Solar Panel Installation & ROI

Solar Panel Installation & ROI: The evolution of solar energy started during the year 1954. Daryl Chapin, Calvin Fuller, and Gerald Pearson began developing the Silicon Photovoltaic Cells. These cells were considered the first solar cell which can be used to convert solar energy into power on an everyday basis for all electrical requirements. As time passes, there are now several advancements in technology fields that have enabled us to acquire more solar energy than before. This energy can be used further for our homes and our commercial buildings in a more efficient and effective manner than earlier.

Cost of Solar Energy 

To make it very precise, the overall cost of a typical rooftop solar panel system for a building may range between $3,000 and $12,000. This price range depends on certain factors: your location where you live, the size of the system you want to install, discounts and incentives provided by the state governments.  STCs provided by the federal government to the customers are basically meant to offer a significant discount to the customers who want to purchase a system. If you wish to install a larger system, then the cost of the system will be higher but at the same time, the price per watt will be less. 

Factors Affecting the Cost of Solar Installation

There is no doubt that there are several factors that affect the cost of solar installation in different ways, especially if we talk about the initial cost of the system.  

  • The Demand for Installations: Basically the average cost of installation fluctuates largely due to the supply and demand of the system in the solar market. It might be possible that some areas are not up to the mark or designed in such a way that the system can be installed easily. So in such cases, the cost will be eventually higher as the installers have to do a lot of effort to install your system properly. Then the other factor can be the time of the year as, during the beginning of autumn and spring season, the demand for the system is very less, so this will lead to a fall in the cost of the solar system.
  • Quality of the Solar Panels: Customers often think that every single panel is of the same quality. But in reality, it’s not true at all, the composition of each panel may vary and work more efficiently than the other. So if get the previous point, now you may have understood that the materials used for manufacturing the panels can also affect the cost of the panels depending on their efficiency level. So it is always good to go for the quality and not for the cheaper solar panels as it may cost you a bit but will help you to save more and be in the long run. 
  • Flat Roof: In order to get maximum output from your solar panels, the panels should be arranged in such a way towards the sunlight so that they can absorb more. If your roof is flat, then there is an option to add mounts or tilt to your roof as it will provide the correct direction for the panels. 
  • Condition of the Roof: The condition of your roof is very important as if your roof is not fine enough to install panels then the installers will charge you some extra amount to work on it for installation. Generally, it happens with the old roof as they might become delicate with time and installers need to be careful while working on it. 

ROI and Savings

  • Usually, solar energy systems come along with a warranty period of 10 to 15 years. This period is good enough for a system to pay for itself in a long run. Once the warranty period gets over, each kWh of the generated electricity will provide the full profit. 
  • There is no doubt on the fact that solar systems are a bit expensive to install and can be considered a big investment in the long run. But in most cases, it can generate savings eventually later on. How much time it takes to provide the benefit of saving depends on certain factors like total electricity usage, size of the panels, quality of the solar panels and the weather conditions. 
  • The return on investment largely depends on the feed-in tariff that you receive.  Feed-in tariffs are basically subsidies that you get for each kW of the excess electricity that you export to the energy grid. For your information, if you live in a rural area or you have a system installed before the year 2013 then also you are eligible enough to get the premium tariff benefits.  

Future Solar WA is known as Australia’s one of the best solar system providers. We offer the best range of solar systems by some of the well-known manufacturing brands all around the world. If you want to know more about solar panel installation then get in touch with us now and we will be there at your service. 

Solar Power – Facts About SOLIS Inverter

Solis inverter is a subsidiary company of Ginlong Company that provides a range of inverter products with superior quality and have the maximum reliability.  They are considered among the few inverter brands that have marked their place during the time when the demand for solar energy systems was at its peak level and people were impressed by its marketing strategy. Solis provides the best efficient products that are built with advanced technology and innovative ideas and that is the reason behind its massive success. 

To provide you with a brief knowledge of Solis inverters, let’s focus on some of the points that prove that Solis inverters are among the best solar inverter brands in the world. 

So comparing it with some other brands of inverters, the best thing about Solis inverters is that they provide maximum efficiency of about 98% and that also with the most affordable price ranges. It has a variety of ranges depending on the customer requirements for both residential and commercial purposes. 

Why Solis inverters are considered among the best solar inverters in Australia?  

Basically, there are several reasons behind it, let’s give a look at some of them below. 

  • These can produce maximum efficiency power between 1kW to 60kW
  • As they provide you with a wide range of inverter models, they have better efficiency levels from 97.5% to 98.3%.
  • To make it easier for you to use, they offer a user-friendly monitoring app along so that you can get the actual real-time readings
  • Since they often come with IP65 ratings that make them very much suitable enough for bad weather
  • They are very compact in size and very light in weight so they can be easily installed. 

