![Average energy used in year 2021 Report - energy bookkeeping of a public building - Municipality of Ptuj](/sites/default/files/styles/banner_image/public/paragraph_image_100/knj.jpg?itok=Tmxeab6G)
Energy bookkeeping
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About this good practice
This is an effective tool for analyzing energy use after already implemented measures and a starting point for further planning of energy efficiency measures.
Resources needed
The database owner is Ministry of Infrastructure and financing is coming from Republic of Slovenia.
The costs for establishing energy database are rather high, but could be supported with funds from EU. Also the human resources are high, specially when establishing the database.
Evidence of success
The aim of data collection is to increase energy efficiency and the use of RES in buildings used by public sector entities.
Energy bookkeeping enables:
-monitoring of energy use and other energy and environmental indicators of the building
-monitoring the cost of energy consumed in the building
-identifying deviations of actual energy consumption from expected and identifying the causes
-collecting data on the building and installed energy systems in one place.
Potential for learning or transfer
The energy database is crucial in monitoring of energy consumption in public buildings after implementing the energy efficacy and renewable energy sources measures. This is most important if the measures were financed or co-financed from state or cohesion funds, or any other funding system.
On the other hand, the database helps to plan new investments in energy efficiency, help to see where and who are the main energy consumers and helps to determinate measures needed to reduce the energy.
Only with energy bookkeeping to costs for energy can reduce from 5 to 15 %(no investment needed). And on the other hand, it is the baseline for further energy planning and management.