1. Articles in category: Utility Grid

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    1. Analysis: Comparison Of Large-Scale Energy Storage Solutions

      Analysis: Comparison Of Large-Scale Energy Storage Solutions

      Some well-established technologies offer significant energy storage capacity but require specific geographical features and considerable infrastructure. Others can be deployed rapidly to wherever they are required, but currently offer restricted capacity, often at high cost. One technology that is now attracting considerable interest is large-scale battery storage.

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      Mentions: DoE AWEA Italy
    2. Exports A Big Opportunity for US Advanced Battery Manufacturers

      Exports A Big Opportunity for US Advanced Battery Manufacturers

      At first blush, the idea of finding lucrative markets in developing countries for advanced U.S. technology that the domestic U.S. markets are still largely unwilling to adopt sounds bizarre. But there is logic to it. In developing countries where the electricity grid is not large, complicated and reliable, investments in grid-connected energy storage will have a noticeable and immediate impact on reliability. Moreover, even relatively expensive grid-connected energy storage systems may be seen by developing world grid operators as a less expensive investment than investing in the incumbent technology necessary to bring their grid to First World standards.

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    3. Japan's Largest Solar Plant Regrets Small Storage

      Japan's Largest Solar Plant Regrets Small Storage
      At the nation's largest photovoltaic power plant in Sakai, Kansai Electric Power introduced an energy storage facility accommodating 48 nickel hydride batteries near KEPCO's substation … At Sakai, up to 10,000 kilowatts of electricity is generated during the current trial run ahead of the full operation starting in October. On cloudy and rainy days, however, the output drops to around 5,000 kilowatts and 2,000 kilowatts, respectively. To make up for the gap and achieve stable supply, KEPCO plans to release electricity accumulated in the energy storage facility on sunny days. Since the utility did not adopt highly-efficient lithium-ion batteries at the energy storage facility for financial reasons, there is a limit to the amount of electricity it can cover on bad weather days. Despite being the nation's largest photovoltaic power plant, its output is roughly one-hundredth of that of a nuclear reactor.
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      Mentions: Japan
    4. Canada Gives Electrovaya Cdn$3.6M for Renewables Storage Test

      Canada Gives Electrovaya Cdn$3.6M for Renewables Storage Test

      Electrovaya has signed a contract to provide a lithium ion Battery Energy Storage System ("BESS") of approximately 1.2MWh for demonstration purposes in support of renewable energy generation in Ontario. This program is a part of an Electrovaya led $7.6 million project supported by the Government of Canada's Clean Energy Fund (CEF) to investigate the potential use of battery energy storage systems in clean energy project. Partners in the project include Natural Resources, Canada, Hydro One and others. Electrovaya is the prime contractor and system designer and will provide the full energy storage system.

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      Mentions: Electrovaya Canada
    5. U of Hawaii Selects Altairnano for 1MW Solar Storage Integration Test

      U of Hawaii Selects Altairnano for 1MW Solar Storage Integration Test

      Altair Nanotechnologies announced it has signed a contract with the Hawai'i Natural Energy Institute (HNEI) of the University of Hawai'i at Manoa to supply a one-megawatt ALTI-ESS energy storage system for a test of solar energy integration. Altairnano will provide the ALTI-ESS battery-based power management system to be tested on Hawaiian Electric's electric system to smooth the voltage and load profile with the aid of dynamic voltage controls and fast charge/discharge abilities.

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    6. 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: Texas
    7. 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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    8. 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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    9. 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
    10. 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
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