Output 5.1.2 Carbon emissions database for Prague 11 Metropolitan District
The carbon emission database continues the heat loss classification for part of Prague 11 district.
Heat loss classification was made for 360 buildings in chosen area. Almost all building are
connected on the district heating, several smaller houses in the south-east has a gas boilers. The
heat in the district heating system is produced in the coal combusting electric power station in town
Melnik 30 km far from Prague.
For chosen area is specific, that most of building was built in the similar time and similar
technology. Some building has been renovated, so it would be possible to compare them with no
renovated ones. The data was forwarded to the project partners for further processing, input to the
energy model and incorporation into the Carbon Emission Database on the EnergyCity website.
A carbon emission database was created based on the heat loss classification in Prague 11, but
only for 27 building in the meantime. For each building included in the data set described above,
the following attributes are provided:

ID

Street name

Main function

Type of fuel or source of energy

Heat loss class

Construction period

Building type

Specific primary heating energy consumption

Total primary heating energy consumption

Specific CO2 emissions

Total CO2 emissions.
Heat loss analysis for Prague 11
Graph 1 shows the distribution of heat loss classes for 360 building in chosen area. The 27
buildings were chosen, because was known enough possible information for them. There was
usually after some renovation, because is none of it in heat class 5
Graph 1: Distribution of heat loss classes in chosen area – 360 buildings
Graph 2: Distribution of heat loss classes in 27 buildings under consideration
Carbon emissions analysis of the Prague 11
Sums of the values for Specific primary heating energy consumption, Total primary heating energy
consumption, Specific CO2 emissions and Total CO2 emissions were calculated and percentages of
the values were determined. The results are shown in graph 3.
Graph 3: Percentages of the energy consumption and emission values per heat loss class for 27
chosen buildings
Conclusions
The main part of production CO2 is in the heat class 3 and 4. For the heat class 5 is the fastest
investment return and the decreasing specific CO2 emission in case of renovation. The
assessment in addition shows that complete renovations usually move the buildings to heat class 1
and partial renovations move the building to next better heat class.
It is necessary to continue in work with the Carbon Emission Database, to open it for adding and
updating data. It would be compare the results with real consumption.