ESS Battery Systems
ESS Battery systems are skyrocketing in popularity throughout the world. The global battery industry has had an annual growth rate of more than 10% from 2021 to 2022.
Guess why!
1.Russia-Ukraine War
2.Aftermath of COVID 19
These factors have disrupted the fuel supply chains in the world. In turn, almost all the countries in the world were affected by increasing fuel and energy prices as well as consistent power cuts. And the sad news is that it will persist for a long time.
How can you be immune to energy price hikes?
Lithium Iron Phosphate Batteries for ESS Battery Systems
When speaking of ESS Battery systems, there are several types that you can find in the market. Among all the ESS battery types, market research shows that LiFePO4 (Lithium Iron Phosphate) batteries are taking charge compared to the rest.
But what makes Akumulatory LiFePO4 better?
- The cycle life of LiFePO4 is over four times higher than its predecessor, Lithium-ion batteries
- High charge efficiency – Charges way faster than other types
- The self-discharge rate is low (2%) – when the battery is not in use
- Depth of discharge is 100% – – But you can’t usually use all that energy without damaging the battery. So that’s where depth of discharge comes into play.
What is Depth of Discharge (DOD)?
The depth of discharge of an ESS battery system is the factor that tells the user how much of the total battery capacity you can use without compromising its lifespan.For instance, 80% DOD means that you can use only up to 80% of the total battery capacity without compromising its lifespan.
How Does Depth of Discharge Affect Cycle Life?
Cycle life has an inverse relationship with depth of discharge.The higher the battery’s depth of discharge and the more often it is discharged, the fewer cycle lives it will have.
For example, a battery that’s continually discharged 90% will have fewer life cycles than if it were only discharged 30%.That’s why not recommended to discharge a battery entirely.Because doing so would shortens its cycle life.
Industry Safety Standards
There are several safety standards for the safety of ESS Battery Systems which are used in the USA and European Union:
1.IEC 62619 – Safety Standard for Secondary Lithium Cells and Batteries
2.UL 9540 – Standard for Energy Storage Systems
3.UL 1973 – Batteries for the Use of Auxiliary Power Applications
4.UL 1642 – Standard for Lithium Batteries
When selecting your ESS Battery, please make sure that your product adheres to the standard because safety is number one.
Battery Health Monitoring for Your ESS Battery System
Battery health monitoring, control and optimization are done by the battery management system. It is an inbuilt control mechanism in the ESS battery system.
Proper ESS battery systems have an LCD screen showing all the monitoring and control mechanisms that are in place, and also, showing the status of the system.
Lifespan of an ESS Battery System
Usually, a good ESS battery system should have a lifespan of at least 10 years (3650 cycles). The no. of cycles decides the lifespan of a battery. When you charge the battery once and then you discharge it, you can call it a cycle. Normally, one cycle happens once a day.
However, there are better ESS battery systems from 6000 cycles (16 years) to even 10000 cycles (27 years of durability). When you choose your ESS battery, pay special attention to the durability of the battery.
Scalability of Your ESS Battery System
Another crucial factor that you need to consider when buying your ESS battery system is its scalability. Sometimes, if your system is not scalable, you will not be able to cope with your growing energy needs. In other words, you need to be able to increase the capacity of the system when you need.
Else you will have to install a new ESS battery system all over again incurring cost, time, and effort. It saves all the trouble if you can add extra batteries as you increase your energy consumption. Make sure you get that covered when you buy!
That’s all that you need to know before buying your ESS battery. It needs to be a safe system therefore you will need LiFePO4 batteries in the package. So, make sure to check all of the above before buying your ESS battery.