of the Spanish and Portuguese continental shelves and also the geology of the Atlantic Portuguese islands. This map records all the new geological knowledge provided by the complete survey at 1:50 000 scale in Spain (IGME’s MAGNA Plan) and the systematic geological mapping series developed in Portugal by the LNEG. The continental portion of the map was compiled starting from original drafts at 1:400 000 scale made for every main geological unit: Iberian Variscan Massif, Pyrenees, Betics, Cantabrian and Iberian cordilleras and the Duero, Ebro and Tajo Cenozoic basins for the territory of Spain and the geological maps at 1:200 000 scale in Portugal.