The word "generate" means to make or create something. For example:

• Light bulbs generate light and heat.
• A political speech might generate controversy.
• A change in the government's policies might generate new jobs.

The word "generate" sounds kind of technical, so it's a good choice for talking about something technical or scientific:

The sun generates 400 trillion watts of energy every second!

Photosynthesis generates ATP and oxygen as a byproduct.