Successful cooperation projects

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To Partners / Collaborative Projects

Estonian Business and Innovation Agency funds Eesti Energia´s project to optimize the charging of electric vehicles in ensuring the frequency of the electric grid (EV-FLEX)

As a result of this project Eesti Energia wants to develop a technical solution and a service based on it which enables the use of electric chargers as flexibility assets, in other words make chargers work as a part of the electrical system while benefiting the vehicle owner.

In the frame of this project Eesti Energia aims to study how and how much is it possible to stabilize the frequency of power grid by regulating charging of electric cars:

  • We conduct a study in cooperation with a research and development partner to forecast the need to maintain the electricity grid frequency market and find out the impact of electric vehicle chargers.
  • We will create the algortihms for charging schedules.
  • Study about charging patterns and simultaneity factor to achieve 1 MW of electricity power that can be controlled to regulate grid frequenzy.
  • We will validate the value proposition of this service.
  • The project contributes to the further development of the already existing charging service Enefit VOLT.

    Volt home charger on a wall

    The project is supported with 444,094.18 euros from state budget funds by Ministry of Economic Affairs and Communications

    Conceptual engineering design of the wind farm

    The analysis of the technical solutions for the wind farm in the Gulf of Riga is planned to be completed by the end of 2022. The conseptual design is being prepared by an international engineering and consulting company with many years of experience – BLIX Consultancy. As a result of the analysis, the solution for the wind farm will not be definitively established, but solutions will be proposed that are technically feasible and possible considering the environment. This information is important for developers, authorities and partners.

    BLIX Consultancy is analyzing solutions for various wind turbines, foundations, substations and ground facilities. The developed technical solution will also be used as input for the environmental impact assessment.

    The preparation of the project is co-financed by the European Union.

    Eesti Energia is conducting studies to prepare the construction of a pumped-storage hydroelectric power plant

    The pumped-storage hydroelectric power plant (PSH) planned for the industrial area of Estonia Mine in Ida-Virumaa is a large-scale circular economy project, the construction of which takes advantage of mining residue and closed mining tunnels created during oil shale mining. The plant acts as a powerful storage unit, helping to ensure energy security and stability of the power network when launched.

    Eesti Energia´s project, which is co-funded by Estonian Business and Innovation Agency, intends to conduct studies for develop under- and upperground infrastructure as well as prepare pre-FEED and FEED.

    According to Eesti Energia, neither oil shale nor coal mines have ever served as water reservoirs for hydroelectric power plants, which makes the project innovative. In addition, it is unique that the pressure height of the PSH plant, i.e. the height between the upper and lower water reservoirs, is increased by reusing waste rock from the enrichment process of rock mass from oil shale mining.

    The project is supported with 584 950,00 euros from state budget funds by Ministry of Economic Affairs and Communications.

    Eesti Energia helps make three apartment buildings in Annelinn energy efficient

    Eesti Energia will install storage devices and electric car chargers in three nine-storey apartment buildings in Annelinn and connect them with a flexible energy management solution, which helps make the buildings energy efficient.

    The solutions will be installed as part of a project led by the City of Tartu called Open Lab, during which the apartment buildings will be fully renovated. Premanufactured panels will be used in the renovation. The buildings will receive solar stations, a heat storage device, smart home solutions, and the public spaces surrounding the apartment buildings will be fixed up.

    Eesti Energia has three objectives in this project:
  • to manage renewable energy so that own consumption is maximised by means of storage devices;
  • to install nine smart electric car chargers;
  • to participate in flexibility markets with the resources related to the building.
  • The potential of innovative solutions in Estonia is great. In accordance with the long-term strategy of Estonia for the reconstruction of buildings, 14,000 apartment buildings will have to be reconstructed to at least energy class C over the next 30 years, 22% of them, i.e. more than 3000 already by 2030.

    In the course of the Open Lab project, the apartment buildings of Tartu will be renovated in cooperation with the City of Tartu, the Institute of Baltic Studies, the Tartu Regional Energy Agency, the University of Tartu, TalTech, Gren and Eesti Energia. The Open Lab project (Open innovation living labs for Positive Energy Neighbourhoods) is funded by the European Commission through the Horizon 2020 Green Deal. The City of Pamplona in Spain and the City of Genk in Belgium are also participating in the project. The total cost of the project is 5.5 million euros. The budget of Eesti Energia is around 300,000 euros.

    The consortium includes 33 parties, seven of whom are working on the Tartu Annelinn project. Renovation will begin in 2023 and end in late 2025. The grant agreement number of the project is 101037080.

    This project has received funding from the European Union's Horizon 2020 Research and Innovation Programme under grant agreement No. 101037080.

    Eesti Energia will participate in a major Europe-wide electric car project

    Eesti Energia will be participating in a major Europe-wide electric car project aiming to develop user-centric and innovative next-generation charging solutions. The project will begin in 2020 under the leadership of Renault and will end at the end of 2023. The budget of the development project is EUR 19 million, of which the European Union will cover EUR 15 million. The project will have 33 partners across Europe (France, Netherlands, Italy, Estonia, Germany, etc.). Funded by Horizon 2020, the project aims to test and identify the best possible charging solutions for electric cars.

