How much can 1000 kWh of energy storage save in a year
2025-07-17
Q: Want to know how much electricity bills can be saved by 1000 kWh of energy storage equipment in a year?
A: Let's look at its operating data first:
The conversion efficiency of the energy storage device is 90%, so 1000 kWh of energy storage can actually release 900 kWh each time;
If two charges and two discharges are performed every day, the total discharge per day is 900 kWh × 2 = 1800 kWh;
Calculated based on 330 working days a year, the total discharge for the whole year is 1800 kWh × 330 = 594,000 kWh.
If two charges and two discharges are performed every day, the total discharge per day is 900 kWh × 2 = 1800 kWh;
Calculated based on 330 working days a year, the total discharge for the whole year is 1800 kWh × 330 = 594,000 kWh.
Calculate the cost savings:
Using the price difference between valley and peak electricity (assuming the price difference is about 0.9 RMB per kWh), the electricity cost that can be saved in a year is 594,000 kWh × 0.9 RMB / kWh = 534,600 RMB.
In this way, a 1000 kWh energy storage device can save more than 500,000 RMB in electricity bills a year. Isn't its money-saving benefit very intuitive? Now you understand its value.
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