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Hitachi’s experience in developing Smart Grids

Hitachi’s experience in developing Smart Grids. Shin-ichi INAGE Renewable Energy & Smart Grid Division, Hitachi Ltd. Required Technologies for Smart Grids. Hitachi has a lot of experiences based on our products and technologies for Smart Grids. Renewables. Energy storage. Simulation.

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Hitachi’s experience in developing Smart Grids

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  1. Hitachi’s experience in developing Smart Grids Shin-ichi INAGE Renewable Energy & Smart Grid Division, Hitachi Ltd.

  2. Required Technologies for Smart Grids Hitachi has a lot of experiences based on our products and technologies for Smart Grids Renewables Energy storage Simulation Electric vehicle Heat pump Smart Grid (Optimal operation of power grid By control of Demand/Supply) AMI Control Information Communication

  3. Mega Solar Plant & Bifacial PV Panel PCS Application of Bifacial PV Panel 13MW-class Solar Plant for TEPCO Present 30 24.6% Predecessor Content % CELL Efficiency (%) Limit value 20 10 2006 2009 2007 2010 2005 2008 Harmonic order

  4. Lead Acid Battery Energy storage model Battery room Batteries ■ PCS ＝ 400kW system ■ Battery capacity ＝ 1.7MWh Load Shifting System Wind Power-Kuroshio

  5. -69% 1.0 0.78 0.52 0.31 Gas -firing Heat pump Oil -firing Electric Heat Pump Water Heater System Reduction of CO2 emissions of water heater Applicable to demand response or load shifting Hot water High temperature 90℃ hot water Compressor CO2 cycle Hot-water cylinder Water/refrigerant Heat exchanger Air/refrigerant Heat exchanger Heat from air Expansion valve 5℃ water Low temperature Cold water Overview of system Principle of heat pump water heater -69% 1.0 0.31 Heat pump Gas-firing Comparison of relative CO2 emissions Comparison of relative operation cost

  6. SmartGrids Trial at Rokkasho Village Rokkasho-Demonstration Project ・This project evaluates system functionality and energy optimization by using closed Futamata Window Power Generation Site （JWD） PHV （Plug-inHybridVehicle） PCS （PowerConditioningSystem) Power Grid Energy Service Information Exchange Surveillance and Control Information Exchange Power Distribution Line PV(100kW) Information Flow Control ・Grid Side Supply and Demand management and control(include Power generation and Storage) ・Energy Service Integration Charge/ Discharge Control Photovoltaic （Hitachi） PCS Mini-Information Hub Server Hub Battery (250kW) Operator Monitor automatic surveillance and control Server (D-EMS server) Grid Side Information ↓ ↑ Demand Side Energy ServiceInformation Charge/ Discharge PCS Control Center （Hitachi） ＮＡＳ Battery（ＮＧＫ） Heat Pump Control ＥＶ＆ＰＨＶ ・Demand side power generation and storage control(include HEMS functions) PHV Charger （Smart Center） Smart Home/Building PHV Smart House （Panasonic） Smart House （Toyota） Smart house （JWD） Multi family housing

  7. Over view of PV Futamata Window Power Generation Site （JWD） Inter-connection Point PV(100kW) Control Center Photovoltaic （Hitachi） PCS Hub Battery (250kW) Overview of Solar Power System (100kW) Charge/ Discharge PCS ＮＡＳ Battery （ＮＧＫ） PHV Charger PHV Smart House （JWD） Smart House （Toyota） Smart house （Panasonic） Multi family housing

  8. Over view of the Community Futamata Window Power Generation Site （JWD） Smart house （Panasonic） Smart House （JWD） Inter-connection Point PV(100kW) Control Center Smart House （Toyota） Photovoltaic （Hitachi） PCS Hub Battery (250kW) Charge/ Discharge PCS ＮＡＳ Battery （ＮＧＫ） Smart meter Heat Pump PHV Charger PHV Smart House （JWD） Smart House （Toyota） Smart house （Panasonic） Multi family housing

  9. The analytical result (24/Sep- 28/Oct,2010) The self-sustenance ratio is 88% Futamata Window Power Generation Site 12% Inter-connectionPoint • 88% of the total energy consumption was provided by the electric • power of PV (HUB, Rooftop PV) generation with HUB Power storage. Operation Results: Electric Power charged / discharged PV Output ■PV+Hub Storage support ratio is 95.9% = (iv) / ( (i) + (ii) ) (%) (iv) Demand (ii) ■PV surplus ratio is 56% = (iv) / ( (iii) ) (%) (i) (iii) Balance of Supply & Demand

  10. Conclusions Through actual demonstration projects in Japan, US and other areas, Hitachi is contributing to R&D of Smart Grids technologies. The concept of Smart Grids should vary in each country and customer. Hitachi is willing to respect the existing power gird, utilities and technologies of the customers. We are intending to contribute to achieve "Best Mix" of the customers' existing power grids and our leading-edge technologies as WIN-WIN solution.

  11. Thank you for your attentions

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