Preko Pilot: Olive oil mill building and PV
The Municipality of Preko is a small island community situated on Preko Island. In 2015, the municipality adopted Strategy of Sustainable Development where one of the goals is long term energy efficiency and promotion of renewable energy.
- to prove feasibility as well as economic and environmental benefits of a microgrid solution using photovoltaics as RES;
- to develop a sustainable and applicable business model that can be transferred to other Croatian municipalities and EU regions;
- to overcome existing legal barriers.
The 10 kW photovoltaic panel installation on the roof top of the olive oil mill, serves as a RES in the Preko microgrid project. Photovoltaic panels provide the majority of electricity needed for the neighbouring building of „Pučko otvoreno učilište”. Currently both buildings are connected to the electrical grid and are owned by the Municipality of Preko.
The olive oil mill was built in the 60ties. Currently being used for the production of olive oil, it has an average monthly energy consumption of 300 kWh. It is important to mention the significant peak that occurs in the season of olive oil production; when the mill operates 24 hours, which is only for a couple of days, as current olive oil production in Preko is only 20 % of total capacity.
The building „Pučko otvoreno učilište“ was built in 1960 with a total net area of 385,23 m2. It is currently occupied by 4 different users; 3 public and 1 private. Each of the users has its own consumption meter installed. One office is used by „Pučko veleučilište“, the second is a Tourist board, the third user is multimedia hall which is used for various local events and the fourth is a privately owned cafe and bar. The building is connected to the local grid. As heating source during winter air conditioning units are used thus contributing to overall electrical energy consumption. Average annual energy consumption is 12.145,00 kWh with annual cost of 1.671,33 EUR, corresponding to annual CO2 emission from electric consumption of 2.8 t of CO2 per year.
Currently Preko pilot is in the final testing phase – metering devices were installed in November 2017 and metering started in late December 2017. Preko added the microgrid also as a part of Sustainable Energy and Climate Action Plan (SECAP).
Learn more about the PEGASUS project and its tests on microgrids HERE
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Fuente: FEDARENE
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