Students learn how the aerodynamics and rolling resistance of a car affect its energy efficiency through designing and constructing model cars out of simple materials. As the little cars are raced down a tilted track (powered by gravity) and propelled off a ramp, students come to understand the need to maximize the energy efficiency of their cars. The most energy-efficient cars roll down the track the fastest and the most aerodynamic cars jump the farthest. Students also work with variables and plot how a car's speed changes with the track angle.

Students use a watt meter to measure energy input into a hot plate or hot pot used to heat water. The theoretical amount of energy required to raise the water by the measure temperature change is calculated and compared to the electrical energy input to calculate efficiency.

Students use LEGO® motors and generators to raise washers a measured height. They compare the work done by the motor-generator systems with the energy inputs to calculate efficiency.

This course explores the theoretical and empirical perspectives on individual and industrial demand for energy, energy supply, energy markets, and public policies affecting energy markets. It discusses aspects of the oil, natural gas, electricity, and nuclear power sectors and examines energy tax, price regulation, deregulation, energy efficiency and policies for controlling emission.

This Lesson provides two different activities that require students to measure energy outputs and inputs to determine the efficiency of conversions and simple systems. One of the activities includes Lego motors and accomplishing work. The other investigates energy for heating water. They learn about by products of energy conversions and how to improve upon efficiency. The teacher can choose to use either of these or both of these. The calculations in the water heating experiment are more complicated than in the Lego motor activity. Thus, the heating activity is suitable for older students, only the Lego motor activity suitable for younger students.

With increasing public awareness of the multiple effects of global environmental change, the terms water, energy, and food crisis have become widely used in scientific and political debates on sustainable development and environmental policy. Although each of these crises has distinct drivers and consequences, providing sustainable supplies of water, energy, and food are deeply interrelated challenges and require a profound understanding of the political, socioeconomic, and cultural factors that have historically shaped these interrelations at a local and global scale.

This simulation lets learners explore how heating and cooling adds or removes energy. Use a slider to heat blocks of iron or brick to see the energy flow. Next, build your own system to convert mechanical, light, or chemical energy into electrical or thermal energy. (Learners can choose sunlight, steam, flowing water, or mechanical energy to power their systems.) The simulation allows students to visualize energy transformation and describe how energy flows in various systems. Through examples from everyday life, it also bolsters understanding of conservation of energy. This item is part of a larger collection of simulations developed by the Physics Education Technology project (PhET).

Students learn about the wonderful and fascinating country of China, and its environmental challenges that require engineering solutions, many in the form of increased energy efficiency, the incorporation of renewable energy, and new engineering developments for urban and rural areas. China is fast becoming an extremely influential factor in our world today, and will likely have a large role in shaping the decades ahead. China is the world's largest energy consumer and the largest producer of carbon dioxide emissions, leading engineers and scientists to be concerned about the role these emissions play in rural and urban public and environmental health, as well as in global climate change. Through exploring some sources of air pollution, appropriate housing for different climate zones, and the types of renewable energy, the lessons and activities of this unit present ways that engineers are helping people in China, using an approach to cleaner, smarter, healthier and more-efficient ways of living that apply to people wherever they live.

This course focuses on the thermal, luminous, and acoustic behavior of buildings, examining the basic scientific principles underlying these phenomena and introducing students to technologies and analysis techniques for designing comfortable indoor environments. Students are challenged to apply these techniques and explore the role light, energy, and sound can play in shaping architecture.

Students take a closer look at cars and learn about some characteristics that affect their energy efficiency, including rolling resistance and the aerodynamics of shape and size. They come to see how vehicles are one example of a product in which engineers are making changes and improvements to gain greater efficiency and thus require less energy to operate.

Renew Boston Trust is a program launched by the City of Boston to improve energy efficiency in municipal buildings. By implementing energy conservation measures, such as lighting upgrades and weatherization, the program aims to reduce energy use and lower greenhouse gas emissions

This course links clean energy sources and storage technology to energy consumption case studies to give students a concept of the full circle of production and consumption. Specifically, photovoltaic, organic photovoltaic, piezoelectricity and thermoelectricity sources are applied to electrophoresis, lab on a chip, and paper microfluidic applications–relevant analytical techniques in biology and chemistry. Hands-on experimentation with everyday materials and equipment help connect the theory with the implementation. Complementary laboratories fabricating LEDs, organic LEDs and spectrometers introduce the diagnostic tools used to characterize energy efficiency.
This course is one of many OCW Energy Courses, and it is an elective subject in MIT’s undergraduate Energy Studies Minor. This Institute-wide program complements the deep expertise obtained in any major with a broad understanding of the interlinked realms of science, technology, and social sciences as they relate to energy and associated environmental challenges.

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"New sound-recording technology could help researchers keep closer tabs on biodiversity—a rapidly dwindling measure of global health. Biodiversity is critical to maintaining the global ecosystems that provide our basic needs – air, water and soil able to grow food. Human activities such as overexploitation of resources, pollution, habitat alteration and climate change are causing biodiversity loss so extreme that many caution we are entering the sixth mass extinction. But it’s not too late. World leaders have united to promise to conserve biodiversity. Meaningful efforts, however, require cost-effective strategies. One of the most promising solutions to emerge in recent years is passive acoustic monitoring. Natural soundscapes provide rapid insight into the diversity of animals in a certain location, based on metrics known as acoustic biodiversity indices. These audio features are proven to predict the number of species in a given area..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Students learn and discuss the advantages and disadvantages of renewable and non-renewable energy sources. They also learn about our nation's electric power grid and what it means for a residential home to be "off the grid."

This lesson covers the process of photosynthesis and the related plant cell functions of transpiration and cellular respiration. Students will learn how engineers can use the natural process of photosynthesis as an exemplary model of a complex yet efficient process for converting solar energy to chemical energy or distributing water throughout a system.

The efficiency of a thermal power plant is the ratio of the electricity output to the energy input, taking into account the heat losses. Over the years, the average efficiency of thermal power plants using fossil fuels in the United States has significantly increased, from 4% in 1900 to 43% in 2023. This improvement is attributed to reducing heat loss in the three main energy conversion processes: fuel combustion, steam generation, and electricity generation.

A convergence of factors contributed to a stable per capita energy demand over the past 30 years in California, as compared to dramatic increases nationwide. What does the future hold? (55 minutes)

Michael Siminovitch, Director of the California Lighting Technology Center, presents the interesting history of the compact fluorescent light. The discussion that follows includes Tim Tutt of the California Energy Commission and Michael Neils, of M. Neils Engineering. (83 minutes)

In 1974, the California Legislature adopted the Warren-Alquist State Energy Resources Conservation and Development Act. That ambitious statute created the California Energy Commission and, in the process, fundamentally re-ordered this stateŐs paradigm for developing energy policy. (76 minutes)

This segment introduces the June 2010 Conference on Smart Energy Technology in California. (26 minutes)