Stories from GreenTech Media

  1. Learnings from the Gevo S-1

    GreenTech Media &bull Aug 13, 2010

    S-1s are great. You can't learn everything about a company from them, but you can learn a heck of a lot. And when the company is pretty indicative of an entire subsector, you can use that company's data to help illustrate trends across a market. Gevo's S-1 is well worth reading through. Because the company is, I think, fairly illustrative of what many venture-backed "2nd generation biofuels" stories have looked like. I don't have any insider knowledge of Gevo, so it's also a good one for me to talk about… Full Story »

  2. Why THESE companies are IPOing

    GreenTech Media &bull Aug 13, 2010

    As an active investor in the cleantech market I'm definitely hoping we can start to see some successful exits. I, like others, am pining for a few successful IPOs with stellar returns that can be good beacons of hope for the rest of the sector's bets. When there were practically zero venture-backed IPOs across all sectors, you knew there was a backlog of cleantech companies that were lining up to IPO… Full Story »

  3. Energy efficiency: Where angels will shine

    GreenTech Media &bull Aug 1, 2010

    As you pull into the parking lot, the grit of crumbling asphalt crunches under your tires. No shade trees or white curbs in this parking lot, just lines on tarmac, narrow spaces, and an unfiltered summer sun. You get out of your car and look up at the tall, nondescript brick building, and head toward the effectively unmarked entrance, a metal door that makes you remember public schools from years ago. A train rattles by on an elevated track directly behind the building, picking up speed as it carries its daily delivery of bankers and lawyers downtown. A few other… Full Story »

  4. What's EnerNOC up to?

    GreenTech Media &bull Jul 17, 2010

    I had the opportunity to visit with Tim Healy at EnerNOC last week, toured their demo center, had a fun lunch talking shop. As longtime readers might be able to guess, I am pretty keen on the energy efficiency industry as an investment area. What they might not know is that I missed out on investing in EnerNOC years ago as part of a Series B round -- the company had approached my firm for an investment, but then Foundation Capital invested quickly and at a… Full Story »

  5. Nikola would be proud

    GreenTech Media &bull Jun 30, 2010

    Tesla went out to IPO today quite successfully. I was very glad to see the offering do well, at least on the first day. I've seen complaints about it going out too early (as yet unprofitable, and mass market car not due until 2011), but it does seem from the outside like a… Full Story »

  6. Some random cleantech VC thoughts and aphorisms

    GreenTech Media &bull Jun 26, 2010

    Been away on a major travel binge, so apologies for a download of a bunch of randomness that has accumulated over the past few weeks. Selling even millions of dollars' worth of a Gen 1 product at zero or negative gross margins doesn't count as "Commercialization". It's just a large beta test. Tom Pincince, President and CEO at my portfolio company Digital Lumens, is also a… Full Story »


  7. Wind Tubines, The Next Generation

    GreenTech Media &bull May 4, 2010

    Those are also the qualities Sandy Butterfield intends to design into the turbine his startup Boulder Wind Power company will build and market. He believes his design will lead to turbines light enough and less expensive enough to compete with… Full Story »


  8. Google Invests in Wind Farms

    GreenTech Media &bull May 3, 2010

    The investment does not come from Google.org, which has made sporadic venture investments, but Google proper. Last year, the company got permission to sell electricity like a utility. While wind costs less than solar and provides more power than solar… Full Story »


  9. 'Silicon + Heat = Cheap Energy' Gets $1 Million

    GreenTech Media &bull May 3, 2010

    Alphabet Energy, which says it can make electricity for around $1 a watt out of waste heat in factories or data centers, has raised $1 million from Claremont Creek Ventures and the CalCef Clean Energy Fund. The company, one of… Full Story »


  10. Energy Storage Medley: Hydrogen, CAES, Li-ion, NaS, NiCad...

    GreenTech Media &bull May 3, 2010

    Michael Kanellos reported on a virus that makes hydrogen and I covered Sun Catalytix, a VC-funded company looking to inexpensively electrolyze water. Early-stage startup Pilus Energy makes a microbial fuel cell which produces hydrogen gas and DC electricity from the metabolism of organic materials by genetically engineered bacteria. Feedstocks for the Pilus bioreactor are organic compounds found in waterways, plant pulps, farm wastes and sewage. A video illustrating this concept is here. Venture Capitalists Vie For the Winning Energy Storage Technology At least five utility-scale storage startups have… Full Story »

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