The amount of renewable electricity being bought voluntarily has increased nearly 300% since 2010, according to new data from the Energy Department’s National Renewable Energy Laboratory.

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Data: National Renewable Energy Laboratory; Chart: Naema Ahmed/Axios

Why it matters: The trend reflects the increasing availability and affordability of wind and solar electricity, energy sources that have grown from almost nothing a decade ago to nearly 9% of all electricity today.

By the numbers: In 2018, 134 million megawatt hours of renewable electricity — mostly wind and solar — were purchased above and beyond state-level mandates. That's about 3% of all electricity sales in the U.S.

One level deeper: Companies, led by Big Tech firms, are the biggest buyers of the power, but 75% of all customers are actually individuals buying tiny amounts of electricity.

Go deeper: How I'm trying to get greener and cheaper electricity

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Lawmakers demand answers from World Bank on Xinjiang loan

Illustration: Sarah Grillo/Axios

U.S. lawmakers are demanding answers from the World Bank about its continued operation of a $50 million loan program in Xinjiang, following Axios reporting on the loans.

Why it matters: The Chinese government is currently waging a campaign of cultural and demographic genocide against ethnic minorities in Xinjiang, in northwest China. The lawmakers contend that the recipients of the loans may be complicit in that repression.

Obama: Americans could be "collateral damage" in Trump's war on mail-in voting

Photo: Zahim Mohd/NurPhoto via Getty Images

Former President Barack Obama tweeted Friday that everyday Americans could become "collateral damage" if President Trump continues to attempt to slash funding for the U.S. Postal Service as part of his campaign against mail-in voting.

Why it matters: Trump linked his baseless claims that increased mail-in voting will lead to widespread voter fraud on Thursday to the current impasse in coronavirus stimulus negotiations.

Elon Musk is channeling Henry Ford in auto manufacturing

Photo illustration: Annelise Capossela/Axios. Photo: Zhang Peng/LightRocket via Getty Images

Tesla CEO Elon Musk, who has spent more than a decade trying to disrupt the traditional auto industry, is sounding more and more like the man most closely associated with it: Henry Ford.

Why it matters: In his quest to build affordable electric cars for the masses, Musk is starting to embrace many of the ideas pioneered by Ford's founder — things like vertical supply chains and an obsession with manufacturing efficiency. A century ago that approach helped to popularize the American automobile by lowering the cost of the Model T.