Deeya Nabs Another $30M for Energy Storage


deeya-logo-updatedFor Deeya Energy, good things come in threes. The Fremont, Calif.-based startup, which is working on energy storage technology for three applications — replacing diesel generators, stockpiling renewable energy, and stabilizing the electric grid — has just closed a third round of financing. The oversubscribed $30 million round brings Deeya’s total venture capital investment since its founding in 2004 to $53 million.

deeya-energy-esp New investor Technology Partners — which has also backed Abound Solar and Tesla Motors — led the round, and existing investors BlueRun Ventures, Draper Fisher Jurvetson and New Enterprise Associates also joined. At this point, the company says it plans to use the new investment to expand operations and ramp up production of its so-called L-cell technology. Deeya’s modular devices (pictured) are an example of flow battery tech — they use large tanks full of dissolved electrolytes to store power at utility scale.

Large-scale energy storage is getting to be a crowded space these days. Fellow startups EEstor, Altairnano (s ALTI) and A123Systems are all looking to connect high-capacity, fast-charging energy storage devices to the energy grid. To be sure, updating the electric grid to make better use of wind and solar resources (which can’t be called up on demand like a coal-fired power plant) remains a work in progress. But the idea is to store excess energy generated at night or during other periods of low demand, and then deploy that clean power when demand spikes instead of firing up polluting power plants.


kent beuchert

You people are confused about the use of electrical storage devices to aid unreliable energy sources such as windmills and solar devices. The use of Altair batteries for such tasks is totally ludicrous. Altair batteries cost so much that the only niche they have found thus far that is even remotely cost effective is
as very small capacity units to smooth out small variations in grid flow. Even there, they would be 10 times more costly than EEStor devices, overall, should EEStor’s EESUs’ prove viable. From the latest revelations about the devices , most importanly, that they are operating in paraelectric phase, NOT the widely assumed ferroelectric phase assumed by their skeptical critics, the supposedly fatal dielectric saturation foresaw by the skeptics is not possible. Unless you are familair with these facts and have some contradictory (and plausible) comments, I would keep my mouth firmly shut if you are thinking about voicing any additional brainless criticisms about EEStor.
What’s funny is that all this nonsense is about CO2,
an insignificant component of a poorly understood system that’s all about water vappor, water vapor, water vapor. This gullible generation of earth saviers, who can’t compete economically against any foreign country, no matter how primitive is avoiding the effort and fighting to reduce a chemical that has nothing to do with any future events, catastrophic or not. Ohhh, I’m so scared of high carbon levels.
By the way, the total polar ice mass is increasing and is at a 60 year high. Al, where are you Al?

Lake City

Agree, EESTOR is a joke! I have a google alert set for blogs and news about EESTOR. Several times a week, I am amazed by continued reports on this bogus company. One report mentioned EESTOR and some ultracapacitor research being done at MIT … as if they were on par, it was sickening.


Please do not use EESTOR in the same sentence with Altairnano and A123Systems. EESTOR is a scam, Altairnano and A123Systems are real companies.

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