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    1. Australia Emerging as Smart Grid with Storage Leader

      Australia Emerging as Smart Grid with Storage Leader
      In the Smart City initiative, storage will come in the form of lithium-ion batteries. There are four small-scale trials overall, including ammonia to hydrogen/nitrogen, graphite, zinc bromine and ultrabatteries. Some of the most dynamic homegrown startups (Wizard Power, ZBB Energy, RedFlow, Ecoult) are also located at the intersection of renewables and storage.
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      Mentions: Australia RedFlow ZBB
    2. Bright Energy's Underwater CAES 'Bag'

      Bright Energy's Underwater CAES 'Bag'
      Bright Energy's core technology is a long, flexible polymer/glass bag shaped like a giant sea cucumber. One end of the bag is attached to an air hose on the surface. A self-standing system with its own generator could produce power for under 6 cents a kilowatt hour, the CTO said. If you could latch onto a generator at an offshore wind farm, the costs could potentially drop to 2.5 cents.
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    3. PG&E Grid-Scale Storage Demo Projects

      PG&E Grid-Scale Storage Demo Projects
      PG&E does have another pumped hydro site in development, Mokelumne, that's potentially the same size as Helms and has the potential to be used to help buffer the 4,500 megawatts of wind power coming in from the Tehachapi wind developments. So, PG&E understands pumped hydro. Electrochemical storage might be a different story. PG&E has two pilot projects using sodium sulfur (NaS) batteries from NGK. NGK's NaS batteries were selected because they are one of the few technologies and vendors with a performance and reliability track record. According to Thalman, the pilot can help the ISO develop the storage markets with this testbed.
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    4. Stealthy Small Scale Commercial/Industrial Storage Startups

      Stealthy Small Scale Commercial/Industrial Storage Startups

      Powergetics is targeting small businesses and using relatively small-scale lithium-ion batteries to provide ancillary services and value for customers that don't have loads large enough for the wholesale demand response market ... Solar Storage technology is "distributed, on-demand solar, with proprietary power and storage technology for 24-hour power from 100 kilowatts to 20 megawatts." The firm is doing enterprise and commercial-level solar/storage hybrid systems.

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    5. VCs Prefer Solar, Automotive and Fuel Cells Investments Over Smart Grid

      VCs Prefer Solar, Automotive and Fuel Cells Investments Over Smart Grid
      Venture firms have invested $3 billion in greentech startups in the first four months of 2011. The biggest deals were in solar, automotive and fuel cells. VCs talk a lot about the smart grid but don't pull the trigger on too many deals -- especially when it comes to pure smart grid deals in metering, distribution automation, transmission technology, transformers and the like.
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