In the customer communication of energy gathering new energy, there is a recurring scene: The customer holds the quotation of two batteries, one is lead-acid battery, the unit price is 3000 yuan; One is lithium battery, the unit price is 8000 yuan. The customer's first reaction was "lithium battery is too expensive". However, the sales team that gathers energy and new energy will not rush to refute it, but take out an "energy account book" to help customers calculate an economic account for the whole life cycle.

Electric forklift TCO (total cost of ownership) Ledger. Lead-acid battery pack: the initial purchase is 3,000 yuan, the service life is 1.5 years, the average annual replacement cost is 2,000 yuan, the construction of charging room is 5,000 yuan, the maintenance labor is 3,000 yuan per year, and the TCO is about 25000 yuan in 5 years. Rechargeable new energy lithium battery: the initial purchase is 8,000 yuan, the service life is 5 years, no need to be replaced, the charging facilities are simplified to registered jack, the annual maintenance is 500 yuan, and the TCO is about 10500 yuan in 5 years. When the account book was spread out, the customer suddenly realized that the "expensive" of lithium battery was an illusion, and "provincial" was the truth.

LCOE (electricity cost) account book for household energy storage. Lead-acid energy storage system: the initial investment is 5,000 yuan, the cycle life is 500 times, the single cycle cost is 1.0 yuan/kWh, and the energy efficiency is 75%. Energy accumulation new energy lithium battery energy storage system: initial investment 12000 yuan, cycle life 6000 times, single cycle cost 0.2 yuan/kWh, energy efficiency 95%. With the spontaneous self-use of photovoltaic, the LCOE of lithium battery system has been lower than the electricity online shopping price, and the payback period of investment is about 5-7 years, and almost "free electricity" for the next 15 years ".

The operating efficiency ledger of the AGV. Lead-acid battery AGV: the daily average operation is 12 hours, the power change time is 30 minutes/time, the standby battery pack investment is 20000 yuan, and the charging room covers an area of 50 ㎡. Rechargeable new energy lithium battery AGV: Daily average operation for 18 hours, fast charge for 1 hour supplement 80%, no need for standby, charging facilities cover an area of 5 ㎡. According to a logistics warehouse, the equipment utilization rate of lithium battery solution increased by 50%, saving 100000 yuan/year location rental, and the accumulated income in 3 years exceeded the initial investment difference.