• Slovene
  • English (UK)

Informing the population about the potential savings of thermal energy

Between April and July 2006 Association for Ecological and Leisure Activities ZOJA a project entitled "Informing the population about the potential savings of thermal energy”.

The aim of the project was to inform users about more effective use of thermal energy and to inform them about the possibilities of introducing individual measurement of heat energy. In the project there were presented the advantages and the nature of such methods of calculation, possible technological solutions and the estimated investment costs.

The aim of the project was also to increase the number of customers opting for individual measurement of heat energy. During implementation of the project there were between 30% and 40% such customers in the area of a town Ptuj. With the increase of their number it is expected reduction in thermal energy consumption and thereby reduce emissions of greenhouse gases into the atmosphere. These activities are part of the implementation of the provisions of the Kyoto Protocol on the reduced release of greenhouse gases into the atmosphere. It is expected that the consumption of energy and consequently the emissions of greenhouse gases, especially CO2 decreased by 15% in the next three years.

The starting point of the project was to reduce the consumption of thermal energy, which for target public meant reducing of costs, while for the general public and the environment reduction of CO2 emissions. This project represented a starting point for the further measures of efficient energy use. With the knowledge that certain measures could reduce the consumption of thermal energy it could be expected in the future to increase the implementation of the other measures of efficient use of energy as such increased implementation of insulation for windows, spaces, facades, the use of higher quality glazing, replacing windows etc. One of the clues pointing to that is an increased number of replacements of the regulative valves within apartments, where they switched over to individual measuring of heat energy. Major part of valves at all wasn’t being used before this change.

One of the purposes of the project was to increase the access of supplier of thermal energy to end users. Currently there is some distrust on the part of consumers. A broader set of projects (all users of district heating) and more participants (Association Zoja, P) would increase consumer confidence which in turn would lead to a larger number of consumers who would opt for individual measuring of heat energy.

This project has been carried out in several stages:

1 Identification of potential participants and preparation of the text leaflets and posters. With the P, PC heat supply, it was needed to determine the users who would participate in the project and to align the content of leaflets and posters, and forward the implementation of the project.

2Production of leaflets and posters and informing of population

Cooperation with manufacturers of leaflets and posters
• Distribution of leaflets at the addresses of all participants in the project (Ptuj and Kidričevo). Also, the posters were hanged in all blocks of flats, and the invitation for public presentation of the project was published in the newspaper “Štajerski tednik” and at Radio Ptuj.

  The leaflet “Heating
saving

3 Public presentation of the project with a lecture

  • Presentation of the project was on 28 June at 6 pm in the Hall of the High School Ptuj. It was comprised of two parts. The first part of the presentation was prepared by the Association of Zoja. Power Point presentation of the project was presented as an annex to the report on the realization of the project. Participants also received information about the possibilities offered in the case of investment or other planned actions regarding energy efficiency or renewable energy sources (information relating to the Agency for Efficient Use of Energy-AURE- and Slovenian Ecological Fund).

  • The second part of the presentation was devoted to the presentation of concrete examples. The representative of the P presented the legal, technical and commercial conditions for installation of meters or. dividers for the needs of the individual measurements of the thermal energy or. measurement of heat energy according to actual consumption. He also presented success to date in the implementation of such an approach which is presented below.

1

2

3

4

5

Address of the dispensing site

Heated surface in m2

Consumption of thermal energy in MWh 

  

2004/2005

kWh/m2

index

Rimska ploščad 1,2,3,4,5

4.226,37

484,70

114,69

94,74

Rimska ploščad 5,6,7,8,9,10

4.284,50

577,05

134,68

111,25

Rimska ploščad 11,12,13,14,15

4.220,02

427,41

101,28

83,66

Rimska ploščad 16,17,18,19,20

4.251,75

505,24

118,90

98,22

Rimska ploščad 21,22,23

2.578,35

330,80

128,30

105,98

Kraigherjeva 15,17,19,21 in Prekomorska 6,7

5.082,47

692,74

136,30

112,59

Kraigherjeva 14,16,18,20 in Prekomorska 1,3

5.951,92

602,62

101,25

83,63

Kraigherejeva 23,25,27,29,31

5.140,62

626,94

121,96

100,74

Kraigherjeva 22,24,26,28,30

5.919,27

782,34

132,18

109,19

 TOTAL

 41.655,27

 5.030,27

 121,06

 100,00

Table 1: A comparative table of heat consumption in Ptuj-1

Tables 1 and 2 present a comparative tables of heat consumption in multi-apartment houses with and without built-in dividers of heat in the municipality of Ptuj. Column 4 shows the average heat consumption per square meter of heated area for each object. Residences respectively blocks of flats with built-in instruments for measuring the actual consumption of thermal energy are marked darker in the tables. It is visible that the average consumption of heat per square meter in the buildings with built-in instruments is smaller of that without built-in instruments. Column 5 represents the ratio of heat consumed per m2 versus the common average of heat consumption per m2 in a certain .

For objects listed in Table 1 is total average consumption of 121.06 kWh / m2, for object listed in Table 2 of 124.38 kWh / m2. It is evident that in buildings with built-in instruments the index is between 5 and 15% lower than the average. This means that the percentage of savings is still greater than the difference of the index as it is calculated on an average consumption of heat, which already contains the heat consumption in buildings with built-in instruments. Also, the average savings per residence or. at the dispensing siteodjemnomesto are higher, because the information is provided for the entire block of flats. In most cases, however, not all users decide for the system of the individual measurements, but, on average, between 60 and 80% of the residents.

 1

2

3

4

5

Dispensing site

Heated surface in m2

Consumption of thermal energy in MWh

 

 

2004/2005

kWh/m2

Index

Kvedrova 1

1.539,82

218,64

141,99

114,6

Kvedrova 2

1.575,75

229,19

145,45

116,94

Kvedrova 3

1.574,49

163,71

103,98

83,60

Kvedrova 4

1.575,75

175,70

111,50

89,65

Kvedrova 5

1.589,05

189,06

118,98

95,66

TOTAL

7.854,86

976,30

124,38

100,00

Table 2: A comparative table of heat consumption in Ptuj-2:

  • the about potential savings of thermal energy (190Kb, pdf - Acrobat Reader)

  • Presentation of the project "Informing the population about the potential savings of thermal energy"(150Kb, ppt - PowerPoint Viewer)