Päikesepaneelide investeeringu teostatavuse hinnang 300 hektariga teraviljakasvatusettevõttes
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Kuupäev
2026
Kättesaadavus
04.09.2026
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Taastuvenergia kasutamine on viimastel aastatel kiiresti kasvanud nii Eestis kui ka Euroopa Liidus, kuna energiahinna kõikumised ja kliimapoliitilised eesmärgid on suurendanud huvi alternatiivsete energialahenduste vastu. Põllumajandusettevõtete jaoks on energiakulude vähendamine oluline konkurentsivõime säilitamiseks ning päikeseenergia kasutamine pakub võimalust suurendada energiasõltumatust ja vähendada kulutusi elektrile.
Bakalaureusetöö eesmärk oli hinnata päikesepaneelide investeeringu teostatavust 300 hektariga teraviljakasvatusettevõttes. Töös kasutati ettevõtte elektritarbimise andmeid aastatest 2021-2025, päikesepargi hinnapakkumist ja tehnilisi parameetreid ning elektrihinna prognoosi. Koostati neli erinevat investeeringustsenaariumit, mille tasuvust hinnati diskonteeritud rahavoogude meetodil.
Töö tulemused näitasid, et analüüsi aluseks olnud tingimustel ei ole investeering majanduslikult tasuv ka siis kui ettevõte saaks päikesepargi rajamiseks toetust. Investeering muutus tasuvaks pikaajalises, 25-aastase perioodi vaates, kuid projekti sisemine tulumäär ületas ettevõtte nõutud tulunormi vaid vähesel määral. Pindala kasvu korral osutuks 14 kW süsteem laieneva tootmismahu jaoks ebapiisavaks, andes madalaimad tulemused. Tulemused viitavad sellele, et päikeseenergia kasutuselevõttu tuleb ettevõttes veel kaaluda ja hinnata võimalikke alternatiivseid lahendusi. Tehtud valik, et päikesepaneelid paigaldataks põllumajandusmaale rajamise asemel hoone katusele, ei õigustanud ennast süsteemi piiratud mahu tõttu. Investeeringu planeerimisel tuleb arvestada ettevõtte tegelikku energiatarbimise vajadust, kuna analüüsitud süsteemi tootmismaht ei olnud piisav ettevõtte elektrivajaduse katmiseks ega võimaldanud saavutada soovitud majanduslikku efektiivsust.
The use of renewable energy has grown rapidly in recent years both in Estonia and the European Union, as energy price fluctuations and climate policy goals have increased interest in alternative energy solutions. For agricultural enterprises, reducing energy costs is essential for maintaining competitiveness, and the use of solar energy offers an opportunity to increase energy independence and reduce electricity expenses. The aim of this bachelor's thesis was to assess the feasibility of an investment in solar panels for a grain farming enterprise with 300 hectares of land. The study utilized the company's electricity consumption data from 2021–2025, the solar park's price quotation and technical parameters, and electricity price forecasts. The profitability of the investment was evaluated using the discounted cash flow method across four distinct investment scenarios. The results of the thesis showed that under the analysed conditions, the investment is not economically viable, even if the company were to receive financial support for establishing the solar park. The investment became profitable under a long-term 25-year horizon; however, the project's internal rate of return exceeded the company's required threshold by only a narrow margin. In the scenario of acreage growth, the 14 kW system proved insufficient for the expanded production volume, yielding the weakest financial metrics. These findings suggest that the adoption of solar energy requires further consideration within the enterprise, alongside an evaluation of potential alternative solutions. The decision to install the solar panels on the roof of a building rather than on agricultural land was not justified due to the system's limited capacity. Future investment planning must account for the enterprise's actual energy demand, as the production capacity of the analysed system was insufficient to meet the company's electricity needs and failed to achieve the desired economic efficiency.
The use of renewable energy has grown rapidly in recent years both in Estonia and the European Union, as energy price fluctuations and climate policy goals have increased interest in alternative energy solutions. For agricultural enterprises, reducing energy costs is essential for maintaining competitiveness, and the use of solar energy offers an opportunity to increase energy independence and reduce electricity expenses. The aim of this bachelor's thesis was to assess the feasibility of an investment in solar panels for a grain farming enterprise with 300 hectares of land. The study utilized the company's electricity consumption data from 2021–2025, the solar park's price quotation and technical parameters, and electricity price forecasts. The profitability of the investment was evaluated using the discounted cash flow method across four distinct investment scenarios. The results of the thesis showed that under the analysed conditions, the investment is not economically viable, even if the company were to receive financial support for establishing the solar park. The investment became profitable under a long-term 25-year horizon; however, the project's internal rate of return exceeded the company's required threshold by only a narrow margin. In the scenario of acreage growth, the 14 kW system proved insufficient for the expanded production volume, yielding the weakest financial metrics. These findings suggest that the adoption of solar energy requires further consideration within the enterprise, alongside an evaluation of potential alternative solutions. The decision to install the solar panels on the roof of a building rather than on agricultural land was not justified due to the system's limited capacity. Future investment planning must account for the enterprise's actual energy demand, as the production capacity of the analysed system was insufficient to meet the company's electricity needs and failed to achieve the desired economic efficiency.
Kirjeldus
Bakalaureusetöö
Maamajandusliku ettevõtluse ja finantsjuhtimise õppekaval
Märksõnad
bakalaureusetööd, päikesepaneelid, taastuvenergia, investeeringud, tasuvusaeg, tootlikkus