Investor Rabo Ltd. from Kneževi Vinogradi at the end of August completed and put into operation solar pump station Rabo at 3 locations outside of the village Princes Vineyards, and whose works via the company Solar Projects Ltd. Osijek. The completion of the project and its commissioning realized the project's largest solar irrigation system in Europe.
The produced electricity is used to power pumps for irrigation of orchards. This existing irrigation technology which is based on the use of diesel fuel replaced with environmentally friendly technology. So far, the existing technology of irrigation and water transport – pokretanoj diesel generators – at these locations a year lasted for about 33 500 liters of diesel fuel, which is equivalent to 35,500 liters of heating oil. Construction of the solar pumping station was completed late last month, and all the works are placed in accordance with the design documentation and trade rules.
The plant consists of 363 photovoltaic modules arranged in three locations and that drives a total of 6 water pumps. The total peak power of the PV field is 90.75 kWp. The modules are placed at an angle of about 30 ° in respect to the ground and does not reflect the sunlight into the environment at any point. Built in the polycrystalline photovoltaic modules manufacturer Solvis, type SV60-250. Rated power embedded PV module is 250 W with peak performance of 15.27%.
The primary objective of this project was to replace the primary energy source for irrigation (diesel fuel) with environmentally friendly energy source (sun), and the purpose of producing electricity that will be used to power pumps for irrigation. To this end, worked out the replacement of water pumps with more efficient and adapted to drive the solar energy and the installation of photovoltaic modules to power the water pumps.
At the plant Rabo I have before the procedure included in this project existed of 4 submersible water pumps that were in the wells. Water pumps were in alternating performances and powered by diesel generators.
Purpose plants Rabo and the generation of electricity that powers the water pump which transports water from the water source to the lagoon where the water is stored. Expected production of electricity in one year is around 16.4 MWh, while the expected flow of the pump at maximum insolation in the period of the irrigation scheme is 22 m3 / h of water per pump. The use of plant and consists of 4 submersible pump to close locations, and each separately powered with associated photovoltaic field. The installation and the utilization of the agricultural land, and each of the photovoltaic system 4 is divided into three series of four PV modules with photovoltaic modules per string. A total of 12 built-in photovoltaic modules per system, or a total of 48 used photovoltaic modules with a total peak power of 12 kWp photovoltaic field.
At the plant Rabo II before the procedure covered by this project was built one water pump which was under a protective canopy. The water pump has been in alternating performances and powered by diesel generators.
Purpose plants Rabo II generation of electricity that drives the water pump which transports water from the lagoon to the reservoir. Expected production of electricity in one year is about 42 MWh, while the expected flow of the pump at maximum insolation amounts to 111 m3 / h of water. The plant Rabo II consists of one pump. The use of plant II is located on agricultural land, photovoltaic field is divided into 6 rows of photovoltaic modules with 21 photovoltaic modules per string. Total is installed 126 photovoltaic modules with a total peak power of 31.5 kWp photovoltaic field.
At the plant Rabo III before the procedure covered by this project was built one water pump which was located in the immediate vicinity of the reservoir. The water pump has been in alternating performances and powered by diesel generators.
Purpose plants Rabo III generation of electricity that powers the water pump which transports water from the reservoir to agricultural areas that are irrigated. Expected production of electricity in one year is around 64.8 MWh, while the expected flow of the pump at maximum insolation amounts to 222 m3 / h of water. The plant Rabo III consists of one pump. The plant Rabo III be located on agricultural land, photovoltaic field is divided into 9 rows of photovoltaic modules with 21 photovoltaic modules per string. Total is installed 189 photovoltaic modules with a total peak power photovoltaic array 47,25 kWp.
The construction for mounting the photovoltaic module is made of steel and partly of aluminum. Were used screw based manufacturer Krinner this type construction for the installation of PV modules on land.
The planned procedure of replacing diesel engines with generators driven by solar energy is planned to cover the consumption of diesel fuel in the equivalent of 207.021 MWh of electricity sun, or solar modules to cover the needs of the 62.70% of the electricity needs. Diesel generators will be used as an auxiliary power system water pumps. Total consumption of diesel fuel after installing the new system, water pumps and a photovoltaic system is the equivalent of 123.2 MWh of electricity.
Production of electricity from renewable energy sources reduces CO2 emissions directly and indirectly, and also is promoting alternative energy sources. By using the present, the irrigation system is producing about 64.18 tons of CO2 per year. After the installation of solar power plants, planned savings of CO2 is 48.44 tons per year and the estimate is that the system will in future broadcast around 15.74 tonnes of CO2 per year.1 comment