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the slide referenced 3. Below is the monthly energy use data from SRP (Salt River Project) for a 4000 sq. ft. house in a remote
the slide referenced
3. Below is the monthly energy use data from SRP (Salt River Project) for a 4000 sq. ft. house in a remote location in the Phoenix, AZ area. 4k k Usage (kWh) III 2k illiu. 1k Jan 3 Apr 3 Jul 3 Oct 3 Jan 3 Off-peak On-peak Using the rough estimate approach together with the worst month design methodology, estimate the size of the photovoltaic system and battery storage necessary to power this house off-grid. Assume the panels to be purchased are the sunpower SPR-205-BLK panels whose specs are given on slide 9 of Lecture RE_L0306. For the month with the highest load above, estimate the average daily load from the monthly energy (divide by 30). Assume the losses associated with the system are the same as the approximations given in the notes. The number of Sun Hours varies from 6 hours per day in January to 7.5 in June. A rough estimate of the storage is only that necessary for the diurnal (daily) night day variation, i.e. find the average hourly load, and the number of hours storage is needed (i.e. not the Sun Hours). ELECTRICAL CHARACTERISTICS AT STANDARD TEST CONDITIONS (STC) STC is defined as: irradiance of 1000W/m2, spectrum AM 1.5g and cell temperature of 25C . Peak Power12 . max 205W Rated Voltage Vmp 40.0V SPR-205-BLK (sunpower) Residential PV Module: 72 series-connected A- 300 solar cells with conversion efficiency up to 21.5% high-transmission tempered glass; EVA encapsulation; black anodized aluminum frame Rated Current Imp 5.13A . Open Circuit Voltage Voc 47.8V Short Circuit Current Isc 5.53A Series Fuse Rating 15A Maximum System Voltage 600V (UL) 1000V (IEC) Temperature Coefficients Power -0.38%/C Voltage (Voc) -136.8mV/C Current (1.c) 3.5mA/C Module Efficiency 16.5% 3. Below is the monthly energy use data from SRP (Salt River Project) for a 4000 sq. ft. house in a remote location in the Phoenix, AZ area. 4k k Usage (kWh) III 2k illiu. 1k Jan 3 Apr 3 Jul 3 Oct 3 Jan 3 Off-peak On-peak Using the rough estimate approach together with the worst month design methodology, estimate the size of the photovoltaic system and battery storage necessary to power this house off-grid. Assume the panels to be purchased are the sunpower SPR-205-BLK panels whose specs are given on slide 9 of Lecture RE_L0306. For the month with the highest load above, estimate the average daily load from the monthly energy (divide by 30). Assume the losses associated with the system are the same as the approximations given in the notes. The number of Sun Hours varies from 6 hours per day in January to 7.5 in June. A rough estimate of the storage is only that necessary for the diurnal (daily) night day variation, i.e. find the average hourly load, and the number of hours storage is needed (i.e. not the Sun Hours). ELECTRICAL CHARACTERISTICS AT STANDARD TEST CONDITIONS (STC) STC is defined as: irradiance of 1000W/m2, spectrum AM 1.5g and cell temperature of 25C . Peak Power12 . max 205W Rated Voltage Vmp 40.0V SPR-205-BLK (sunpower) Residential PV Module: 72 series-connected A- 300 solar cells with conversion efficiency up to 21.5% high-transmission tempered glass; EVA encapsulation; black anodized aluminum frame Rated Current Imp 5.13A . Open Circuit Voltage Voc 47.8V Short Circuit Current Isc 5.53A Series Fuse Rating 15A Maximum System Voltage 600V (UL) 1000V (IEC) Temperature Coefficients Power -0.38%/C Voltage (Voc) -136.8mV/C Current (1.c) 3.5mA/C Module Efficiency 16.5%Step by Step Solution
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