Some Of The Distinctive Features of Solis Inverters

Let us talk now about some of the features of Solis inverters that make them different from the rest present in the market. 

  • Durable: The very first point to be noted is its durability. Solis inverters go through several testing procedures while the production process. So this helps in eliminating the chance of faults and defects that may cause problems in future for the equipment.  They offer premium products that have a long-running period warranty. 
  • Performance: Talking about the performance level of Solis inverters, they are compatible enough for all the weather changing temperatures because they are designed in such a way to operate efficiently. It does not matter where you live, these inverters will work efficiently whether they are three-phase or a single phase. 
  • Flexible Warranty: It provides the best warranty period of five years for its product which is very much important as it adds value to the inverter. Also, if you want to extend the warranty period of your inverter, you can extend it according to your requirements. Always make sure to check the warranty period provided by the inverter company a the time of purchase as it may change with time. 

There are also some other features that make it the best solar inverters and those are its smart and compact design, wi-fi compatibility, after-sales support services.  

What specifications do they offer?

Let’s have a quick look at some of the inverter models provided by Solis with their distinctive specifications:



  • Single-phase inverter along with multiple modes of working 
  • Maximum efficiency ranges up to 97.8%
  • Provides IP65 rating with corrosion resistance technology
  • Have Dual MPPT design
  • Ultra-low harmonic with THDi rate greater than 1.5%
  • Wi-Fi connectivity is showed through a real-time monitoring app
  • Power control system with DRM function technique



  • Official warranty of 5 years that can be extended to 20 years
  • 4G three-phase inverter
  • Maximum efficiency of 98.7%
  • Dual MPPT functionality with a voltage range between 160V-850V
  • Low harmonic distortion against grid with THDi less than 1.5%
  • Wi-Fi connectivity with a real-time monitoring app

Solis RHI-5K-48ES


  • Advanced prototypic hybrid PV inverter
  • Maximum efficiency of 97.5%
  • Dual MPPT in 3K, 3.6K and 5K versions
  • Integrated BMS system for monitoring
  • Integrated EMS system

Solis inverters provide a range of inverter options with different price tags. Some of them might be expensive, but they will totally worth it and will save your money over time. You choose from a variety of options depending on your requirements and budget. 

If you are planning to get a Solis inverter for your home, just visit our website Future Solar WA for more information.  And here, you will get all the answers to your queries related to the Solis inverter. Get in touch with our consultant and they will guide you thoroughly about solar energy system installation. 

Best Solar Panel Installers In Perth WA

Best Solar Panel Installers In Perth WA: We all know very well why most of the people in Australia are heading towards getting solar panels installed in their homes. There are almost 8 hours of direct sunlight we get in Australia and this can be used efficiently to generate solar power so that we can save more on electricity bills. Installing a solar panel system has more advantages than we actually think of it. But before choosing the right solar panel system, you must research the best residential solar installers in Perth WA for your commercial or residential property. So here we are Future Solar WA to guide you with some important points about solar installation along with their price ranges and benefits. 

Is Solar Panel Installation in Perth a smart investment option for you?

In the past few years, it has been noted that many people have opted for solar panel installers as they are providing great benefits to the customers. To make it understand, below are some points which indicates why solar panel installers Here are some of the main reasons why choosing solar panel installers in Perth is a great saving option for you:

1) Lowest Solar System Cost:

If we talk about the system cost, you will be happy to know that Perth provides the cheapest solar panel installers in the whole world. Just for an example, a system of 6.6 kW in Perth costs you around $4500 which includes the suitable solar panel and inverter as well. Apart from this, you can also add on the best system along with the other accessories as per your requirements so as to get the best returns.

2) Low Payback Time:

Now, when it comes to the payback period, it is also very low in Perth so it will definitely be a good option for savings. To make it more clear, let’s take the example of the 6.6 kW system. So if you install a 6.6 kW system to meet your daily energy requirements and electricity tariffs in Perth, then your payback period will be around 5 years and this is an amazing investment option for you. For those people who are not familiar with the term ‘payback period’, it is basically a time period in which you receive the total cost of a fully implemented solar installer back. Always remember, the less will be the payback period, the more return on investment you get. 

3) Decent Feed-In-Tariff:

The decent feed-in tariffs offered by the government and the other companies have been the reason behind the lowest price of solar installers in Perth. Your solar installer system generates enough solar energy if it gets large roof space and more sunlight, then it will send a good amount of energy back to the grid. This will enable the customer to get more feed-in tariff in their electricity bills after they self consumed the power as per their requirements. 

How do we choose the best solar systems in Perth WA?

Basically, there are only two components in a Grid-connected System: solar panels and inverters.

