Recent Progress in Case Studies of WP 5

In 25.04 and 26.04 a workshop of WP 5 was held in the town of Elva, the subject of the Estonian Case Study. The second day of the workshop concentrated on the Case Studies and their progress.

As it turned out, all the respective PP-s had chosen very different regions and methods for the Study. For Estonia, a best practice example, the town of Elva, was chosen, whereas Latvian PP-s decided to help in solving the problems of Alūksne district heating and Beverina region heating systems. While Ekodoma, the company responsible for the two Case Studies conducted in Latvia and Estonian University of Life Sciences in cooperation with Hendrikson & Co mainly use spreadsheet-based calculations for system analysis, the PP-s from Sweden decided to use an energy system optimisation model called MODEST for getting the results. At least we in the University of Life Sciences will be looking forward to the results of all the regions.

As follows, a short overview of the Case Study of the District Heating in Elva will be given.

The Case Study of Elva has reached it’s final stage, as all the inputs for the environmental and economical calculations have been given. The final report will be finalized in May, as there might be a need for small improvements to be made. The results show that thanks to making an investment of 2,26 MEUR into the renovation of all the boiler houses and district heating pipelines, the town has been able to keep the prices of heat energy reasonably low (56,56 €/MWh + VAT), while reducing the losses of DH network to 10%, which considering a 40% heat energy reduction in housing and public sector and 10% reduction in industry and services sector by 2025, will still only be 13% – way below the requirement of 15% by 2017.

Although the economical analysis of the future scenarios, which were made for analysing different scenarios for constructing a CHP plant to Elva, is yet to be completed, the environmental report is nearly done and will show, how much a transition from fossil fuels (in this case shale oil) to biofuels (woodchips) has reduced emissions to the environment. Detailed report will be published on the Wood Energy and Cleantech project website, as soon as it is completed.

Jaanus Uiga

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