Lithium-Ion Batteries vs Other Batteries for Off-Grid Solar System

Solar panels have been the best source of power for people living in Australia and around the world. In order to utilize the energy coming from the sun, solar panels must be oriented at a particular angle and at a suitable location. They work at their level best when they are placed in cooler environments where sun hours are more.

As far as the Off-Grid solar system is concerned, most people living in Australia are using it now. But there is always some confusion regarding the choice of batteries because of the large number of options available. For the past few years, Lead-Acid Batteries are in demand. Currently, Li-Ion batteries are being used. Let’s take a look at why Li-Ion batteries are preferred by most people despite the fact that they are less affordable.

How can Li-Ion Batteries help us?

These batteries have been used for a number of reasons. Taking into account the features associated with them, they have become quite common. If your solar systems are not designed for lead-acid batteries, there is no way you should avoid using these batteries. Some manufacturers these days are designing systems that are feasible with these batteries and the numbers are expected to go up in near future. The characteristic features of these batteries include higher energy density and ease of transport.

Li-Ion Batteries vs Lead-Acid Batteries; Which Ones are Best?

The capital cost of Li-Ion batteries is surely high due to their better efficiency and long life.

The initial cost involves:

  • The cost of the battery you’re using
  •  Rating
  • Addition of more batteries

The very first thing we see when we go out to buy something is its cost or simply the capital cost. The same is the case here with Li-Ion battery. The capital cost of these batteries is a bit more but the way they save you a lot of money, in the long run, makes you choose them in the first place.

Which Advantages of Li-Ion Batteries Make You Choose Them?

These batteries have the advantage that they don’t get damaged when subjected to deep discharging Moreover, these batteries have the tendency to work in all conditions and also last long. However, they just need a Battery Management System for them to work well enough. 

The following graph shows how these Li-Ion batteries work in a better way as compared to Lead-Acid Batteries in different climates.

Battery Temperature Spec

As mentioned earlier, the energy density of these batteries is high for which they don’t require much space.                                    

If we talk about the lifespan of Li-Ion batteries, Lead-Acid Batteries get damaged when their charging goes below a certain percentage but Li-Ion Batteries are different in this regard. Taking into account all these factors, we may conclude that Li-Ion Batteries are best to be used for Off-Grid systems.

Want to talk to Australia’s most trusted Solar retailer?

At AusPac Solar, we think it’s important to provide our customers with the highest quality solar installations and electrical work that come with the promise of ongoing servicing and maintenance support.

If you would like to discuss any of the points above or you are just wanting to engage with a genuine, customer-focused Solar Installation Company that will deliver a solar installation at a fair and reasonable price, give our friendly team a call on 1300 197 237 or contact us here and one of our solar experts will be in touch.

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7kW Solar Systems: Prices, Output, and Return on Investment 

Solar panels are now installed in almost all countries. If we talk about Australia, more than 2 million houses have now installed solar panels in order to get rid of increased energy prices. The ideal size of a solar system is based on the demand for electricity for your homes and offices. However, for homes, usually, a 5kW solar system works efficiently while a 7kW is not affordable for most people. Let’s take a look at the Prices, Output, and Return on Investment for 6.6kW and 7kW solar systems.

Space and Solar Panels Required for a 7kW Solar System

Since a 5kW solar system requires 16-20 panels in order to generate 20-25kWh of electricity, a 7kW solar system is bigger as compared to a 5kW solar system and needs almost 26-30 panels and the area required for this number of panels will be 40-50 m2 or a bit more depending on the location as well as the orientation of panels.

Price for a 7kW Solar System 

Taking into account the fact that a bigger-sized solar system generates more power than a small-sized solar system, its cost will also be more. The average price for a 7kW solar system in Australia is almost $1.1/watt. The table below gives an idea about the prices of 7kW solar systems in different cities of Australia till the end of 2019. The prices were increased later due to the crisis caused by the pandemic last year.

