1. Articles in category: Utility Grid

    2713-2736 of 2826 « 1 2 ... 111 112 113 114 115 116 117 118 »
    1. Analysis: Sunk costs of Hydro, Nuke, Coal, & Nat Gas Suppresses Renewables & Storage

      Analysis: Sunk costs of Hydro, Nuke, Coal, & Nat Gas Suppresses Renewables & Storage
      The increased cost comes from curtailment of renewable generation that occurs because thermal generators will choose to stay at a minimum level of operation even when uneconomic for them to do so at that specific time interval. That is to say the costs of turning off and turning back on are higher than the costs of operating below cost for a few hours. Because much of the electric grid is “inflexible”, this is an important area to consider for continued integration of renewables. Thus, this is one of the main reasons for consideration of storage technologies to reduce curtailment of wind and solar generation: renewables will be curtailed even before the total electrical demand becomes less than instantaneous renewable generation due to the inflexibility of the thermal power plants.
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      Mentions: TX
    2. Report by IDC: 'Business Strategy: Distribution Optimization Coming in Waves'

      Report by IDC: 'Business Strategy: Distribution Optimization Coming in Waves'
      "Distributed renewable generation, energy storage, and electric vehicles increase network complexity, which will be adapted to, in part, through a redesign of the centralized command and control structure. Operators will need to shift from actively monitoring all distribution network activity to handling critical exceptions while relinquishing routine decision making to automated systems," said Marcus Torchia, IDC Energy Insights research manager, Intelligent Grid Strategies.
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    3. Xcel Testing 20 x 50kW Batteries on Grid

      Xcel Testing 20 x 50kW Batteries on Grid
      “It allowed us to sight the battery on property at a switching station, run cable to their substation, and provide us access to their voltage transformers to get our power on and off the grid,” Xcel said. The 20 50-kilowatt battery modules combined are the size of two semi trailers and weigh almost 80 tons. They are able to store more than 7 megawatt-hours of electricity, with a charge and discharge capacity of one megawatt.
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    4. French €30M project to test integrating renewables and batteries.

      French €30M project to test integrating renewables and batteries.

      Alstom is partnering with Electricité Réseau Distribution France (ERDF), EDF SA, SAFT, and other industrial partners, to test new energy management technologies while integrating renewable energies and batteries. The €30 million project will take place on France’s Côte d’Azur and is funded by the French General Commission for Investment (CGI) and the French Environment and Energy Management Agency (ADEME) will help fund the project; while the European Union will be the other major public contributor.

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      Mentions: France Europe Saft
    5. Economics of EV Battery Reuse [promo for NAATBatt Annual Conference]

      Economics of EV Battery Reuse [promo for NAATBatt Annual Conference]
      Most of the discussion about reuse has centered on what the residual uses of the batteries are going to be. Many have talked about (and several are investigating) the repurposing of EV batteries for grid-connected energy storage. Use in residential power back-up and vehicle recharging station applications is also possible. The Chinese have mentioned plans to use repurposed EV batteries in street lights. The highest and best use of repurposed EV batteries is, however, still very much an open question.
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      Mentions: GM NAATBatt
    6. Webinar: Utility-Scale Storage: Determining the Best Investment Strategy for Utilities

      Webinar: Utility-Scale Storage: Determining the Best Investment Strategy for Utilities
      The participants will be Electric Power Research Institute (EPRI) Strategic Program Manager Haresh Kamath, Duke Energy Senior Project Manager Melanie Miller, Customized Energy Solutions Vice President of Emerging Technologies Rahul Walawalkar and Smart Grid Today Editor Dan Richman. The webinar is on Thursday, Aug 4, 2011 at 2-3:30 p.m. EDT , or on the multi-media recording that will be available after the event.
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      Mentions: Duke Energy EPRI
    7. International Battery Announces Executive Appointments

      International Battery Announces Executive Appointments
      *** Mark P. Mills, the Company's current Chairman, will assume the positions of Chief Executive Officer and Vice Chairman, effective September 1, 2011; *** Dr. Ake Almgren, the Company's current Chief Executive Officer and Vice Chairman, will step down as CEO and become Chairman and consultant to International Battery also effective September 1, 2011; *** Thomas Puza, formerly of Ener1, has joined International Battery as Chief Operating Officer. *** Joseph Jacobs, President of Wexford Capital LP, will be joining the Board.
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      Mentions: Asia Harvard Ener1
    8. Report: High Temperature Energy Storage: NaS, NaMx and Molten Salt

      Report: High Temperature Energy Storage: NaS, NaMx and Molten Salt
      According to a new report by market research publisher SBI Energy, energy storage is a growing market critical to the advancement and optimization of smart grid transmission and distribution operations and to the integration of renewable energies in power generation. High temperature energy storage (HTS) technologies, including sodium-sulfur (NaS), sodium-metal halide NaMx, and molten salt thermal energy storage (TES), are gaining attention as the go-to technologies for large scale and utility scale energy storage.
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      Mentions: U.S. GE
    9. Beacon Power inaugurates Stephentown flywheel plant

      Beacon Power inaugurates Stephentown flywheel plant
      Beacon Power hosted an inauguration of the Company's newly completed 20MW flywheel energy storage plant in Stephentown, New York. The plant is the largest advanced energy storage facility currently operating in North America. It utilizes 200 high-speed flywheels to provide fast-response frequency regulation services to the New York grid with zero emissions and no fuel consumption.
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      Mentions: NY MA Beacon Power
    10. To Store or Not to Store: That is the Question

      To Store or Not to Store: That is the Question
      Whenever energy storage is mentioned the majority of us think batteries, however from a United States grid perspective, pumped hydro is the incumbent technology, followed by compressed air (CAES) and then the relativity new grid storage concepts of flywheels and electrochemical batteries. This order of preference is also representative of the capital cost, high to low, and the flexibility of deployment low to high—which is the fundamental driver for the growth of large format batteries on the grid. Although the largest potential benefit for storage on the grid is peak load shifting, other benefits are also realized in the form of: load firming, voltage support, frequency regulation, ramp management, community storage and security of the grid.
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      Mentions: U.S.
    11. GM and ABB Research Using EV Batteries for Renewables Storage

      GM and ABB Research Using EV Batteries for Renewables Storage
      On Tuesday, GM and ABB demonstrated an energy storage system that combines a proven electric vehicle battery technology and a proven grid-tied electric power inverter. The two companies are building a prototype that could lead to Volt battery packs storing energy, including renewable wind and solar energy, and feeding it back to the grid ... The team is building a prototype system for 25-kilowatt/50-kWh applications.
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      Mentions: GM ABB
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