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# ECET425L Lab 2- Solar Panels | Complete Solution

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**ECET425L Lab 2- Solar Panels****Objectives:****•Learn some basic solar panel terminology ****•Be able to distinguish between different solar panel types and efficiencies****•Understand how solar panels can be used in series and parallel****Parts List:****•12 volt solar panel-PV(photovoltaic)****•Solar Panel Spec Sheets in Doc Sharing****Introduction:****The first solar cell was developed over 100 years ago. Solar panels are arrays of solar cells and are used to capture the sun’s energy or insolation and convert it into energy. There are many different types of solar panels and we will look at several different ones.****Step 1: Solar Panel Definitions**** Define the following as pertaining to solar panels:**** OCV or Open Circuit Voltage**** SSC or Short Circuit Current**** Maximum Power Point Voltage**** Maximum Power Point Current**** Polycrystalline Solar Panels**** Moncrystalline Solar Panels**** Amorphous Solar Panels**** Organic Solar Panels**** Solar Panel Concentrator**** Off Grid PV System**** Grid Tied PV System**** Charge Controller**** Inverter****Step 2: Questions about the Solar Panel Spec Sheet ****1.What is the OCV of your 12 volt solar panel?****2.What is the SSC of your 12 volt solar panel?****3.What is the output power of your 12 volt solar panel?****4.Define the STC parameters for PV panels.****Step 3: Procedure****1.Measure the OCV of your solar panel in the sun or with a 100 watt incandescent bulb shining on it.****2.Measure the SSC of your solar panel in the sun or with a 100 watt incandescent bulb shining on it.****3.What is the physical size of your solar panel in meters?****4.What is the efficiency of your solar panel from your calculations? Use an insolation value of 1000 watt/meter^2****5.State how many sun hours it would take for one of your solar panel s to fully charge your 12 volt 5 amp-hour battery?****6.What is the OCV and SSC with your two solar panels in parallel?****7.What is the OCV and SSC with your two solar panels in series?****Step 4: Calculations and Series Parallel Connections ****1.Using a BP 4200J 200 Watt Solar Panel how many panels would be need for a 300 volt DC 1000 watt system? ****2.A typical 10k watt sine wave inverter would require how much current from a 48 volt battery system at full output power? Assume 80% efficiency. Remember Power=Voltage*Current****3.If only 12 volt 250 amp-hour batteries are used. ****What is the configuration for a 48 volt 1000 amp-hour system? How many in series and how many in parallel? What is the configuration for a 72 volt 250 amp hour system?****How long can a 12 volt 4 amp pump operate from one 250Ah battery with a 50% DOD?**

## [Solved] ECET425L Lab 2- Solar Panels | Complete Solution

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Note: A 5 amp-hour battery does not mean the battery will output a current of 5 amps for one hour. Standard SLA capacities a...

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### ECET425L Lab 1: SLA Batteries | Complete Solution

Note: A 5 amp-hour battery does not mean the battery will output a current of 5 amps for one hour. Standard SLA capacities are measured at C/20 with C being the amp-hour rating of the battery.

1. &nb...

### ECET425L Lab 2- Solar Panels | Complete Solution

Note: A 5 amp-hour battery does not mean the battery will output a current of 5 amps for one hour. Standard SLA capacities are measured at C/20 with C being the amp-hour rating of the battery.

1. At ...

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In general, it is difficult to get 6,000 watts from a 12 volt battery bank:

6,000 watts * 1/0.85 inverter eff * 1/10.5 battery cutoff = 672 amps continuous at 12 volt current

It is pretty difficult to get even 2...

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Motors it is a device which convert electrical energy into mechanical energy.

It works on principle that when a coil carrying current is placed in a magnetic field, it experience a electromagnetic force