A Saltier Charge: The First Pocket-Sized Sodium-Ion Battery Is Here – Fortune

French researchers’ first attempt at a rechargeable competitor to lithium-ion batteries could be on the market in 5 to 10 years. Care for a little salt with your rechargeable battery? Researchers in France have announced their first prototype for a compact sodium-ion battery. Though scores of sodium-ion batteries have been in the works for decades,

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Battery Backups? | SOLARFOOTPRINT

By SOLARFOOTPRINT You may have seen the hype about battery backup offered by Tesla. There seems to be a lot of confusion in what they do and what they are used for. The first confusion is the announced price. While Tesla announced they are $3500.00, this is just for the battery itself. If you want a

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Storing Solar Energy: A great idea caught on contested ground | IEEE Spectrum | Road To Abundance

Adding energy storage to sites with rooftop solar power generation offers a range of potential benefits. A battery can help smooth out solar’s inherently variable supply of power to the local grid, and even keep buildings powered during blackouts. Consequently, power-conversion innovators are developing a host of new products designed to reduce the cost and improve the

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What do I make of Powerwall? | Eclipse Now

While Tesla’s Gigafactory is bringing down the *financial* cost of batteries, the *energy* cost of building them is still the same. And that cost is huge. So huge that once counted in the energy accounting of a wind and solar system, it really starts to eat into the EROEI. Sure wind and solar have good

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