SPR Assay:Article Title: Design of a Stand-Alone Roof-Top Photovoltaic System for a Residence in Zamfara State, Nigeria
Article Snippet: Required Information from the Solar Module: Sunpower SPR-E19-320, Vmp = 36V, Imp = 8.34A, Isc = 8.83A, dimension (LxB) = 1940mm x 992mm System Voltage (Vdc) = 48V Average Sun-hours for Zamfara (Tsh) = 6.1 hour per day (Innocent, Jacob, Chibuzo, James, & Odeh, 2015), Daily Average Demand (Ed) from Table 1 = 7503Wh/day, Battery Efficiency (ηb) = 0.85 Inverter Efficiency (ηi) = 0.90 Charge Controller Efficiency (ηc) = 0.90 Sizing of PV will be carried out using the under listed formulae; Pav.peak = Ed ηbηiηcTsh .............................. (3.1) Where: Pav.peak is the average peak power of the pannel ηbis the battery efficiency ηi is the inverter efficiency ηc is the charge controller efficiency Tsh is the average sun hour at the installation site Ed is the average daily energy demand in KWh Pav.peak = 7503 0.85×0.9×0.9×6.1 = 1786.5W Idc = Pav.peak Vdc .................................. (3.2) Idc is the total dc current of the systm Idc = 1786.5 48 = 37.22A No. of modules in series (Nsm) can be calculated as shown below; Nsm = Vdc Vmp ... ... ... ... ... ... ... ... ... ... ... . . (3.3) Nsm= 48 36 = 1.2 = 2 modules No. of modules in parallel (Npm) is given as shown below: Npm = Idc Imp .................................... (3.4) Npm= 37.22 8.34 = 4.463 = 5 modules Therefore total number of modules = Nsm × Npm = 2 × 5 = 10 module... (3.6) Guda & Aliyu, (2015) 320W, 36V Felicity Panel is selected for the job
Battery:Article Title: Design of a Stand-Alone Roof-Top Photovoltaic System for a Residence in Zamfara State, Nigeria
Article Snippet: Required Information from the Solar Module: Sunpower SPR-E19-320, Vmp = 36V, Imp = 8.34A, Isc = 8.83A, dimension (LxB) = 1940mm x 992mm System Voltage (Vdc) = 48V Average Sun-hours for Zamfara (Tsh) = 6.1 hour per day (Innocent, Jacob, Chibuzo, James, & Odeh, 2015), Daily Average Demand (Ed) from Table 1 = 7503Wh/day, Battery Efficiency (ηb) = 0.85 Inverter Efficiency (ηi) = 0.90 Charge Controller Efficiency (ηc) = 0.90 Sizing of PV will be carried out using the under listed formulae; Pav.peak = Ed ηbηiηcTsh .............................. (3.1) Where: Pav.peak is the average peak power of the pannel ηbis the battery efficiency ηi is the inverter efficiency ηc is the charge controller efficiency Tsh is the average sun hour at the installation site Ed is the average daily energy demand in KWh Pav.peak = 7503 0.85×0.9×0.9×6.1 = 1786.5W Idc = Pav.peak Vdc .................................. (3.2) Idc is the total dc current of the systm Idc = 1786.5 48 = 37.22A No. of modules in series (Nsm) can be calculated as shown below; Nsm = Vdc Vmp ... ... ... ... ... ... ... ... ... ... ... . . (3.3) Nsm= 48 36 = 1.2 = 2 modules No. of modules in parallel (Npm) is given as shown below: Npm = Idc Imp .................................... (3.4) Npm= 37.22 8.34 = 4.463 = 5 modules Therefore total number of modules = Nsm × Npm = 2 × 5 = 10 module... (3.6) Guda & Aliyu, (2015) 320W, 36V Felicity Panel is selected for the job
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