idea on which we are thinking for some time to improve the energy situation in the civilian sector starts from the assumption that if he puts in the energy efficiency of existing buildings, the energy problem in Liguria (Italy but in general it is different) will not be solved ever. On this point, in fact, the data provided by the State of Environment Report Ligurian are very clear: 48.8% of final consumption are swallowed up by the final consumption for residential buildings and private real estate portfolio.
Heating, cooling, hot water and final consumption of electricity, thus represent the largest share of the energy market. Slice, unlike other sectors, has not seen in time to reduce its absolute value. If, in fact, the global final consumption were reduced over time, in the civil sector, for which the PEAR identified as a target to reduce by 10% to be achieved by 2010 - is not observed a similar trend: In 1998, the value of consumption in the civil sector was 1,323 ktoe in 2005 this figure was increased to reach 1,453 ktoe.
This performance also stride even more if you are referring to target set by the European Commission, through the Energy Policy for Europe, proposed a series of objectives for the year 2020 , one of which is the reduction di almeno il 20% dei consumi attuali.
Sul civile la nostra regione ha investito soprattutto in termini normativi e procedurali (ad es. Certificazione energetica e relativo regolamento) ma queste iniziative avranno ricadute molto limitate sul piano complessivo, dato che sono limitate alle nuove costruzioni oppure ai casi di modifiche rilevanti del patrimonio edilizio esistente.
L’attuale architettura normativa si limita ad agire sull a nuova edificazione che, però, rappresenta solo il 5-6% dello stock edilizio complessivo ligure. Inoltre, la vita average of the buildings is around 70-80 years, in other words, all this time, hardly a building will be affected by restoration structures.
Here, then, that with the current legal framework is little one can hope to achieve in order to reverse the trend of total consumption, since the achievement of high standards efficiency in a few new projects, without affecting the other hand large segment of existing assets, as the result reached to curb the increase in consumption. Certainly not to reverse a trend.
La normativa ligure, infatti, non ha ritenuto di agire in modo incisivo, almeno fino ad oggi, sul piano dell’incentivazione alla riduzione dei consumi finali da parte degli attuali consumatori. Per tutti i motivi appena menzionati, è necessario affrontare nel breve periodo il problema del risanamento energetico delle preesistenze edilizie.
In una situazione così le strategie possibili sono essenzialmente due: o una politica, diciamo così, di riqualificazione della generazione energetica (cioè aumentare la produzione di energia da fonti rinnovabili), o cercare reduce consumption.
Regione Liguria, in fact, has invested and is still investing nell'incentivazione renewable energy. Given previous commitment, the production of renewable energy in all economic sectors-not only in the civilian sector-is still slightly below the 100 ktoe. It is very difficult, therefore, think that in a reasonable time we will see a significant reduction in consumption arising from traditional systems through large-necessarily-that exploit renewable energy.
Instead, choose the second path, that of reducing consumption, of course, should not mean reducing quality of life standards, but improve the efficiency of plant and machinery, but most of the buildings.
The latter would certainly be the most convenient way and with the effects more lasting, structural and largely beneficial. In Liguria, there are about almost 700,000 buildings, in which approximately 90% has high energy requirements: approximately 200-250 kWh / m (year) mean that 25 liters of diesel or 25 cubic meters of methane per square meter per year.
, there is the need to prepare a great program for improving energy performance in existing buildings. Halving consumption would in fact emerge definitively from the energy crisis, releasing substantial financial resources are likely to be to the benefit of all sectors of the economy and the household budgets of Liguria.
0 comments:
Post a Comment