Solar Panel- Solar panels are used to absorb the sunlight and generate electrical power.  

Inverter- Inverters help to convert sunlight into electrical energy which can be used to run household appliances.  You can also add a monitor which will help the system to maximize the output of the energy.  

To get the best solar system for your home, always focus on the quality, size of the system required according to your usage, and the price of the system that determines whether it is suitable according to your range. 

Few things to be kept in mind: 

  • Always compare the solar panel efficiency among the preferred options while purchasing the solar system for your commercial or residential properties. Usually, the ideal efficiency of the solar system is 16-18%.
  • Another point you should check while purchasing the right solar system for you is its manufacturing warranty period against the industry as it should be between 10-25 years if you really want better efficiency and ROI.
  • Do check its durability while purchasing the right solar system panel for your house. The good durability will provide you with excellent system’s efficiency along with a greater return on investment in a low payback period.
  • If you live in a snowy or in an area having more wind flow, it is always suggested by the installers to choose a system that grants the IEC 61215 standards. 
  • Don’t chase only low price systems but always consider and compare the other factors as well like the system’s efficiency, reliability and warranty periods. 
  • Before choosing the right system for your house, look out your roof space, sunlight duration and your energy usage. If you have a larger area of roof space and high energy requirements also, then it will be beneficial for you to add more and more panels. But, if you do not have high energy requirements, then you can go for the smaller solar system within your budget. 

So while concluding this, before choosing the best solar panel system, first you need to understand your energy requirement and then after that look out for the most economical option that comes along with good brand quality and efficiency for the best return on investments. Once you find the list of best solar companies in Perth, choose accordingly. You can also get help by visiting our official website of Future Solar WA to make your decision more reliable.  We provide the best services from installation to guide you all along. 


Talking about the history of GoodWe Solar inverters, it was founded in Suzhou, China in the year 2010. The Australian market launched GoodWe inverters in the year 2012 along with a range of solar inverters for the use of both residential and commercial purposes. By the year 2019, GoodWe inverter installation reached 15GW and covered across 100 countries which was really a huge achievement. By that time, it marked its place in the top 5 single-phase string inverter suppliers throughout the world by one of the consultancy groups named Wood Mackenzie. 

By the year 202, GoodWe was granted the Top Brand PV seal in Australia through EUPD Research. It has also been named as the world’s first non- European inverter manufacturer and has been honored with VDE-AR-N 4110-2018 along with the certificate by the Rhineland Industries Service in the year 2020. 

You will be amazed to know that in comparison to other solar inverters in Australia, GoodWe is considered the most efficient inverter as it provides a standard efficiency of about 95-98% for residential purposes and 98.6% for commercial purposes. 

Characteristic Features of GoodWe Inverters

Now, let’s have a look at some of the silent features of the GoodWe inverters which makes them unique from others. 

  • Wide Range of Hybrid Inverter Offerings: GoodWe inverters produces a large range of storage inverters which often includes the single-phase LV hybrid solutions (ES, EM), single-phase AC coupled retrofit solutions (SBP), single-phase HV hybrid solutions (EH) and three-phase HV hybrid solutions (ET). So basically, GoodWe is set to be the best option for you if you are thinking to install a hybrid inverter for your battery. 
  • Multiple MPP Trackers: MPP Trackers stands for Maximum Power Point Trackers. It helps in discovering the actual possibilities of roof orientations that a string inverter can handle perfectly. If the panels are set up on different angles on the same MPPT, then the individual performance of each panel will be as same as that of the lower performing panel which will eventually affect the output. Also, The GoodWe inverters allow more MPPTs across various inverter sizes. Apart from this, GoodWe offers the only 3-MPPT single-phase inverter in the Australian market. This helps in eradicating the need of having a more expensive micro-inverter or power optimizer solution for the battery. 
  • DC Oversizing: DC oversizing implies installing more solar panel capacity than your inverter’s total output potential. This may look like a wastage of power, but the oversizing by 33% can be the best option to ensure a cost-effective design. The GoodWe inverters have DC oversizing range between 33-100%. However, the clean energy councils also permit the same conditions. 

GoodWe inverters have the best advantage as they offer 98.6% efficiency and extended warranty periods up to 25 years which makes them one of the best solar inverter brands in Australia.   

