1. Articles in category: Utility Grid

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    1. 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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    2. 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
    3. 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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    4. 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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    5. 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
    6. 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
    7. 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
    8. 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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    9. 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.
    10. How Renewables and Storage will Replace German Nukes

      How Renewables and Storage will Replace German Nukes
      Existing energy storage options are being maximised and new battery technologies rolled-out. With more than 17,000MW of installed capacity, Germany boasts more than half the world’s operating photovoltaic solar energy panels. More than 21,000 wind turbines, most of them onshore, provide another 27,000MW, while offshore development of a further 25,000MW in the North Sea is planned by 2030. By 2050, the country expects to generate 80% of its electricity using renewable sources.
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      Mentions: Africa Germany
    11. Flex Power Summit Offers Ltd Free Passes for Utilities

      Flex Power Summit Offers Ltd Free Passes for Utilities
      Utility Scale Flexible Power Summit (27 - 28 September 2011 Denver, CO) to explore flexible power management options, market developments for ancillary services and storage technologies, and to hear about the latest developments in the transmission and environmental policy … We are offering a limited amount of free passes for utilities.
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    12. Solar (w/ Storage) Will Move Appalachia From Coal

      Solar (w/ Storage) Will Move Appalachia From Coal
      Figure 7 shows the decrease in the consumer price per kilowatt-hour (kWh) for solar energy over time. This cost includes the cost to install solar, install energy storage (beginning in 2020), maintain the solar array, and building the transmission infrastructure. While this decrease may not look like much at first glance, it’s much more desirable than the dramatic cost increases in Figure 8 if we were to stick with coal.
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      Mentions: Kentucky
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