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Channel: solar – Gregor.us
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My Working Model: Oil to Solar

It’s been a couple of years since I last watched Vinod Khosla talk about biofuels. During the second half of 2006 he cruised around the country giving a big pep talk on the promise of corn ethanol....

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Parabolic Trough Solar

Not everyone can win the solar lottery. The world has many sunny places. But, only some where the sun blasts away all year at high intensity. They are places like North Africa. Southern Spain. The...

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Electrical Boston

In the backpages of my analytical notebook is the following blurb: When it comes to the transition from liquid hydrocarbons, however, one wonders this challenge falls more naturally not to Silicon...

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Powering the Dubai Overshoot

You’ve seen the before-and-after pictures, like a Vegas slug of glass rising in the desert. And, you’ve read the stories about indebted foreign workers leaving their Range Rovers behind, as they flee....

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Choosing An Energy Deficit

Energy analyst and author Richard Heinberg published a sobering piece on energy transition and climate change last week, and he hits upon a theme that I’ve been addressing in my recent work on coal....

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Thoughtful Solar Guy

There are very few people working in Alternative Energy who restrain themselves from making grandiose statements, but Bill Gross of eSolar is one of the few who sticks to the facts, and clearly has...

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Global Energy Use By Source in 2010

The above chart shows the latest proportions of primary energy sources, as reported by the BP Statistical Review. You can see that Renewables now appear in the data, and account for 1.32% of total...

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World Solar Power Goes Parabolic

From a very small base, and from a tiny position in world energy supply, the buildout of global solar power is starting to go parabolic. Last year, according to the just released BP Statistical Review...

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Invasive Solar: December Issue of TerraJoule.us

Each issue of TerraJoule.us contains: a Main Essay, a Model Portfolio, a Data Brief, and a link to a Downloadable Podcast. Gregor Macdonald, Editor. Readers may purchase each issue individually,...

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Wind and Solar Reach 5.6% of Total US Electricity in 2015

US electricity generation has been slightly oscillating around a flatline, near 4000 TWh per year, for the last decade. However, with the great wave of coal retirements now beginning to land and with...

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Peak Coal, They Said: Questions Persist about Fossil Fuel Scarcity, and the...

Are you excited at the prospect that Coal’s Second Coming, largely driven by China over the past 20 years, has now come to a halt? You should be. Coal retirements in the United States have been...

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Combined Wind and Solar Reach 7.2% of Total US Electricity in 1H 2016

The transition to renewables, wind and solar power in particular, has typically run ahead of expectations this decade and fresh data from the United States illustrates this phenomenon nicely. In the...

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The Large Scale Force of Small Scale Solar

Soon, you will learn that US solar growth doubled last year, as the country added a gargantuan 14.6 GW of new capacity. The utility scale sector saw the highest growth rate in 2016, and that has...

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The Next Emissions Story

If you’ve been following the emissions story the past few years, you will know that slower economic activity and the rise of renewables have started to seriously blunt the growth of global carbon. In...

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Wind and Solar Fly to New Highs in the United States

Full year 2016 data just released from EIA shows that combined wind and solar reached 7% of total US electricity generation. In a system that produced a total of 4096 TWh, combined wind and solar...

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US Fossil Fuel Consumption Has Peaked, and Will Never Return

US fossil fuel consumption from coal, oil, and natural gas peaked ten years ago in 2007 at 85.927 quadrillion btu, and is unlikely to ever return. There are a number of trends underneath that peak that...

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