Chief Blogger’s Favorite Cleantech Blogs

On September 21, 2012, in Blog, by Neal Dikeman

I’ve personally written hundreds of articles over the years.  I selected a few I thought were pretty timeless or prescient, and worth rereading: What is Cleantech?  Always a good starting point: or try, The Seminal List of Cleantech Definitions   The “Rules” in Cleantech Investing – Rereading this one after the cleantech exits study we […]

Corn Flakiness

On August 13, 2012, in Blog, by Richard T. Stuebi

The historic drought this summer across most of the United States has severely damaged this year’s corn crop.  According to the U.S. Department of Agriculture, corn production is expected to be down more than 10% from last year. Not surprisingly, corn prices have surged.  What may be surprising is how much they’ve surged:  up to record levels exceeding $8.00/bushel, […]

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Top 10 Cleantech Subsidies and Policies (and the Biggest Losers) – Ranked By Impact

On July 31, 2012, in Blog, by Neal Dikeman

We all know energy is global, and as much policy driven as technology driven. We have a quote, in energy, there are no disruptive technologies, just disruptive policies and economic shocks that make some technologies look disruptive after the fact.  In reality, there is disruptive technology in energy, it just takes a long long time. […]

Will the 21st Century be the Fossil Fuel Century?

On December 30, 2010, in Blog, by Neal Dikeman

Will the 21st century be the fossil fuel century? Whether it’s peak oilers, climate scientists, renewable and sustainable gurus, or cleantech venture capitalists, we all talk like that’s not an option.  We’ve preordained that the 21st century is a green energy, renewable power, cleantech century. And I’d like to believe that.  But it’s not a […]

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Why Corn-Based Ethanol Sucks

On May 17, 2010, in Blog, by Richard T. Stuebi

by Richard T. Stuebi While it is increasingly recognized that subsidies for corn-based ethanol are bad policy, a nod must be given to C. Ford Runge, a professor at the University of Minnesota, for his pithy and merciless analysis in his note “Biofuel Backlash” published in the May/June issue of Technology Review. In the space […]

Biofuel Beatdown

On November 9, 2009, in Blog, by Richard T. Stuebi

by Richard T. Stuebi A few weeks ago, the Wall Street Journal ran an article entitled “U.S. Biofuel Boom Running on Empty”, which presented a blistering across-the-board slam on biofuels. Perhaps more interesting than the WSJ article itself was an email reaction I received from a prominent energy tech venture capitalist with keen visibility into […]

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Biofuel Industry – No Money, No Respect

On May 11, 2009, in Blog, by John Addison

For the moment, the price at the pump is reasonable. A spike in demand or a terrorist disruption, however, will quickly remind us that we are desperately dependent on oil as we continue to consume 140 billion gallons of gasoline per year. Even in these recessionary times of moderate demand, we are running out of […]

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Ethanol in the Tank

On December 1, 2008, in Blog, by Richard T. Stuebi

by Richard T. Stuebi The news seems everywhere these days that ethanol is dead as a doornail: October 21, Financial Times: “Investors Suffer As U.S. Ethanol Boom Dries Up”November 5, Bloomberg: “VeraSun Doomed; Goldman Stops Ethanol Stock Coverage” It’s easy to pin the tough times for ethanol on the left-right combination of precipitous declines in […]

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When In A Hole, Stop Digging

On August 25, 2008, in Blog, by Richard T. Stuebi

by Richard T. Stuebi I never cease to be amazed by the frequency and vehemence of opinions expressed on energy and environmental matters by people who are spectacularly underinformed. So in this exposition about oil, let’s first begin with a Top Ten List of clear-cut facts. 1. World oil production (which is essentially equal to […]

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Beware the Allure of Ethanol Investing

On June 13, 2008, in Blog, by Neal Dikeman

I am a fan of ethanol. The addition of corn ethanol to our US fuel supply chain has had a significant impact in keeping gasoline prices way lower than they otherwise would have been, and has paid for the subsidies many times over. But that has not translated to gains for ethanol stocks, which are […]

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Is Corn Ethanol Lowering Gas Prices at the Pump?

