The second annual report of the project „Web2Energy“ to the EC resulted in „EXCELLENT“

The project team Web2Energy reported on 27th March 2012 to the representatives of the European Commission and the reviewers from the United Kingdom and Romania about the task realization during the second project period in 2011. Furthermore, the implementations of new solutions at the W2E control centre and the storage battery 100 kWh could be demonstrated at the meeting location.

The second year was the most significant period for the project. 4 complete work packages had to be finalized coordinated by a successful project management:

1. Application of the IEC 61850 standard for the whole communication system
2. Design und Architecture of the Information- and Communication Systems
3. W2E – Control centre based on CIM – data face (Common Information model in
    accordance with IEC 61968/70)
4. Installation of the innovative solution components and preparation of the trial
    operation.

12 different specification and description documents were delivered in time and good quality beginning from the integration of smart meters into the IEC 61850 communication system via the specification of the especially developed remote terminal unit RTU (Figure1) and the control centre for the 3 pillars of Smart Distribution (Figure 2) up to the intensive multi-step test programs for the new intelligent electronic devices and the overall system.

Fig. 1 The W2E RTU and their interfaces    Fig. 2 The icons of the pillar domains and the access menus

The specification of the data model extensions for applying IEC 61850 in the distribution networks was one of the mandatory home works of the project. Of course, the application of IEC 61850 in the distribution level closes the loop: In the future there will be applied a uniform communication from the socket of the consumers up to the transmission system control centre how it is presented in Figure 3. This will lead to a more efficient engineering of such large systems and lowers the risk of inconsistencies.

With this the project creates an important impact for the international standardization of communication in power systems. 

Fig. 3. Seamless communication at all levels of the power system


The consortium team could proudly announce that all tasks of the period were solved in a high quality despite of problems caused by externally obtained software components.

Especial attention was directed by the reviewers to the observability and controllability of a big number of distributed generation units and storage batteries in the framework of the virtual power plant (VPP).

It was estimated that such a high volume of approvals of new solutions in the practice of distribution networks – at it is shown in Figure 4 – is first time realized worldwide. It builds an important basic for the prospective dissemination of the innovations for “Smart Distribution”.

Fig.4. Integration of the Smart Grid – Components within the Web2Energy – Project

The innovative character of newly developed and approved solutions can be expressed by the worldwide interest on our results with:

  • 51.300 visits of our Web portal www.web2energy.com,
  • 62 contributions in Journals and on conferences worldwide,
  • 3 presentations in the German television
  • 3 interviews in German radio stations

One part of the project was started in advance compared to the project plan for the reason to achieve a longer duration for result analyses: Since August 2011 about 200 household consumers are equipped with smart meters. Each consumer receives day ahead via Web portal or mobile phone a forecast of red and green traffic lights for time intervals (Figure 5).

Fig.  5a: Screen of the consumer portal                          5b. SMS message of phases
               www.web2energy.com

The traffic light zones are performed by the VPP reflecting a combination of the forecasts of the electricity prices on the spot market EEX and of the intensity of wind and sun shine. During the green intervals a higher demand and in the red intervals a lower demand compared to a reference profile will be honored.
During the first three month of data collection the observed energy savings reached in the average 3% of the daily consumption of the households. In addition, the reduction of the daily load peak achieved approx. 15% by shifting intensive demand from the red into the green phases. Some of the families are strictly watching and responding to the red and green phases each day.

The reviewers and the EC representatives were very interested and satisfied after the result considerations. Our project coach, Patricia Arsene, first time evaluated the status of our project with “excellent”. This gives the project team the motivation to perform the concluding project tasks

  • Continuous trial operation of the system with the 3 pillars accordingly Fig. 4,
  • Public presentation event,
  • Analysis of benefits and recommendations for further dissemination of the innovations

with engagement to reach a high quality.

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