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New Savings Projects provide step-by-step instructions on home energy efficiency improvements. Learn how to <a href="/energysaver/projects/savings-project-how-weatherstrip-double-hung-or-sash-windows">weatherstrip double-hung (or sash) windows</a>. Also check out our guide to <a href="/energysaver/projects/savings-project-how-seal-air-leaks-caulk">sealing air leaks with caulk</a>.

New Savings Projects provide step-by-step instructions on home energy efficiency improvements. Learn how to weatherstrip double-hung (or sash) windows. Also check out our guide to sealing air leaks with caulk.

The New EnergySaver.gov -- Save Money by Saving Energy!
By taking simple steps to improve your home's energy efficiency, you can save up to 30 percent on your energy bill. | Infographic by <a href="http://energy.gov/contributors/sarah-gerrity">Sarah Gerrity</a>.

With fall right around the corner, we are relaunching our EnergySaver.gov website with fresh updates that will help you and your family save money by saving energy.

You Asked, We Are Answering: Your Home Efficiency Questions
Air conditioners use about 5 percent of all the electricity produced in the United States, costing homeowners more than $11 billion annually. Replacing an old air conditioner unit with an energy efficient unit could save you 20-40 percent on your home cooling costs. | Photo courtesy of ©iStockphoto/BanksPhotos.

Answering your home energy efficiency questions to help you save energy and money.

New Zero Net-Energy Facility: A Test Bed for Home Efficiency
Deputy Assistant Secretary for Energy Efficiency Kathleen Hogan joined representatives from the National Institute of Standards and Technology (NIST) and state and local elected officials to celebrate the opening of the new zero net-energy residential test laboratory. | Photo courtesy of NIST.

The Energy Department partners with NIST to prove homes can produce as much energy as they consume.

Lighting Choices to Save You Money
Homes

Light your home for less money while using the same amount of light.

Thermostats and Control Systems
A digital programmable thermostat set for energy savings during the heating season can save energy and money. | Photo courtesy of ©iStockphoto/burwellphotography

In most situations, a programmable thermostat can save you money without sacrificing comfort.

EERE Celebrates Completion of 1 Million Weatherized American Homes

The Energy Department's Weatherization Assistance Program is helping families save money on their energy bills while creating jobs for American workers and reducing pollution.

Secrets of a Tribal Energy Auditor

Fawn Metcalf helps modest-income families save money and stay healthy by testing their homes for airflow leaks and structural problems.