Website: www.oeinerge.pt/servicos.asp
Summary
The energy balance of Oeiras was concluded in 2006. All forms of energy sold in the County were considered and, in parallel, all the energy consumed in Oeiras. Considering the revision of the Municipality Master Plan there was a great investment in this inventory, considered as a study that will support options/decisions. This study was divided in four main parts: The classic inventory, energy consumption in transportation, calculation of the energy saving potential in buildings (domestic and tertiary sectors) and a web portal about electricity consumption in the council. There was a great concern about the validation of the methodology in all phases.
Results
The demand of energy in Oeiras increased about 4.7% per year. Considering Final Energy and the sells of energy in the county, 2003, Diesel has the major share (30%) followed by electricity (29%) and Petrol (25%). Regarding Primary Energy, electricity is the most important energy form (50%) followed by Diesel (21%) and Petrol (18%).
Between 1994 and 2003 the electricity demand increased about 76% (7% per year). Looking upon the various sectors considered over the time line, the tendency reflects the policy of the municipality: in 1994 both domestic and tertiary sectors were responsible for the electricity consumption of 37%, while in 2003 the tertiary sector was responsible, by itself, for 52%. Nevertheless, in the domestic sector electricity demand increased, in these 10 years, with about 50%. This boost isn't justified only by the augment of population; this also reflects different patterns on electricity consumption in domestic sector (air conditioner usage generalization, and other equipments).
In the transports study, considering only Oeiras' origin/destination travels, the main consumption is from road transport: 92% in opposition to 8% rail transportation. In these, light passenger vehicles are responsible for 66% of that amount of energy spending, followed by cargo vehicles with 23%.
Comparing only passenger/cargo transportation energy consumption, passenger transport is responsible for 75%. Regarding this portion, 83% is individual transport in opposition to 17% from collective transport. This reflects the insufficient offer in public transport and the dependence on individual transport.
Contrasting travels with origin/destination in Oeiras and crossover travels, in a medium scenario, crossover travels are responsible for 56% of energy transport consumption in Oeiras.
This occurs mainly because of geographic reasons: Oeiras is a Council just next to the Capital, Lisbon, and people have to cross Oeiras to reach the main employing centre; its roads are also another good alternative to other congested ones (e.g. some Sintra inhabitants rather cross Oeiras, longer way, to travel through Complementary Itinerary 19, always with traffic congestion).
The principal results of Energy Saving Potential are that the tertiary sector is the one with more potential, and
Carnaxide, Porto Salvo are the Parishes where the action plans should begin (have a greater potential). The
domestic sector has a bigger potential in Oeiras/S. Juliao da Barra and Algés.
The web-portal is a tool that provides classic inventory results; however, it treats automatically all data by a
simple data upload.
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OEINERGE - Agência Municipal de Energia e Ambiente de Oeiras
Case Study (160 Kb PDF)