Identifying the Conditions of Maximum Electricity Demand Coverage in a Direct Mode, by Wind and Photovoltaic sources
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COMENDANT, Ion, DUPLEVA (PREPELIŢA), Iulia, TURCUMAN, Lilia. Identifying the Conditions of Maximum Electricity Demand Coverage in a Direct Mode, by Wind and Photovoltaic sources. In: International Conference on Modern Power Systems, 16-17 iunie 2021, Cluj-Napoca. New Jersey, SUA: Institute of Electrical and Electronics Engineers Inc., 2021, Ediția a 9-a, p. 0. ISBN 978-166543381-5. DOI: https://doi.org/10.1109/MPS52805.2021.9492533
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International Conference on Modern Power Systems
Ediția a 9-a, 2021
Conferința "9th International Conference on Modern Power Systems"
Cluj-Napoca, Romania, 16-17 iunie 2021

Identifying the Conditions of Maximum Electricity Demand Coverage in a Direct Mode, by Wind and Photovoltaic sources

DOI:https://doi.org/10.1109/MPS52805.2021.9492533

Pag. 0-0

Comendant Ion, Dupleva (Prepeliţa) Iulia, Turcuman Lilia
 
Institute of Power Engineering
 
Proiecte:
 
Disponibil în IBN: 24 august 2021


Rezumat

To reach the objectives of energy security and updated NDC targets, 100% RES scenario is considered for the R. Moldova. The specific goal of this study is to identify the conditions under which a maximum coverage of the annual electricity demand can be obtained directly from WF+PV sources. Two approaches are used to reach the goal: WF and PV cover energy demand in a direct mode without considering the balancing power-Technical Weight, and second, WF and PV cover the demand in a direct mode together with a source of balancing power-Gas turbine (GT)-Economic Weight. The results obtained: When the capacities of WF and PV are determined in a way to produce electricity equal to annual power demand, Technical Weight is equal to a maximum of 71-72%. If WF and PV electricity produced is higher than demand by 50%, WF+PV tandem may cover the energy demand in a direct mode at maximum level of 80.5%. Five variants of WF, PV and GT economic parameters variation were considered when these sources are operating together. The calculations done and analysis performed showed that: The minimum price of electricity produced by WF+PV+GT in Vl (basic variant, current data) takes place at a PV integration level of lS% (Zopt). At WF specific investment of 750/kW (V2), compared to 1445/kW in Vl, Zopt is equal to zero. That is, at such WF specific investment, PV implementation is not feasible. Price for electricity is lower than in Vl by 25.4%. Even at a specific investment of about 1000/kW for WF, the minimum energy price is obtained in the absence of PV. Decreasing PV specific investment by up to 50% (V3) compared to the level established in Vl has little influence on the maximum Technical Weight. The electricity price is lower than in Vl by circa S%. A 25% decline in TG specific investments (V4), or a 17% drop in the price for natural gas (V5) compared to Vl, have no material effect on the maximum Technical Weight.

Cuvinte-cheie
wind farms, photovoltaic sources, power demand, balancing power, renewable power supply

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<dc:creator>Comendant, I.T.</dc:creator>
<dc:creator>Dupleva (Prepeliţa), I.M.</dc:creator>
<dc:creator>Turcuman, L.V.</dc:creator>
<dc:date>2021</dc:date>
<dc:description xml:lang='en'><p>To reach the objectives of energy security and updated NDC targets, 100% RES scenario is considered for the R. Moldova. The specific goal of this study is to identify the conditions under which a maximum coverage of the annual electricity demand can be obtained directly from WF+PV sources. Two approaches are used to reach the goal: WF and PV cover energy demand in a direct mode without considering the balancing power-Technical Weight, and second, WF and PV cover the demand in a direct mode together with a source of balancing power-Gas turbine (GT)-Economic Weight. The results obtained: When the capacities of WF and PV are determined in a way to produce electricity equal to annual power demand, Technical Weight is equal to a maximum of 71-72%. If WF and PV electricity produced is higher than demand by 50%, WF+PV tandem may cover the energy demand in a direct mode at maximum level of 80.5%. Five variants of WF, PV and GT economic parameters variation were considered when these sources are operating together. The calculations done and analysis performed showed that: The minimum price of electricity produced by WF+PV+GT in Vl (basic variant, current data) takes place at a PV integration level of lS% (Zopt). At WF specific investment of 750/kW (V2), compared to 1445/kW in Vl, Zopt is equal to zero. That is, at such WF specific investment, PV implementation is not feasible. Price for electricity is lower than in Vl by 25.4%. Even at a specific investment of about 1000/kW for WF, the minimum energy price is obtained in the absence of PV. Decreasing PV specific investment by up to 50% (V3) compared to the level established in Vl has little influence on the maximum Technical Weight. The electricity price is lower than in Vl by circa S%. A 25% decline in TG specific investments (V4), or a 17% drop in the price for natural gas (V5) compared to Vl, have no material effect on the maximum Technical Weight.</p></dc:description>
<dc:source>International Conference on Modern Power Systems (Ediția a 9-a) 0-0</dc:source>
<dc:subject>wind farms</dc:subject>
<dc:subject>photovoltaic sources</dc:subject>
<dc:subject>power demand</dc:subject>
<dc:subject>balancing power</dc:subject>
<dc:subject>renewable power supply</dc:subject>
<dc:title>Identifying the Conditions of Maximum Electricity Demand Coverage in a Direct Mode, by Wind and Photovoltaic sources</dc:title>
<dc:type>info:eu-repo/semantics/article</dc:type>
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