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California Lawmakers Pass Plug-In Solar Bill

Legislatures in nearly a dozen states have voted to legalize use of the technology, which can help homeowners reduce their rising electricity costs.

Β© Poppy Lynch for The New York Times

A plug-in solar panel on the balcony of a home in Sunnyvale, Calif.
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Plug-In Solar Panels Are Starting to Sprout in U.S. Backyards

Ten U.S. states have legalized systems that can be plugged into standard wall outlets. The technology typically does not require permits or electricians.

Β© Poppy Lynch for The New York Times

Alex Ottoboni with his balcony solar panel at his condo in the San Francisco Bay Area
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Nuclear Energy Revival Puts Westinghouse in Prime Position

The company, which filed for bankruptcy protection in 2017, stands to benefit from growing support for nuclear power and President Trump’s deal with Saudi Arabia.

Β© Mike Stewart/Associated Press

Cooling towers at the nuclear reactor facility at the Alvin W. Vogtle Electric Generating Plant in Waynesboro, Ga.
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The U.S. Is Pulling Back on Energy Efficiency

The Trump administration is undoing fuel-saving efforts even as war in Iran, data centers and heat waves are pushing up gasoline and electricity costs.

Β© Michael Hickey/Getty Images

A dishwasher at a General Electric plant in Louisville, Ky. The Energy Department has moved to repeal 17 standards for dishwashers, washing machines, kitchen appliances and more.
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Data Centers to Add Billions in Power Costs in 13 States

A power auction conducted by a giant grid operator is expected to add $6.3 billion in additional charges to consumers and businesses because of electricity needs of data centers.

Β© Leah Millis/Reuters

Northern Virginia is home to several data centers, including the Digital Realty Data Center in Ashburn.
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Will Oil Prices Rise as the US-Iran Truce Frays? The Answer Lies With China.

For decades, OPEC influenced the market by how much oil it produced. But China, the largest importer, is demonstrating its remarkable power over prices.

Β© Agence France-Presse β€” Getty Images

A tanker at a crude oil terminal in Qingdao, China. Typically the world’s largest oil importer, China slashed purchases this spring.
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In Europe, Tesla Sales Are Rising Despite Views on Elon Musk

Price cuts and low-interest-rate loans are luring buyers, including people offended by the company’s chief executive.

Β© Michael Nguyen/NurPhoto, via Associated Press

A Tesla Supercharger station in Germany. Tesla’s sales have rebounded sharply in Europe alongside sales of all electric cars.
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Your Home Could Help Solve AI’s Growing Power Demand

Tesla, Sunrun and Renew Home plan to tap solar panels, batteries, thermostats and other devices installed in millions of homes to meet the energy demands of artificial intelligence.

Β© Collin Chappelle for The New York Times

Installation of a Sunrun solar panel on a roof in California. Sunrun is working with Tesla and Renew Home to use home energy devices to help data centers get online faster.
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