Comparative analysis of methods for monitoring CO2 emissions from the energy sector in the context of climate change

In an economy increasingly globalized a country's energy strategy is done in the context of changes and developments taking place worldwide. Due to increasing energy demand, energy has developed rapidly without the problem of environmental protection. [1]. Energy sector is the largest sector in the emissions of greenhouse gases, responsible for 66,44% of total emissions of greenhouse gases generated nationwide in 2009. Total energy demand in 2030 will be around 50% higher than in 2003 [1]. European Commission proposes a set of documents representing the new energy policy of the EU, increase emissions of greenhouse gases by 20% by 2020 compared to 1990. [2; 3]. Monitoring and reporting of greenhouse gas (GHG) is the basis for the (EU ETS) Romania, has undergone two phases of the EU ETS, first phase was performed in 2005-2007 in accordance with the Order of 1175/2006 and in the second first phase, in 2008-2012 in accordance with Decision 589/2007.[4; 5]. In the third phase of monitoring, starting on 01.01.2013 in all EU Member States nr.601/21.06.2012 rules apply. The paper proposes an application in the energy sector, for the evaluation of CO2 emissions using both calculation data from analytical laboratory investigations and those determined by direct measurement of the source. From research carried out it was determined the method for assessing CO2 is direct measurement and for reporting and monitoring that both methods can be used (direct measurement and calculation), the results being comparable, the differences in uncertainty margin were under 10%, acceptable for automatic measurements [5; 6] .