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<creators>
<creator>
<creatorName>Comendant, I.T.</creatorName>
<affiliation>Institutul de Energetica, Moldova, Republica</affiliation>
</creator>
<creator>
<creatorName>Dupleva (Prepeliţa), I.M.</creatorName>
<affiliation>Institutul de Energetica, Moldova, Republica</affiliation>
</creator>
<creator>
<creatorName>Turcuman, L.V.</creatorName>
<affiliation>Institutul de Energetica, Moldova, Republica</affiliation>
</creator>
</creators>
<titles>
<title xml:lang='en'>Identifying the Conditions of Maximum Electricity Demand Coverage in a Direct Mode, by Wind and Photovoltaic sources</title>
</titles>
<publisher>Instrumentul Bibliometric National</publisher>
<publicationYear>2021</publicationYear>
<relatedIdentifier relatedIdentifierType='ISBN' relationType='IsPartOf'>978-166543381-5</relatedIdentifier>
<subjects>
<subject>wind farms</subject>
<subject>photovoltaic sources</subject>
<subject>power demand</subject>
<subject>balancing power</subject>
<subject>renewable power supply</subject>
</subjects>
<dates>
<date dateType='Issued'>2021</date>
</dates>
<resourceType resourceTypeGeneral='Text'>Conference Paper</resourceType>
<descriptions>
<description xml:lang='en' descriptionType='Abstract'><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></description>
</descriptions>
</resource>