Home battery backup and its need in the present era

Home battery backup and its need in the present era

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We are living in the era of technology and we cannot work, study or live a normal life without electric power as most devices and equipment depend on electricity to work. Now power is a part of our life. And this dependency makes us more vulnerable to being destroyed by a power outage which can crash our business and economy. So the question of sustainability rises. 

When a power outage occurs in cities and rural areas, a power backup system like powerwall is used.People have been using fuel-consuming power generators for a long period so that light stays when power is out. With time people started using newer technology for power storing. Home battery backup prevailed in the current scenario. This article is going to share detailed knowledge about home battery backup and its need in the present era.

Home battery backup vs generators-which one is better

Emergency management:

Home backup batteries stores power in large amounts with high efficiency that is more reliable in times of crisis. How much electricity a generator generates depends entirely on how much fuel it has. But in times of emergency like natural disasters or fuel crises it would fail to stand by your requirement.

Power storage capacity:

Several home backup batteries installed and fed by solar panel are bigger energy storage system with excessive utilities compared to the generator

Power source:

Generators generate power by using fuel excessively while the home batteries produce energy by solar panel and grids.

Home battery backup prevailed in the current scenario

Effect on the ecosystem:

Home battery backup takes energy from electricity stations and solar systems to work which has no impact on weather. This back system does not make noise nor does it produce exhaust fumes or smoke while working and run quietly. It is a co-friendly backup system.

Generators use a high amount of fuels like diesel, gas, and propane which produce a large amount of CO2 and harms the atmosphere badly. Also this generators make a lot of noise when running.

Requirement of regular Checkup:

Home battery backup needs a little attention for its maintenance from time to time. Mostly it is installed with solar panel or grid. An owner with less knowledge of electrical problems can easily handle maintenance or regular checkup of the installation and other attachment points. Easy handling makes this system more friendly and convenient for the consumers.

On the other hand, generators need much attention to check the problems related to their working. Only an expert electrician can check the efficiency faults in the system. Its fuel-consuming feature makes it more problematic and regular checkup after every half a month is unavoidable.

Cost comparison:

A generator for household operation is worth 3000 to 5000 dollars before installation but the cost of fuel will add to its original cost that will increase day to day. So large amount of source energy is consumed to make the power that is difficult to meet in the time of fuel outage.

There are no fuel cost and high maintenance demands for home battery backup

On the contrary, Home battery backup system are cost-effective, not to mention when they’re installed with solar panels. Its upfront cost is 3000 to 6000 dollars before installation without a solar system that is 7000 to 10,000 dollars with a solar unit. 

But there are no fuel cost and high maintenance demands for home battery backup, it do not continue to increase costs further. Not only this, its payback compensates its original cost which is a distinct feature of the home battery backup system.

Unchecked supply:

The home battery backup system supplies power unchecked and starts functioning within seconds sharp when power from the grid goes, while the generators take a minute to start backing up in the era of the internet, power supply breakup can interrupt most of the precious working in the business centers. So this problem bothers a lot to the consumers. Only a home battery backup can solve it.

Is it worth getting a home battery

As the prices of electricity are increasing day by day, there is also a growing demand for home battery backup. The home energy storage battery not only stores back up for several hours during grid goes. 

It’s also a good idea to cut short the electricity expenses. Not only one can minimize the expenses but he or she can get a profit due to the continuous supply of power in work stations which might be interrupted if batteries would not available.

One may not be able to bear the shortfall of a single moment in heavy industries as it can cause excessive loss. Moreover, home battery backup can help you maximize the benefits when you are producing energy by using solar panel or wind power system instead of using a grid line.

Home battery backup needs a little attention for its maintenance from time to tim

What to look for when choosing a home battery backup

The main things to check for choosing a battery is its capacity to handle emergency and how long it is available to supply the appliances. There are certain points to check when choosing a home battery backup as there is brand competition in markets.

Battery type:

The first thing is to determine the right type of battery. The common types of batteries are lead acid and lithium ion batteries. Both of them have advantages and disadvantages. However, lithium ion battery is the most common type nowadays because it has a higher energy density, longer cycle life and lighter weight.


Supply of storage which it delivers in unit time. This shows the capability to bear several appliances at once. So check out the specification mentioned in the user guide for home battery backup.

Storage capacity:

See in KWh in the guide. It’s a unique specification that shows how much power is stored in the battery by charging it.


