At present, Japan is called“Period electric light”The constitution of day and night switching electricity price. For example, Tokyo Electric Power is famous“Combined night 8”and“Combined night 10”The charging plan, the former will be 8 hours from 11:00 am to 7:00 am, and the latter will be set to 10 hours between 8 am to 8:00 am to the night low price period. In terms of electricity price per degree (kWh), the former is 30.87 days during the day, 11.82 yen in the night, the latter is 33.6 yen during the day, and the night is 12.06 days. Therefore, there is 19.05 to 21.54 yen during the day and night.Demand Recommendations (RFP: Request for Proposal) issued on November 19, 2012 (RFP: Request for Proposal), issued to smart meters (RFP: Request for Proposal), issued on November 19, 2012, and starts collecting communication function proposals. The proposal is scheduled to be accepted before the end of February 2013, and the supplier is determined from January to April 2013. Tokyo Electric Power Program imports 17 million smart meters before 2018, and imports 27 million smart meters before 2023 to complete import to all needs families.
A huge change in smart meter will bring that the dynamic pricing system priced according to the supply and demand situation will become easy to achieve. Dynamic pricing is to improve electricity prices when power is tight during the day and winter evening, while low electricity prices at night. At present, there are an empirical trial in the North Kyushu City and Aichi Prefecture in Fukuoka Prefecture, Japan.
The fixed battery should want to enter the ordinary family and let users recover costs within 10 years. What kind of price is it possible? For ordinary families with a total of 10 degrees per day, if the battery is set to 4KWH, it is charged at night, and the electricity is all over the day, then it will save about 80 yen electricity bills. In this way, approximately 292,000 yen can be saved each year, about 292,000 yen, 10 years. That is to say, the price of a fixed battery with a capacity of 4KWH can be recovered within 10,000 yen. And this price also includes the price of a frequency converter and converter that converts power. That is, the price of the entire system must be available below 75,000 yen per kWh.
However, with the popularity of smart meters, if the dynamic pricing system is started, the situation will be slightly changed. For example, if the electricity is 100 yen per day during the morning and winter in the evening in the evening, the price difference is 10 yen, and the price difference is 90 yen. If you can save 90 yen for 4 hours from 1 hour to 5:00 pm in the summer, and 4ams from 4 months in the winter.×4kwh×4 months = 43,200 yen. In addition, the pricing of the other months is described above“Period electric light”In the same way, the year can save 43,200 yen (summer and winter 4 months) +192 million yen (20 yen)×4kwh×The remaining 8 months) = 624 million yen (author Note: In the future, the solar cell is successfully introduced, compared with the summer electricity in summer, the summer and winter evening power tight may become a bigger problem).
In this way, if you want to recover costs in 10 years, you can purchase 4KWH batteries at approximately 600,000 yen. That is, the price of the entire system is 150,000 yen per kWh. If you can achieve 75,000 yen per 1kW, then 5 years can be returned and is expected to spread quickly. Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery
