### Course description

**Course Objectives:**

To learn complete, necessary and essential theory of solar energy, PV modules/systems, charge controllers, inverters and batteries in an easy and understandable way

To practice and solve 35 applied technical questions including calculations (theory explained) leading to expert approach and confidence

Understanding core concpets of Solar PV system as per NEC690

To strengthen knowledge on a sound professional basis, and add core technical value to the knowledge

To learn in hours from zero to perfection

If you are planning for Industry Certifications, then this course brings considerable preparatory material helping you achieve your objective

**Description:**

This is not another Solar PV course but in fact this course brings abundance of material which shall take your knowledge and understanding to a level which shall be sufficient to understand all professional theory behind solar photovoltaics and associated equipment like charge controllers, inverters and batteries.

This will cover various topics related to solar energy, PV cells and arrays including sun, solar system, solar radiation, solar energy, PV modules, PV arrays/systems, charge controllers, inverters and batteries, which are necessary to grasp the professional understanding for designing and installing of solar PV systems.

Additionally, this course shall help the learner to go through some common PV-related questions and learn how to calculate and solve the problems. All theory is explained with calculations and reasoning. These questions will certainly enhance the confidence of the learner.

Efforts have been made that all such topics and questions are covered and comprehensive learning takes place in a couple of hours through theory and calculations.

**Course Content**

Solar PV and associated science of sun, solar radiation and solar energy

- The sun, solar radiation and solar light, extraterrestrial solar radiation and solar constant, terrestrial solar radiation and air mass, peak sun value and hours, solar irradiance and irradiation, solar radiation data and maps, measuring solar radiation and sunshine, earth orbit and rotation, solar time and equation of time graph, sun path charts and solar window, photovoltaic module azimuth and tilt angles, solar and magnetic declination, power and energy basic electrical equations

Working of solar PV cells, modules and arrays

- Atom, semiconductors and band-gap, silicon element structure and doping, photovoltaic effect and solar cell working principle, structure, materials and fabrication of solar cell, current-voltage-power curves of solar PV modules, temperature coefficient and calculating voltages, efficiency and fill factor

Module series and parallel connections, bypass diodes, PV labels, test conditions, PV international standards, system resistance, calculating minimum and maximum array voltage as per NEC, calculating minimum and maximum array current as per NEC

Charge controllers

- Charge controller functions, types of charge controllers, voltage settings of charge controllers, selection parameters, installation of a charge controller

Inverters

- Introduction, AC, DC and quality of power, switching, power conditioning and control, types of solar inverters, earthing & grounding, selection parameters of inverter

Batteries

- Introduction to batteries, characteristics and parameters of a battery, battery of batteries, calculating battery bank size, selection parameters of a battery, operation and installation of a battery, battery standards

35 applied technical questions with all theory and solutions explained

- Calculate Voltage Drop in a Cable
- Calculate System Power based upon Solar Irradiance, Module rated Power and Efficiency
- Finding No. of Strings and PV Modules Combination given System Data
- Calculating Voltage and Current Output at Standard Test Conditions given System Data
- Calculate AC Output of a Solar PV System given System Losses and Inverter Efficiency
- Finding least amount of PV Modules given System Data
- Understanding purpose of Bypass Diodes
- Find best solution for having multiple orientations of PV Modules
- Calculate MPPT voltage of the system at Standard Test Conditions
- Find best Voltage for charging a 12V Lead Acid battery
- Find characteristics of a Wire that lead to more Voltage drop
- Calculate PV Size given Area and PV Module Efficiency
- Calculate minimum number of PV Modules to be installed in series given System data
- What kind of ground faults do most inverters detect
- Calculate total System size given PV Modules data and number of Strings
- Calculate Voltage of PV Cells given other combination
- Calculate No of Batteries required given Load Watt-Hours and Volts
- Calculate No. of Batteries required given Load data
- Which one affect the production of Current most in PV Modules
- Calculate Energy Units consumed by a Load
- Understanding Air Mass
- Calculate power produced by the PV Array given PV Module area and efficiency
- Calculate size of Breaker at output of an Inverter
- Understand factors required to calculate Inter-row spacing of PV Modules in an Array
- Troubleshooting a PV System consisting of one source circuit not producing power
- Find optimumed PV Tilt Angle during the Summer season for an Off-Grid PV System
- Calculate Maximum No of Modules to be connected in Series given System data
- Calculate the Energy Units consumed per day by a residental load
- Find wrst Orientation Design for the installation of the PV system
- What can be the maximum array size given Charge Controller data
- Finding Tilt Angle of the Array given Location and Latitude
- Calculate Energy produces by a PV System in one year given System data
- Calculate Maximum No. of PV Modules to be installed in series given System data
- Troubleshooting an Off-Grid PV system which often Shuts down during Winter
- Calculate annual System Output given System data

Understanding core concpets of Solar PV System as per NEC 690

- Introduction & Definitions: NEC 690.1 & 690.2
- Maximum Voltage and Calculations: NEC 690.7
- Maximum Current and Circuit Sizing: NEC 690.8
- Rapid Shutdown System: NEC 690.12
- Over-Current Protection (OCPD): NEC 690.9

**Who is this Course For:**

- Beginners, engineers, technicians or others who are interested to learn and understand solar PV science and technology on sound and professional footings
- Engineers, technicians or professionals who are already in this field, and quickly want to refresh their knowledge on sound basis
- Those who may decide in future to go for industry certifications

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