Models of GoodWe inverters: 

Let’s have a quick look at the models of GoodWe inverters:

XS Series


  • Single-phase inverter with 1MPPT 
  • The smallest inverter size is about an A4 paper and weighs only around 5.2 kg
  • Available in sizes ranging from 0.7-3kW
  • Offers 33% DC oversizing
  • Maximum efficiency of 97.6%

EH Series


  • Only residentially manufactured hybrid inverter range by GoodWe
  • Wide MPPT voltage range
  • They are compatible with high voltage batteries in the range of 85-450V 
  • Offers 33% DC oversizing 

MS Series


  • Industry-leading 3MPPT single phase inverter
  • Available in 5-10kW sizes
  • Powerful inverter weighing up to 22.5kg
  • Offers up to 100% DC oversizing

MT Series


  • 4MPPT three-phase models
  • Available in up to 80kW sizes
  • Focused on commercial applications
  • Offers up to 50% DC oversizing

GoodWe inverters also offer some other series of its inverters such as DNS Series, SDT Series, SDT G2 Series, SMT Series and others that offer a wide range of features. You can choose among them depending upon your requirement. 

If you want to know more about the solar inverters and their specifications visit our website of Future Solar WA. You will get all your answers related to solar inverters and we will help you to suggest the best inverter model suitable for you depending on your preference. 

Important Things About Inverter Sizing

Important Things About Inverter Sizing: With the passing years, renewable sources of energy are getting popular due to their positive impact on the environment and people are switching to solar energy gradually. The best part is, now the government is providing certain incentives to the people who are purchasing solar power systems. And due to this people want to install bigger sizes of solar systems as they are getting support from the government. Previously, most people had a 3kw solar power system along with 12 panels. But now, the most common size of the solar power system has become 6.6kw and it is the most commonly used solar power system and is requested by the customer who wants to replace their old systems.

There are few considered reasons behind the increase in system size which also results in decreasing the manufacturing cost of solar systems.  This is also the main reason that made solar panels much more affordable for people than they were earlier. 

Since the cost of solar power systems are decreasing due to which people are switching or going for bigger size solar power systems as it has become more affordable now. The government has introduced rebates for STCs which means more panels resulting in more STCs for the customers. This will help in getting bigger discounts on the sale of solar systems. 

A 6.6kw system along with a battery is a great size system providing better value and output. A 6.6kw system means 6.6kw of solar panels that are installed on the rooftop along with a 5kw inverter. It is considered the most efficient and commonly used size of the solar panel system. 

The efficiency of the battery storage system matters the most as it converts the Direct current produced by the solar panels into an Alternating current that is used by the grid to provide power to your house. The question may arise in your mind that how does the size of an inverter affect the system’s efficiency. So, let’s discuss this issue briefly so that you can make the right decision regarding future solar installation. 

Inverter under-sizing

It has actually become a common and widely accepted practice in Australia and is sometimes referred to as the term “overclocking’.

There might be confusion regarding the combination of panels and the inverter that has been set. So, according to the Clean Energy Council guidelines and the network distributors that own the poles and lines, it is stated that the panel to inverter ratio should be completely legitimate. The rule is that you are allowed to get an inverter with 5kW capacity and add 6.6kW of solar panels as system size should be by 133%. 

Benefits of having a solar system of 6.6kW

The main reason behind the massive growth in demand for a 6.6kw solar power system size is that it provides you with the benefit of maximizing the STC and that too without upgrading your system inverter size. So eventually it helps the customer to save more if we look from the perspective for money value. It also lowers the purchasing cost of the solar power system as the 5kw inverter cost is less than the 6kw of inverters. There are a variety of ranges present in the market for 5kw single-phase inverters that pave the way for competition in the market for prices. Some of the renowned network distributors do not allow for more than 5kw inverter but they usually approve the panels oversized up to 133% of the total inverter’s capacity. So the equation will be: 5kw x 133% = 6.6kw. 

The solar system of 6.6kw will provide you with more efficient results. Nowadays it has become very ordinary in Australia to practice inverter under-sizing or solar panels over-sizing so as to get the best solar power system along with maximum output range. 

A solar inverter functions ideally along with its operating window that further includes the inverter’s specifications. As the power input coming from the solar panels fluctuates up and down, the inverter’s ability to convert it from DC electricity to AC electricity efficiently may differ. As far as the power input coming out from the solar panels falls within the range of the window, the inverter is often considered to be operating effectively. 

Sometimes your installer suggests you get an undersized inverter with your system. This is because they might have observed less sunlight is coming on your solar panels than it was expected. It may be due to a change in location & climate, the orientation of your panels, or any other factors. Therefore the best solution to this is to add more panels by installing them along with a small-sized inverter. This will lead to the better overall performance of the solar power system.  

Inverters are designed in such a way that they can handle lower power inputs than their defined capacity but there are limitations to this as well. If you think of installing an inverter that has a maximum capacity greater than the nominal capacity of the panel array, then it might be suitable for expanding your solar panel array but it is not usually recommended. This is because the overall energy coming from your solar system may be lower than from the system with the under-sized inverter. So, it is very important to ask your installer about how your system will perform if you add an oversized inverter to your system in future. Always check the balance between the systems configurations before making any decision.

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