PV*SOL Expert 6.0 - Manual - Valentin Software

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4.5 Cabling Losses In order to calculate cabling losses, the cable resistance R is first calculated from the cable cross-section A, the cable length I and the specific resistance of the material: For copper, the specific resistance σ = 0.0175 Ω*mm²/ m. With Based on the output, the following applies for the relative dissipation: 22
4.6 Evaluation Parameters The input data to define the evaluation parameters are as follows: Ein = energy irradiated to the PV array surface EPVuse= solar energy generated (AC side) - inverter power consumption ELast = electricity requirement of power consumer Pnom = installed PV array output ηSTC = efficiency of module at STC 2 The solar fraction sets the usable photovoltaically generated energy (EPVuse) in relation to the load requirement (ELast). Solar fraction = EPVuse / ELast In grid connected operation, not just the energy used to meet the load but also the energy fed into the grid is part of the usable energy. As a result, the solar fraction can be more than 100 %. The specific annual yield is the usable energy (EPVuse) in relation to the installed output (Pnom). Specific annual yield = EPVuse / Pnom Put another way, the specific annual yield is a measure of the PV system's annual full load operation hours. The term final yield is frequently found in the literature in place of the specific annual yield. This is determined from the annual full load hours divided by 365 days and is a measure of the daily full load operation hours. Performance ratio = EPVuse / Ein * ηSTC The performance ratio is a measure of the energy losses in the system which occur in comparison with the energy output of the PV array under standard test conditions. The output under STC is determined by the energy irradiated to the PV array surface (Ein) multiplied by the module efficiency under STC (ηSTC). The performance ratio describes the efficiency of the photovoltaic energy which can be potentially generated in a given system environment. The system efficiency is a measure of the conversion of the total energy irradiated to the array surface (Ein) by the PV system. The system efficiency is made up of the efficiencies of the PV array and the inverter and takes into account cabling losses and battery losses. System efficiency = EPVuse / Ein 2 Standard test conditions: 1000 W/m² vertical radiation, 25 °C module temperature and radiation spectrum AM 1.5 23
Page 1 and 2: PV*SOL Expert 5.5 - Manual PV*SOL
Page 3 and 4: 1 Program Series PV*SOL The PV*SOL
Page 5 and 6: • New climate data from DWD (mete
Page 7 and 8: 3.2 Activation of the Programme Men
Page 9 and 10: 3.2.3 Request the Key Code Menu Hel
Page 11 and 12: 3.3 Licensing Provisions Menu Help
Page 13: 3.3.2 Maintenance agreement To make
Page 16 and 17: 4.1 Radiation Processor In the supp
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Page 20 and 21: 4.4 Temperature Model The temperatu
Page 22 and 23: 4.4.2 Dynamic temperature model Sol
Page 26 and 27: 4.7 Economic Efficiency Calculation
Page 28 and 29: 5 PV*SOL® Components The PV*SOL ®
Page 30 and 31: 6.1 User Interface (Menu, Tool Bar,
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Page 36 and 37: PV*SOL Expert 6.0 - Manual The load
Page 38 and 39: 7 File Menu Here you will find all
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Page 42 and 43: 7.2.2 Quick design of grid-connecte
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Page 46 and 47: 7.5 Save or Save As... File/Save sa
Page 48 and 49: 8 Conditions Menu Before a simulati
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Page 58 and 59: 9.4 Define an Appliance Page Consum
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10.1.2.6 Back-up generator (stand-a
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10.1.3.1 System Inverter System > T
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10.1.3.4 Losses through Feed-in Man
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10.1.6 Roof Parameters System (2d)
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10.1.6.2 Tree view System (2d) > Te
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10.1.6.5 Input Field The appearance
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10.1.6.6 Border Distances System (2
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10.1.6.7.1 New Roof Area System (2D
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10.1.6.7.3 New PV Area System (2D)
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10.1.6.8.1 Calculate the Optimum Ro
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10.1.6.9 Workflow Example for a PV
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10.1.7 Orientation System > Technic
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10.1.8 Losses 10.1.8.1 Losses at th
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10.1.8.2 Losses through Feed-in Man
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PV*SOL Expert 6.0 - Manual If the P
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PV*SOL Expert 6.0 - Manual Stand-Al
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10.1.10 System Diagram System > Tec
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PV*SOL Expert 6.0 - Manual b) or by
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11 Calculations Menu If the system
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11.2 Simulation Starts simulation o
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11.3.1 Economic Efficiency: Grid Co
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11.3.1.2.1 Define Output Losses Cal
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11.3.1.3.1 Investment Costs Click o
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11.3.1.3.3 Other Costs On this page
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11.3.1.3.5 Consumption Costs Here y
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11.3.1.4 Financing Number of Loans
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11.3.1.5 Tax In order for tax payme
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11.3.1.6.1 Graphics You are able to
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11.3.1.6.3 Report Here you are able
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11.3.2.1 Basic Parameters The follo
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11.3.2.3 Back-up Generator If a bac
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11.3.3 Results Overview The followi
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12 Results Menu With PV*SOL ® you
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12.2 Energy and Climate Data Presen
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PV*SOL Expert 6.0 - Manual 148 Chan
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12.2.3 Formatting the X-Axis In thi
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12.2.5 Printing Graphics The usual
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12.3 Income from Export to Utility
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PV*SOL Expert 6.0 - Manual -> See a
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12.6 Project Report The results of
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12.6.2 Detailed Project Report The
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12.6.4 Print dialog The standard pr
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12.7.1 Variant Comparison The proje
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PV*SOL Expert 6.0 - Manual No-Load
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13.2.2 Module Part Load Operation T
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PV*SOL Expert 6.0 - Manual The inpu
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13.2.4 Inverter - Stand-Alone Syste
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13.2.6 Battery (not available with
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13.2.7.1 Tariff Time Periods The hi
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PV*SOL Expert 6.0 - Manual On makin
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PV*SOL Expert 6.0 - Manual Output p
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13.2.7.3.1 Load Price This dialog i
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13.2.7.3.2 Heavy Load Periods The h
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13.2.7.4.1 Discounts General Discou
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13.2.7.4.2 Load Utilisation Period
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13.2.8 Feed-in Tariff Unlike the ot
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13.2.9 Pollutants You can define a
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13.2.11 Loans From here you can ent
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14.1 Paths... You are able to defin
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PV*SOL Expert 6.0 - Manual Update C
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14.2.2 Database Monitoring System W
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16 Help Menu Menu Help Contents ope
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PV*SOL Expert 6.0 - Manual Battery
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PV*SOL Expert 6.0 - Manual Own Cons
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PV*SOL Expert 6.0 - Manual Specific
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Inverter ..........................
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PV*SOL Expert 6.0 - Manual - Valentin Software

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