Tesla’s $3,000 Powerwall Will Let Households Run Entirely On Solar Energy

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TechCrunch

You almost certainly associate Tesla with cars — very cool cars — but the company has an even grander vision beyond that. Today, CEO and founder Elon Musk unveiled ‘Tesla Energy’ — a new business arm that is focused on ending our dependence on grid power and switching instead to solar energy.

The first Tesla Energy product is ‘Powerwall Home Battery,’ a stationary battery that can power a household without requiring the grid. The battery is rechargeable lithium-ion — it uses Tesla’s existing battery tech — and can be fixed to a wall, removing much of the existing complexity around using a local power source.

“The issue with existing batteries is that they suck,” Musk said in a press conference announcing Tesla Energy. “They are expensive, unreliable and bad in every way.”

Tesla’s solution, he said, is different.

For one thing, the company’s batteries cost $3,500 for 10kWh and $3,000 for 7kWh — add your snarky…

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This FBI dog hair scandal should make us question our faith in scientific evidence

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Fusion

In 1978, Santae Tribble, then 17, was convicted of a murder in D.C. based on the testimony of two FBI forensics experts. They asserted that a single hair strand found at the crime scene matched Tribble’s DNA. He served 28 years in prison before an independent analysis found that the hair was no match—it was a dog’s hair.

Tribble was exonerated, but his case is one among potential thousands of individuals convicted on the highly questionable FBI hair forensics practices. As Fusion’s Daniel Rivero reported this week, “over 95 percent of the cases involving hair evidence that the FBI has reviewed so far contained flawed testimony—257 out of 268 cases.”

Consistently racist and ubiquitously prosecution and conviction driven, investigators wield the power society accords them as experts, often with scant regard for consequences of their “facts” for the condemned. But there’s more than pernicious police work at play here. There’s…

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