Photovoltaics

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/photovoltaics

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the primary application?Decentralized and utility-scale electricity generation, contributing significantly to renewable energy portfolios
2. What is the global capacity (2022)?Exceeded 1 terawatt (TW), supplying approximately 2% of global electricity demand
3. What is a photovoltaic panel and how does it work?A photovoltaic panel uses special materials like silicon to turn sunlight into electricity. When light hits the panel, it frees electrons that flow through a circuit and create power.
4. How did solar panels start being made for everyday use?The first silicon solar cell was made in 1954 by Bell Labs for satellites. It wasn't cheap, but by the year 2000 many more panels were made for roofs and farms, especially in China.

P-N Junction: The interface between two types of semiconductor materials (p-type and n-type) crucial for charge separation.
Photon: A fundamental particle of light that carries energy and can initiate the photovoltaic effect.
Intermittency: The characteristic of solar power generation being dependent on sunlight availability, requiring storage or grid balancing.