7kW Solar Price

The output of a 7kW Solar System

The yield of an any-sized solar system depends upon a number of factors. Some of them are mentioned below:

  • The location where panels are installed
  • Orientation of the panels along with tilt angle
  • Amount of sunlight received by the panels per day
  • Operating Temperature 

The following table gives an idea about the electricity generation each day (on average) in capital cities of Australia: 

                                             7kW Solar System

CitiesEnergy Production on Daily Basis(kWh)
                    Brisbane                            27-30
                    Darwin                              32
                    Hobart                           21-24
                    Melbourne                           22-26
                    Adelaide                           26-30
                    Sydney                           24-27
                    Perth                          28-32
                    Canberra                          26-29

Return on Investment from a 7kW Solar System

Self-consumption is one of the most important factors that must be taken into account before thinking about payback. This means the electricity used by your home will decide how much amount you’re going to get in return. For example, if your system generates electricity, there is no need for you to import it from the grid. Rather, if the system is producing more electricity than what is required for household usage, you may export that to the grid. In this way, you will not only be able to save money but you can earn more money as well in return. Since a 7kW solar system is of a bigger size, you can earn more with it if you let it work effectively.

Want to talk to Australia’s most trusted Solar retailer?

At AusPac Solar, we think it’s important to provide our customers with the highest quality solar installations and electrical work that come with the promise of ongoing servicing and maintenance support.

If you would like to discuss any of the points above or you are just wanting to engage with a genuine, customer-focused solar company that will deliver a Solar Panel Installation at a fair and reasonable price, give our friendly team a call on 1300 197 237 or contact us here and one of our solar experts will be in touch.

Energy Efficient Homes Could Save Households $1000-plus each year on Bills

Solar energy has become the most used form of energy nowadays because the sun keeps on providing the Earth with unlimited amount of energy which can easily be converted to power for household usage and other purposes. The only thing that is required is the use of solar panels along with the batteries which help store that energy so that you may use it later when sun isn’t there. 

But there are certain factors that decide whether or not the solar panels will generate power. These factors include the orientation and location of panels along with their tilt angle. The space you have to install the panels is another important factor. However, one more thing that matters the most is your budget. It decides whether you should install a bigger-sized solar system or a smaller one. It also lets you know about how much electricity you will have and how much you need to import or export from the national grid. 

All in all, the budget must be good enough to meet your energy requirements. In Australia, some states get more sunshine than others as a result of which power output from the panels is different in one state as compared to the other. However, no matter which state you live in, you can save a large amount of money by installing these panels.

Impact of Household Budget on Efficiency of Panels

The following table shows the Impact of Household Budget on Efficiency of Panels.

Table

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The investment made by the government in solar technology to urge a lot of people to come towards solar panels and generation of power by them in order to lessen the burden on the national grid has proved to be the best in a way that it has saved people a lot of money which they may use for various purposes. Previously, they had to pay the same amount in terms of electricity bills. Energy efficiency may also help you save up to $1100 a year which is more than the electricity bill of a single home for 6 months. But all of this depends upon the policies announced by the government as well as the number of panels you have installed, their efficiencies, sizes and the amount of sunlight they get each day.

How Solar Feed-in tariffs can Help you Earn More?

Solar Feed-in tariffs work in a way that if your panels are generating more power than what is required for your household usage, you can transport the extra amount of power to national power lines and you’ll be paid in return. Hence, you can save some money in this way as well which is why Solar System Setup is best in each regard.

Want to talk to Australia’s most trusted Solar retailer?

At AusPac Solar, we think it’s important to provide our customers with the highest quality solar installations and electrical work that come with the promise of ongoing servicing and maintenance support.

If you would like to discuss any of the points above or you are just wanting to engage with a genuine, customer-focused solar company that will deliver a solar installation at a fair and reasonable price, give our friendly team a call on 1300 197 237 or contact us here and one of our solar experts will be in touch.