    During the project, Eesti Energia will install ultra-rapid chargers for electric cars in the vicinity of Tallinn, with the capacity to stabilize the power network. Eesti Energia will be developing charging solutions for private and commercial users of electric cars to provide simple, convenient and useful charging services that will also support the highest possible quality of electrical connection anywhere in the network.

    The project has received funding from the European Union 's Research and Innovation Program, Horizon 2020, under Grant Agreement 875683.

    Applied study to decrease the sulphur compounds in shale oil products

    Enefit is starting cooperation wih TalTech to find solutions for reducing sulphur content in the oil products by studying the pyrolysis process parameters and the effect of possible additives to the sulphur content in different fractions. After an application plan will be made for the chosen technological application in the Enefit280.

    Main goals:
  • Report on results of the identification and classification of sulphur compounds in the shale oil. Also, possible reaction paths for removing sulphur from the shale oil fractions.
  • Subject to the analysis results a proposal will be made for modification of the pyrolysis parameters and inclusion of additives for further analysis.
  • Preparation of the application plan for the most suitable technological adaptation in Enefit's oil plants.
  • As a result, an input will be received for further development of shale oil products. It will contribute to Enefit's products competitiveness and continued production.
  • The project has received EUR 211 500 of support from the European Union Regional Development Fund.

    Applied study for decreasing the CO2 footprint of the oil-winning process

    The aim of the study is to find a best CCU/CCS technology for Enefit280 in cooperation with the technology providers and develop an application plan for the chosen technology with the break-even price of 50 EUR/t.

    TA partner sees Oxyfuel technology as a very potential candidate and aims to conduct a thorough investigation into this technology. This is subject to the condition that all the other potential technologies are considered equally. Based on the finding of technology analysis the focus will be adjusted.

    Main goals:
  • Oil-winning industry CO2 analysis.
  • Enefit280 suitability assessment of the globally applied and studied CCS/CCU technologies.
  • Development of further testing and research plan to validate the suitability of most promising technologies.
  • Application plan to introduce an industrial scale operation.
  • The project has received EUR 200 000 of support from the European Union Regional Development Fund.

    Study of ways to improve the efficiency of mine survey operations through remote monitoring methods

    Eesti Energia has modernised its mining technologies and made a number of innovations to make operations more efficient and environmentally friendly. However, this has significantly increased the volume and complexity of mine survey operations.

    Together with Tallinn University of Technology, we are conducting an applied research project to develop a metering and analysis method using semi- and fully automated remote monitoring solutions, which will make mine survey operations safer. In addition, modern metering technologies would increase productivity and reduce losses.

    The main objectives of the project are:
  • to develop the most suitable, reliable and efficient set of tools and equipment for mine survey operations for the renewed technologies of Estonian oil shale mines;
  • to develop the most reliable and efficient metering methodology for measuring the volume of mineral resources extracted;
  • to propose the necessary software developments for the processing of data and calculation of volumes of the new metering methodology.
  • The project has received EUR 42,764 of support from the European Union Regional Development Fund.

    Study of the enrichment possibilities of the mining mass originating from lava complex

    In the context of ever-stricter environmental standards and ever-increasing environmental charges, Eesti Energia is looking for solutions to reduce its environmental impact and improve its oil shale valorisation processes.

    The study, conducted in cooperation with the Mining Department of the Institute of Geology at TUT, will help Eesti Energia to select enrichment technologies and evaluate their profitability in a smarter way. The project contributes to a more efficient use of oil shale and helps to reduce specific emissions and waste (waste rock, ash, COx, NOx, SOx).

    The main objectives of the project are:
  • To create a calculation model to predict the quality and yield of the enrichment process;
  • To develop an oil shale enrichment scheme suitable for the enrichment of the ore from longwall mining in the selected mining field according to the quality requirements of the consumer (fuel efficiency, particle size, humidity);
  • To choose the optimal enrichment scheme (equipment selection) according to output quality requirements and ore characteristics.
  • The project has received EUR 62,100 of support from the European Union Regional Development Fund.

    Study of the relationship between the sulphur content of oil shale and the properties of shale oil

    Eesti Energia produces approximately 400,000 tons of shale oil per year, which is consumed by heat producers, energy companies, manufacturers and sellers of marine fuels, road builders, agricultural producers and other companies. Essentially, shale oil is synthetic petroleum that needs to be heated without air to obtain it. This process is known as pyrolysis.

    Our shale oil is characterised by low sulphur content. Further reduction of the sulphur content will allow the competitiveness of shale oil to be even more enhanced. As sulphur gets into oil from oil shale, we have started to study, in cooperation with the University of Tartu, the relationship between the amount and forms of sulphur in oil shale and the quality of oil produced from oil shale. By studying the behaviour of oil shale sulphur in the pyrolysis process, we hope to find solutions that will enable more targeted planning of oil shale mining and use in the future.

    The main objectives of the project are:
  • to clarify whether shale oil with variable sulphur contents affects the characteristics of shale oil;
  • to assess whether selective mining can reduce unwanted impurities in shale oil without refining it;
  • to offer opportunities for more targeted planning of oil shale mining and use.
  • The project has received EUR 56,954 of support from the European Union Regional Development Fund.

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