1. Advantages of lithium batteries:
Compared with nickel-metal hydride batteries, lithium batteries have significant advantages such as high operating voltage, high energy density, low energy rate. self-discharge and no memory effect. . Additionally, lithium batteries can be made thinner and smaller. It is reported that the thinnest polymer lithium-ion battery is only 0.5mm, and its characteristics of arbitrary area and arbitrary shape also greatly improve the flexibility of battery design. Any shape and capacity can be made to meet product requirements.
2. Disadvantages of Lithium Batteries:
No battery can be perfect, and lithium batteries are no exception. In the past two years, the “Battery Gate” incident has broken out. the iPod and the Meizu X6 Battery complaints havewas received shortly after its launch, which largely caused gamers who were considering purchasing lithium battery MP3 players to hesitate again and again. Overall, lithium batteries also have a weak side. They cannot be overcharged, cannot withstand excessive discharge, cannot withstand high temperatures, and cannot withstand severe cold.
How many batteries are needed for 100kw photovoltaic energy storage?
First, determine the sunshine duration and charging efficiency of the location where photovoltaic panels are installed.
If the charging efficiency is 80% and the sunshine duration of a day is 10am to 4pm, then the charging capacity is 100KW*6h*80%=600KWh* 80%=480 kWh.
If you choose 48V energy storage lithium battery, a total of 100 stacked 48V 100Ah (4.8 kWh) rack modules withthis capacity are necessary.
In terms of cost, the cost of photovoltaic panels is calculated based on 2 yuan/W, 100KW*2 yuan/W=200,000. The cost of a battery storage system of Energy stacked lithium iron phosphate is about 5,500 yuan, and the cost of 100 units is 550,000 yuan. The total cost of photovoltaic panels + energy storage batteries (built-in BMS) is 700,000 RMB, excluding inverter installation costs and labor.
The total budget therefore requires 1 million (plus inverter installation costs and labor). Such energy storage systems are typically used in small industrial and commercial applications and are not affordable for households. Yes, at least for adults. Villa.