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Are Solar Batteries Worth It?

Are Solar Batteries Worth It?

PV solar is the future of our planet. Already PV systems exist on one third of roofs across Australia. That’s more than 3 million homes. 6 per cent of these solar households also have solar batteries. 

Is there a benefit to installing a battery with your solar system? Is it worth retrofitting your existing solar system with a battery?

What is a solar battery?

A solar battery stores excess solar energy for later consumption. A solar battery is a device that can assist with the nighttime costs of electricity or power your home during a blackout.

A solar battery works by charging and discharging DC electricity. A DC coupled solar battery requires a multi-mode inverter to be installed. Multi-mode inverters have the capability to convert direct current (DC) produced by a solar system into DC electricity to charge the battery.

A standard solar inverter only has the capability to convert the DC into alternating current (AC) electricity.

An AC coupled battery works by converting the AC output by a standard solar inverter into DC to charge the battery.

All batteries charge and discharge DC electricity. An AC coupled battery includes a battery inverter which converts AC to DC.

Is there a benefit to installing a battery with your solar system?

The benefit of installing a battery with your solar system comes in a couple of ways. Many solar batteries have the capability to back-up your home during a power outage. Also, by storing energy during the day, the stored energy can power your home at nighttime. Remember, solar panels only generate electricity when the sun is shining.

Is it worth retrofitting your existing solar system with a battery?

The addition of a battery to a solar system can cost anywhere from $5,000 to $15,000. Different batteries meet different needs. To understand your needs, it’s important to consult with your solar installer.

Retrofitting a battery provides safety and reduces electricity bills further than without the battery.

The standard return on investment for an appropriately sized solar system is 3 to 5 years. Adding a battery return on investment can range around 6 to 8 years.

By using tools such as signing up to a virtual powerplant plan, this return on investment may reduce by a couple of years.

A virtual powerplant, or VPP, links thousands of batteries in an area. A plan such as Amber Electric’s VPP plan offers wholesale prices on electricity also.

It is always worth considering your needs and what you hope to achieve with your solar system.

FAQs

Q: What is a solar battery?

A: A solar battery, also known as a solar energy storage system or solar battery storage, is a device that stores excess energy generated by solar panels during the day for use at night or during periods of low sunlight.

Q: How do solar batteries work?

A: Solar batteries store energy in the form of electricity generated by solar panels. When the panels produce more electricity than is needed, the excess energy is stored in the battery. The stored energy can then be used when the panels are not producing electricity, such as at night or during cloudy weather.

Q: What are the benefits of using a solar battery?

A: Using a solar battery can help you maximise the use of solar energy by storing excess energy for later use. This can help reduce your reliance on the grid and lower your electricity bills. Solar batteries also provide backup power during outages and can help reduce your carbon footprint by using clean, renewable energy.

Q: How long do solar batteries last?

A: The lifespan of a solar battery depends on factors such as the type of battery, how often it is cycled (charged and discharged), and how well it is maintained. On average, most solar batteries last between 5 to 15 years.

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