New study shows greenhouse gas breakdown of Paris

Apur, the City Planning Agency of Paris, has released a detailed study of greenhouse gas emissions in Paris based on different heating systems used in the residences and buildings across the French capital. 

The two-year study looked at the Parisian housing stock (96,000 buildings) and established a diagnosis of energy performance and greenhouse gas emissions caused by heating. The energy consumption of primary residences in Paris is 247 kWh/m2/year of which 167 kWh/m2/year goes on heating.  In total, carbon emissions per inhabitant are 338 kg per year for heating in Paris.

The 16th arrondissement is the biggest offender in Paris when it comes to greenhouse gas emissions per resident. This is partly because the predominant late 19th century Haussmann era buildings were initially fitted with collective coal-fired heating systems and today these buildings are heated with oil-fired systems, which produce the most greenhouse gases. In addition, most apartments in the 16th are bigger than average. 

“It is clear that we should encourage the building managers of the 16th to connect their collective heating systems to the network of the CPCU (Compagnie parisienne de chauffage urbain) which is fuelled by household waste incinerators,” André-Marie Bourlon, deputy director of Apur, told Le Figaro. Furthermore, under the Parisian Plan on Climate Change adopted last October, this network will shift to burning biomass in the coming years. Under the Plan Climat for Paris, greenhouse gas emissions will be cut by 30 percent between now and 2020, and 75 percent by 2050 compared with 2004.

In Paris, pre-Haussmann era buildings emit fewer greenhouse gases than those built during the 20th century, which use a lot of concrete and glass – materials which favour heat loss. The older buildings are usually heated individually by gas or electricity, allowing residents to control their own consumption. For instance, many single residents of studios in older buildings tend to turn off the heating during the night.

The study recommends a range of measures: insulation, in particular the replacement of windows (using low emission double glazing); the use of biomass in the Parisian municipal heating system, and education of municipal heating customers through the individualisation of charges.

via Le Figaro




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