1. Articles in category: Solar Photovoltaic

    2857-2880 of 2919 « 1 2 ... 117 118 119 120 121 122 »
    1. 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
    2. Summary: This Week's Wind and Solar Projects

      Summary: This Week's Wind and Solar Projects
      It’s been a good week for renewable energy in the country, with wind farms and solar projects being constructed, getting approval and being opened. Read on for news from around the US in this week’s installment of the Green Tech Regional Report to learn about the renewable energy projects that might be coming to a location near you, as well as some exciting news about a new development in electric vehicles.
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      Mentions: CA NY Duke Energy
    3. 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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      Mentions: HI Altair Nanotech
    4. Good Overview of "Post-stimulus Financing" of Renewables

      Good Overview of "Post-stimulus Financing" of Renewables
      Money is flowing worldwide for many forms of renewable energy, as the industry presses forward with dramatic growth. CleanEdge reported US$188.1 billion in global revenue for biofuels, solar and wind energy in 2010, a 35.2% surge over 2009. Bloomberg New Energy Finance (BNEF) found that clean energy investment worldwide reached $243 billion in 2010, nearly double the sector investment just four years earlier. And venture capital investment for clean technology in the US rose 54% in the first quarter of 2011 compared with the same period one year earlier, in a trend led by solar energy companies, according to Ernst & Young … But will the growth continue as stimulus funding winds down?
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      Mentions: CA DoE U.S.
    5. 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
    6. 1MW Solar Project for Oahu, HI

      1MW Solar Project for Oahu, HI
      Forest City Hawaii and Hawaiian Electric Company have reached a power purchase agreement for up to one megawatt of solar photovoltaic (PV) power to be generated at the Kapolei Sustainable Energy Park in Kapolei, Oahu. Hoku Solar, a subsidiary of Hoku Corporation (NASDAQ: HOKU), will design and install the project using more than 4,200 solar panels atop a concrete racking system.
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      Mentions: HI
    7. PG&E and Sempra Contract for 150MW from Expansion of Copper Mountain Solar

      PG&E and Sempra Contract for 150MW from Expansion of Copper Mountain Solar
      Pacific Gas and Electric Company and Sempra Generation have entered into a 25-year contract for 150MW of renewable power from an expansion of Sempra Generation's Copper Mountain Solar complex in Boulder City, Nev. The first 92 MW of solar panels at Copper Mountain Solar 2 are expected to be installed by January 2013, with the remaining 58 MW slated for completion by 2015. PG&E has the option to accelerate the commercial operation date of the second phase.
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    8. Fraunhofer Off-grid PV Farming Solutions Without Storage

      Fraunhofer Off-grid PV Farming Solutions Without Storage
      The Fraunhofer energy management system monitors the amount of energy produced and then ensures that it is delivered to the devices that need it most. To illustrate, a submersible pump, which is 105 feet deep, can be powered to fill a reservoir when energy is available and the irrigation pump or desalination unit at other times. Only a relatively small battery is needed to ensure the CPV tracker and measuring system remains powered.
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      Mentions: Germany Fraunhofer
    9. Maui Rent-A-Space Co. installing 600kW Grid-Connected Solar Project

      Maui Rent-A-Space Co. installing 600kW Grid-Connected Solar Project
      AAAAA Rent-A-Space, a storage facility and commercial center in Honokowai, announced it has begun construction on the largest commercial photovoltaic power generation system in Maui County. The 600-kilowatt system will contribute to the state’s “feed-in tariff” program, with the capacity to feed 2880 kilowatt-hours into the island’s electrical grid each day, enough clean, renewable energy to power up to 220 Maui homes.
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      Mentions: HI
    10. Report: Inverters Compete Against Batteries in Smart Grid

      Report: Inverters Compete Against Batteries in Smart Grid
      According to a new IMS Research report, features such as reactive power, smart grid interaction and energy storage are transforming inverters from simple power-conversion units into essential components of grid infrastructure. These advancements will radically change the PV inverter market over the next five years, the report notes.
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      Mentions: Europe Germany
    11. PG&E Signs 3 Solar Power Purchase Agreements

      PG&E Signs 3 Solar Power Purchase Agreements
      The race to meet the toughest standard in the country for more clean power has intensified in California. Utilities such as PG&E and San Diego Gas & Electric have been busy inking contracts. Pacific Gas and Electric announced three power purchase agreements that collectively will generate 50MW. The three developers are Recurrent Energy, Westlands Solar Farms and Fotowatio Renewable Ventures.
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