Vernier Software and Technology
Vernier Software & Technology

Effect of Temperature on Solar Panel Output

Figure from experiment 20 from Renewable Energy with Vernier

Introduction

Temperature affects a solar panel in multiple ways. As solar panels are made from silicon, one factor is the effect of temperature on the silicon. Higher temperatures mean increased thermal motion of the electrons in the material, resulting in a lower energy threshold for electrons to become mobile charge carriers, resulting in a current. Because it takes less energy to create current, the maximum voltage (VOC) of the solar panel decreases as the temperature increases, while the maximum possible current (ISC) increases.

Accompanying the change in the properties of the semiconductor, the characteristic resistance of the solar panel may change as well. The silicon generally decreases in resistance as temperature increases, but the metal contacts on the top and bottom of the solar panel will behave in the opposite way. The resistance of conductors generally increases as temperature increases.

With a minimum of four ways the properties of the solar panel are changing as temperature changes, it may seem challenging to predict how the maximum power output will be affected by changing in temperature. However, it is not necessary to have an understanding of solid state physics to determine the effect of temperature on the maximum power output of a solar panel. In this experiment, you will start with a cold solar panel, and let it warm up in the sun. As the solar panel warms, you will measure the power output using an Energy Sensor.

Objectives

  • Use an Energy Sensor to measure power output while varying the temperature of a solar panel.
  • Understand how temperature affects power output for a solar panel.

Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

Option 1

Option 2

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Renewable Energy with Vernier

See other experiments from the lab book.

1Renewable Energy: Why is it So Important?
2What is Energy?
3Project: Energy Audit
4Voltage and Circuits
5Current and Resistors
6Mechanical Power
7Generators
8Exploring Wind Turbines
9Effect of Load on Wind Turbine Output
10Blade Variables and Power Output
11Solidity
12Turbine Efficiency
13Power Curves
14Power and Energy
15Project: Maximum Energy Output
16Project: Build a Wind Farm
17Exploring Solar Panels
18AEffect of Load on Solar Panel Output
18BFill Factor and IV Curve of a Solar Panel
19Variables Affecting Solar Panel Output
20Effect of Temperature on Solar Panel Output
21Project: Build a Solar Charger
22Exploring Passive Solar Heating
23Variables Affecting Passive Solar Heating
24Exploring Solar Collectors
25Variables Affecting Solar Collectors
26Project: Solar Cooker

Experiment 20 from Renewable Energy with Vernier Lab Book

<i>Renewable Energy with Vernier</i> book cover

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