On May 15, 2008, in Blog, by Neal Dikeman

Despite providing the largest portion of alternative fuel in the US, corn ethanol gets a lot of flack in the circles Cleantech Blog runs in. The usual culprits go something like this: Corn ethanol is heavily subsidized (yes it is). Corn ethanol does not reduce greenhouse gas emissions (sort of, it really, really depends on […]

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Is Ethanol’s Carbon Footprint Bad? It Depends.

On April 15, 2008, in Blog, by Neal Dikeman

In the cleantech and carbon worlds, the carbon footprint of ethanol, whether from corn or sugar feedstocks and fermentation processes, or enzymatic or thermochemical cellulosic sources, is always good fodder (or perhaps, “fuel”) for debate. And depending on which process and which study you personally ascribe to, the answer on how carbon clean ethanol looks […]

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Ethanol Under Pressure

On April 7, 2008, in Blog, by Richard T. Stuebi

by Richard T. StuebiA good friend of mine sent me a provocative email the other day: “Last year, your government spent more than $8 billion of your tax dollars to achieve the following results: Dramatically increase the emissions of carbon dioxide and other greenhouse gases into the atmosphere Accelerate the destruction of the Amazon rainforest […]

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Cellulosic Ethanol – Always the Bridesmaid?

On April 1, 2008, in Blog, by Neal Dikeman

I have a new set of predictions for ethanol technology, and so far my predictions on ethanol have been dead on. Cellulosic ethanol has been the thin film of the ethanol industry, always the bridesmaid. But perhaps, like with the breakthrough by First Solar (NASDAQ:FSLR), it’s time is coming. I have written extensively on the […]

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California’s Low Carbon Diet

On December 5, 2007, in Blog, by John Addison

By John Addison (12/5/07). When Coke and Pepsi were in the middle of their diet wars, California was an early battle ground. It is a state which tends to do much in excess, including drinking colas. In fact, only a handful of countries spend more money on beverages. Parties of happy and surprisingly fit youth […]

Micro Fuel Cell Killer – What’s Next?

On June 14, 2007, in Blog, by Neal Dikeman

About 4 or 5 years ago micro fuel cells were quite a hot topic in cleantech. They were going to power our laptops, cell phones, PDAs, blackberries, hand held multimedia devices, etc. The story ran like this: The digital age and increasing customer demand for more power hungry features like bandwidth, multimedia, et al on […]

Blogroll Review: Bottles, Biobutanol, Bagasse

On June 14, 2007, in Blog, by Frank Ling

by Frank Ling DIY Solar Water Heater The Chinese have done it again. In a country that puts waste to good use, they have found another use for beer bottles: solar water heating. Matt James writes about a Chinese farmer who made his own solar heater in the EcoGeek blog: “…we get the story of […]

Gas Misers or Corn Guzzlers

On May 15, 2007, in Blog, by John Addison

By John Addison (5/15/07) People buying new cars are asking if they should get a high mileage hybrid that runs on gasoline, or a flex-fuel vehicle that could run on E85 ethanol. The United States DOE’s and EPA’s fueleconomy.gov, made it easy for car buyers to compare choices. When you drive, there is most likely […]

Blogroll Review: CO, Surveys, & Phones

On April 26, 2007, in Blog, by Frank Ling

Conservation of energyCarbon monoxide or CO is not your friend. It binds to your hemoglobin and your brain starves from a lack of oxygen. But like all molecules out there, it’s not really good or evil. It’s just trying to maximize its entropy. With biofuels now in the spotlight, some have proposed converting CO into […]

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Cleantech: The Problem and Solution

On March 6, 2007, in Blog, by Neal Dikeman

Two interesting cleantech reports came out in the last couple of days. One talking about the problem, the other the solution. On the problem side, as reported in USA Today, a team of researchers working at Texas A&M found that increased pollution in Asia, primarily from the rise of industrialism in China over the last […]

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