Solar Batteries For Home Energy Storage
Installing solar batteries with solar panels is becoming more and more common now.There are many benefits to using solar battery, such as energy independence and emergency backup power.But when it comes to buying those batteries, it’s hard to make a choice, and we don’t even know what to buy.In this article, we discuss about solar batteries for which you need to know to help you pick the right one for your home.
Definition of solar battery
More than a few homeowners have wondered what this about, since Tesla introduced the Powerwall battery,a few years ago.For users of solar panels, the appeal of lithium-ion battery makes sense which being used to store solar energy. So, lithium-ion battery is the solar battery. Typically, home solar panels generate electricity to power a home on a sunny day.If they have enough surplus, they can sell it to the local utility company.
How to compare ?
As you consider your batteries, you’ll come across a lot of complicated product specifications. The most important ones to use during your evaluation are the power and capacity ratings, the depth of discharge, the efficiency rating, and the warranty.
1. Capacity ratings: The capacity rating is represent the actual supply of (or how much) electricity you have stored in your battery.
2. Depth of discharge: Before we have to recharge our battery, a higher DoD rating allows us to use more of the energy stored in our solar battery.
3. Round-trip efficiency: compared to the amount of energy it took to store,round-trip efficiency represents the amount of energy we can use from our solar battery.
4. Warranties: Warranty of a solar battery will give us an idea of how long the battery should last. Most high quality solar batteries have a battery life of at least 10 years with regular use.
Different types
Solar batteries typically are made with one of three chemical compositions: lead acid,saltwater, lithium ion. In most cases, the best option for a solar panel system are lithium ion batteries. However, other battery types are more affordable.
Lead acid solar batteries
Lead acid batteries have been used for energy storage for decades. While compared to other battery types, they have a relatively short life and lower DoD and a larger size. However,they are the least expensive one.
Saltwater solar batteries
the saltwater battery is a newcomer in the home energy storage. Unlike other solar batteries, saltwater batteries relying instead on saltwater electrolytes, and don’t contain heavy metals. While batteries that use heavy metals, batteries need to be disposed of with special processes, a saltwater battery is easily recycled. However, As a new technology, saltwater batteries are relatively untested. And Aquion, a company that produce solar batteries for home use, filed for bankruptcy in 2017.
Lithium ion solar batteries
Lithium-ion batteries are a new type of deep-cycle battery technology. They also have a higher DoD and longer lifespan when compared to lead acid batteries. And also they are lighter and more compact than lead acid batteries. However, the price of lithium ion batteries are much higher than counterparts.
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