Energy Management at home

Transcription

1 Energy Management at home Jan. 16, 2015 Junichiro KANAMORI Micro-grid System Development Dept. DENSO Corporation

2 Energy-Management-related Products Smart Meter(by regional power company such as CHUBU Electric Power, etc.) Newly developed field Energy Management HEMS Controller Li Battery Stationary Charger(V2H) <HEMS overview> Photovoltaic generation 123 KW Energy Generator Photovoltaic (PV) Air conditioning CO2 Heat pump Hot Water Supplier HEMS LAN Distribution Board Current Sensor Air conditioning/ Thermal devices CO2Heat Pump Hot Water supplier Air conditioner Ventilation system Li battery Stationary Charger V2H PHV/EV Vehicle PHV/EV

3 Energy Management for Both Vehicle and Home 2 Power consumption Adjust demand/supply by energy storage system based on forecast and minimize CO 2 Supply forecast Sun light Forecast unstable natural energy supply Power distribution schedule Estimated power consumption Heat Power supply Energy storage system EcoCute Battery storage Energy demand/supply adjustment time V2H :Battery storage :Solar generation :Grid power Electricity Consumption forecast Hot water Air conditioner EV/PHV Forecast energy consumption : Energy flow Forecast natural energy supply Surplus Storing to battery and Ecocute Shortage Supplement by battery store and grid power Minimize CO 2 by optimizing power distribution Highly accurate forecast of demand/supply at home/vehicle is a key to optimize power distribution

4 Life style change of HEMS users Change in awareness of saving electricity The voice of HEMS users The cooking and using households time depends on the amount of energy used and generated in the home. I try to save electricity when purchased power is large. 3 Comparison of power saving awareness between husband and wife HEMS users Displaying the amount of energy provides guideline for conservation. Wives,staying home and often using households,is high awareness of energy saving. People become more aware of saving electricity through the visualization of the amount of energy

5 Result and issues in Home energy management area Summary of result Approx. 70% of CO2 was reduced when local generation/local consumption of PV is done, using HEMS, Stationary battery, Heat Pump Hot Water Supplier, PHV and V2H. 20% in home and 50% in PHV were realized HEMS, stationary battery, heat pump hot water supplier and air conditioner connected to HEMS have already been commercialized, and started to put into the market HEMS makes users to improve energy saving consideration. Plans Promote the low carbon actions in both hardware and user consideration Promote use of home devices effective to low carbon

6 5 Appendix

7 Future image of social infrastructure Overall image <Smart grid> <Smart house> 空調 充電器 エコキュート 蓄電池 Smart grid Totally streamlined grid in community, town and home HEMS(Home Energy Management System) System to support home energy management Achieve the low carbon society by expanding natural energy

8 BEMS for commercial facilities

9 Linkage between Commercial EV and commercial facility System outline Electric Compressor Condensing Unit Freezer Alternator Electricity transaction with commercial facility (Ex. Convenience store) Grid Solar generation 8 PCS DC charge ( CHAdeMO) Li Battery Compressor with belt Power circuit (DC-DC, etc.) Charging station Battery storage Store Charge to battery unit from commercial battery or alternator to keep cooling/freezing temperature at idling stop on delivery

10 HEMS automatic control HEMS system estimates home power consumption and solor generation, and optimally operate for using the most of solor generation and low-cost grid power, from the wether information, and the electric power unit price information. Solar generation Home power consumotion Power consumption Storing Battery, PHV/EV and Eco-Cute Battery Storage Water heaters (Eco-Cute) PHV/EV Time PHV/EV Eco-Cute Battery storage Supplement by PHV/EV and househoulds battery store power purchase unit price Time