Tag Archives: solar

Tesla Battery Economics: On the Path to Disruption

Update: The Tesla battery is better than I thought for homes. And at utility scale, it’s deeply disruptive. Elon Musk announced Tesla’s home / business battery today. tl;dr: It’ll get enthusiastic early adopters to buy. The economics are almost there to make it cost … Continue reading

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China Isn’t the Reason Solar is Cheap. Innovation Is.

“The only reason solar is so cheap is because China is dumping cells.” I hear this a lot. So let me correct it. Here is the price, as of February 2015, of solar modules, per watt sold in Europe. SE … Continue reading

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Solar + Wind, More Than the Sum of Their Parts

David Roberts has an amazing first post in his new job at Vox, on why a solar future is inevitable. Clearly I’m bullish on solar. My own reasons are that: 1. Solar is plunging in price far faster than any … Continue reading

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Why Energy Storage is About to Get Big – and Cheap

tl;dr: Storage of electricity in large quantities is reaching an inflection point, poised to give a big boost to renewables, to disrupt business models across the electrical industry, and to tap into a market that will eventually top many of … Continue reading

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How Much Land Would it Take to Power the US via Solar?

I’ve seen some pieces in the media lately questioning this, so allow me to point to some facts based on real-world data. tl;dr: We’ll probably never power the world entirely on solar, but if we did, it would take a … Continue reading

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2014 Was a Good Year: Better Than You Remember

Eric Garner. Michael Brown. The Sony hack and surrender to fear. 2014 seems to be ending on a crappy note. My twitter feed is full of people expressing good riddance to the year. 2014 was better than that. I want … Continue reading

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Solar and Wind Plunging Below Fossil Fuel Prices

Asset management firm Lazard has a fascinating new analysis of renewable and other energy prices out. There are a huge number of insights in this, from an outside analyst whose primary interest is financial. (Those are, in my mind, the … Continue reading

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The Renewable Energy Revolution

Transforming the world’s energy supply will take decades. It is a very tall order. But it’s starting. The price of renewables – and energy storage – continues to plunge, putting them on a path to being cheaper than any other … Continue reading

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Carbon Prices Drive Clean Energy Innovation

I want to point out something I see commonly missed.  Carbon prices accelerate innovation that brings down the price of green energy. So do renewable energy portfolio standards, green energy subsidies, and a whole swath of other climate policies. They do this … Continue reading

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Solar Power Prices Dropping Faster Than Ever

In 2011, I wrote a piece for Scientific American on the exponential price decline in solar power. I haven't had a chance to fully update that piece, but two quick notes.   First, the price decline in solar cost per … Continue reading

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