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Understanding our Sources of Energy
Wind
Wind energy is a limitless resource.
Initial installation costs are substantial but the return on investment begins right away.
In Iowa and South Dakota, wind power now exceeds 25 percent of total electricity production
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Off Shore
Wind
Gas
fossil Fuel
Thermal
Nuclear
Hydro
Fracking
Battery
Solar
Energy Resources
Now updated in 2017! The Energy Saver guide offers tips for saving money and energy at home and on the road.
By following just a few of the simple tips in the Energy Saver guide, you can make your home more comfortable and easier to heat and cool–while you save money. We bring you the latest information on energy-saving, efficient technologies. We even give tips for using clean, renewable energy to power your home.
This guide shows you how easy it is to cut your energy use at home and also on the road. Some of the tips are simple to do. Others require more effort and investment, but promise big savings over the years.
Before designing or remodeling a home, consider energy efficient design strategies; landscaping; and windows, doors, and skylights. You’ll save energy and money in the long run. Also check out our recommendations for saving energy in specific types of homes, such as rentals, manufactured homes, log homes, and earth-sheltered homes.
2018 Energy Savers PDF
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the 5 most common solar energy questions
- How do you get electricity from the sun?
- How much do solar panels cost?
- What solar rebates and incentives exist?
- How long will it take for the solar energy system to pay for itself?
- Are there financing options available when going solar?
Our nation relies on a resilient and robust electric grid. A lengthy shutdown would dramatically affect our quality of life. Society depends on the steady flow electricity and the services it powers. Tens of millions would be cut off from food production and delivery, the water supply, sanitation, health care, transportation, finance, virtually all forms of communications, and more
Preventing nuclear weapons materials and technologies from falling into the hands of adversaries seeking to develop weapons of mass destruction is the top priority of the Department of Energy’s corporate security programs. All Secretarial objectives are supported by a tailored level of security requirements for a wide range of Departmental scientific, research, and national security objectives based on the security significance of their national assets. DOE ensures that Departmental personnel security programs (including the National Nuclear Security Administration [NNSA] are consistent and effectively implemented.
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How Much Warming Is Caused By Humans?
In its 2013 fifth assessment report, the IPCC stated in its summary for policymakers that it is “extremely likely that more than half of the observed increase in global average surface temperature” from 1951 to 2010 was caused by human activity. By “extremely likely”, it meant that there was between a 95% and 100% probability that more than half of modern warming was due to humans.
Since 1850, almost all the long-term warming can be explained by greenhouse gas emissions and other human activities.
- If greenhouse gas emissions alone were warming the planet, we would expect to see about a third more warming than has actually occurred. They are offset by cooling from human-produced atmospheric aerosols.
- Aerosols are projected to decline significantly by 2100, bringing total warming from all factors closer to warming from greenhouse gases alone.
- Natural variability in the Earth’s climate is unlikely to play a major role in long-term warming.
Active Drones!
Cast your vote for the new icon for our drone safety Initiative.
Energy Blog
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Direct Current Podcast
This episode of Direct Current is dedicated to the makers at the Energy Department — the engineers, researchers and artisans whose creations are pushing science and technology to exciting new places.
S3 E2: MAKERS
Science, Technology, Engineering and Mathematics
The essential building blocks of the U.S. Department of Energy’s mission
Also known as STEM Seven Essential Principles And A Set Of Fundamental Concepts To Support Each Principle. The Guide Does Not Seek To Identify All Areas Of Energy Understanding, But Rather To Focus On Those That Are Essential For All Citizens K-Gray. It Presents Energy Concepts That, If Understood And Applied, Will Help Individuals And Communities Make Informed Energy Decisions Inspire Educate, And Spark Success In STEM
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