To check the efficiency means a difference in battery supplies energy to the appliances from the total storage fed by solar or grid system. The remaining is efficiency.

What to look for when choosing a home battery backup

Life Guarantee:

Note the warranty mentioned which should be approximately 10 years like lithium ion battery.


Check if it is heat and temperature resistant.


Consider battery cost but not compromise over other specific features.

The components of the whole home battery backup system

An inward view: An ordinary whole house battery backup system includes:

Charger: Connects the battery with Ac or Dc installation;

Inverter: Transforms the current in Ac mode in case it is getting energy from Dc installation (i.e. solar panel);

Solar panel: Convert light energy into electricity;

Load:Consumption of electricity;

Battery: Store excess solar energy to generate electricity.

When the mains is normal, the load is supplied by the photovoltaic grid-connected system and the mains. When the mains is cut off, the energy storage system and the photovoltaic grid-connected system are jointly supplying power. 

The off-grid home energy storage system is independent and does not have any electrical connection to the power grid, so the whole system does not need grid-connected inverters, and the photovoltaic inverters can meet the requirements.

What is the best home battery backup system

As the solar panel supported, home backup batteries are the best in use today. People rely on uninterrupted power supply backups today because it’s a matter of their existence in the realm of business and other power projects. 

But one thing that disturbs people is when their batteries discharge during a long absence of sun. When the sun does not appear for many days in hazy areas the solar supported batteries fail.

how long do home battery backups last

Powerwall comes forward nowadays to help people to avoid the situation. The best feature of the powerwall is it stores extra energy during the time of peak sun or when the prices of electricity are low and it supplies power when a long outage of electricity occurs. 

Moreover, powerwall can be controlled intelligently. It’s necessary to be stayed connected with Wi-Fi and internet sources to keep it working during outage time. The most common powerwall product on the market is Tesla powerwall.

It can be installed in or out of the shed. The wall of power can be enlarged by increasing its numbers to enhance more and more power supply. Concerning material used in batteries the lithium-ion battery is suitable for home battery backup, it can be used continuously for a long time instead of an Lead acid battery since lithium ion battery has much longer cycle life and high energy density.

How much does a Whole house battery backup cost and how long do home battery backups last

The consumption of power depends on several appliances. Time of power supply retention is also directly proportional to the capacity of the battery. The bigger the battery the supply retains for a long time and vice versa.

A 10 KW battery can run an ordinary home which requires 800 – 1000 W for 7-8 hours daily on recharge. The bigger batteries yield from 11 to 13 hours per day during a power outage. The cost of a 10KWh PowerWall 48V 200Ah Deep Cycle Wall Mounted Lifepo4 Battery is generally$3,699.00.

How big of a battery backup do I need for my house

Depending on the requirement of the house we need a big or small backup system. If someone has a normal home appliance like fans, lights, freezers, and other small motors he can use a single battery with or without solar supported battery. 

If one has to run the house equipped with large electric appliances he can use a bigger backup battery depending on the power requirement.

Is a portable power station good for home battery backup

To measure the requirement of the power we have a simple formula to specify a battery or many batteries. Firstly determine how many days you need to back up depending on power outage frequency in a certain area. 

If you have three days to be backed up then you need to construct a power bank according to the supply required for three days.

Now you can estimate the total number of watts to be used in three days and create relativity between need and supply by dividing simply. This is how you can sort out the size and number of batteries you need.

Is a portable power station good for home battery backup

Yes, a portable power station is a good backup for house appliances. You can enjoy its utilities while outing or camping. It can run the TV, freezer, and lights and can charge smartphones. Although the power station is less in capacity, it can feed through different ports on it.

Does the powerwall work during a power outage

Yes, a powerwall can work in an outage when It charged by the grid or solar panel. If it is installed with solar panel it depends on. If the weather is cloudy and once it gets drained with the time it cannot be charged again up till next sun time is started in between morning to evening.

Does the powerwall work without internet

Internet is required only to operate the Tesla powerwall through mobile. Otherwise, the powerwall can supply power after getting charged by the solar system. If a powerwall is installed along with the solar system it cannot be able to work with the grid supply.

Can I have battery storage without solar

Of course, you have battery storage captured during grid time and you can use your battery in outage time. And you can use your battery without solar panel attachment.

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