Skip to main content
We’re so back. See what’s new for the 2026-2027 school year →

♻️ap environmental science review

Cogeneration (CHP) in AP Environmental Science

Verified for the 2027 exam
Verified for the 2027 exam•Fiveable Content Team

Definition

Cogeneration, also known as Combined Heat and Power (CHP), is an energy-efficient process that simultaneously produces electricity and useful heat from the same energy source. It maximizes the utilization of fuel and reduces greenhouse gas emissions.

This definition is part of Fiveable's AP Environmental Science review, which also has guided practice questions.

AP course connection

Topic 6.3: Fuel Types and Uses

Review this concept in the study guide

Unit 6

See every topic in this unit

Cogeneration (CHP) cheat sheet

Visual study aid for homework and review

"Cogeneration (CHP)" also found in:

Keep studying AP Environmental Science

Connect this key term to the AP exam workflow: review the course, practice questions, and check related study tools.

AP Environmental Science hub

Review units, study guides, and course resources.

AP-style practice

Check this vocabulary in multiple-choice context.

FRQ practice

Apply key concepts in written AP responses.

Score calculator

Estimate the exam score you are working toward.

Cheatsheets

Review the highest-yield facts before practice.

Practice exam

Put the full course together before test day.