PILOTS SNAPSHOTS IN PAKS
The pilot action is composed of two main parts:
1. Defining the energy performance and lavish points, leakages, malfunctions and wrongly planned or operated parts of the pilot buildings;
2. Designing and launching actions to make up these problems and reduce energy consumption also in general by eco-conscious behavior.
Both the first part and the second part consisted two different actions. To define the energy characteristics of the involved buildings, their energy flows had to be measured and compared in time and with other similar buildings. For this measurement the smart metering system was installed with an Energy Management Software. This investment was completed in all 11 pilot buildings of Paks in Sept 2017. Data is collected different ways depending on the energy source. In case of electricity, control meters have been installed right next to the billing meters, which are owned by the DSO an used for the official measurement of the consumption and issue the invoices in this basis. The control meters are smart meters with data transmission functions, they send the data to the server where the EMS software is running. The EMS analyses the consumption and creates reports upon requests. The consumption values and the consumption curves can be checked online and they are also projected by dashboards on the tablets installed at the 11 pilot buildings of the municipality. Gas is measured in slightly different way, as the gas meters were already available to transmit the signals, but the data was only collected by the DSO. In the frame of TOGETHER Paks has equipped these meters with wireless transmitters, which forward the consumption data to the server and the process from this point is the same as described at the electricity meters. Heat consumption is also measured at 4 buildings out of the 11 pilot sites. Heat consumption meters with wireless transmitters have been installed and providing consumption data for the server. Examples for the hardware used: district heating: Kamstrup 602, Kamstrup MC403; gas: MC602 transmitter + antenna added to existing DSO meter; electricity: ITRON ACE6000, Landis+Gyr E550, ACTARIS C114UR1D, ACTARIS SL7000, ITRON ACE3000, MC602 transmitters, OMNIPOWER 100/5 + antenna. The software was developed for energy management directly for the Municipality of Paks, already before the TOGETHER project. It was measuring the consumption of some public buildings, which are not involved into TOGETHER. The new meters of the current project have been integrated into this EMS, which is based on SAIA WEB system. The software measures heat consumption, gas consumption, electricity consumption and also water. It creates reports for periods defined by the users and also analyses the consumption in order to provide the possibility to decide what electric capacity and gas capacity is necessary at the measured buildings. Data is transmitted by wireless transmitters. Optical data reading is also possible.Dashboards are located in each measured buildings, usually at the entrance in order to reach the maximum possible number of persons in the building. The dashboards show the current consumption measured by the meters of the buildings (It differs from building to building: electricity is measured in all buildings, but at some buildings gas or heat consumption is also measured.). Curves of different time periods can be also visualized. The dashboards are not interactive. Once the baseline consumption data was available, we had to define where are the lavish usage points and inefficient parts of the buildings. Therefore official energy certifications have been conducted at each pilot buildings, defining the current energy category of the building, the suggested interventions (such as insulation of the building, installing solar panels on the roof) and the achievable energy category of the building. To analyse the suggested refurbishment activities’ feasibility, 3D modelling was used with a special software (ArchiCAD). The investment needs were visualized this way for the decision makers. The identification of the necessary investments – that will be able to gain the highest cuts on energy consumption – have been followed by the demand side management actions. These actions compose the essence of the project: to show people that investments are not enough (and sometimes not possible due to financial or legal reasons) to reduce energy consumption, the participation of all building users are inevitably important and required. Therefore Municipaity of Paks organized bilateral discussions with the building managers, printed 2800 stickers for switches and taps, 60 posters in 3 versions for awareness raising, 5000 pieces of A5 leaflets with energy saving possibilities for building users, and several A3 posters that describe the functioning of smart metering and energy management. Besides, company newsletters were planned and the project’s findings have been integrated into the education of the Energetic Secondary School. The measurement of the results of these activities are ongoing, and will be used in the documents of WP T4 of the project, especially at the D.T4.3.2 Local reinvestment plans connected to pilot buildings, that will provide guidelines how to reinvest at least 20% of the savings achieved by the energy efficiency actions of the pilot buildings.