How many panels or what size system will I need?

Getting a solar system for your home can give you the opportunity to save on your electric bills. But it is very important that you get the right system for your needs. Here are some of the most important things you should consider before choosing your new system.

Getting a solar system for your home can give you the opportunity to save on your electricity bills. But it is very important that you get the right system for your needs. How much power you use, what you have available to spend, and other factors will all play a role. Here are some of the most important things you should consider before choosing your new system.

How Many Solar Panels Do You Need for Your Home?

The peak output is what you want to look at when deciding the number of solar panels to use for your home. That output, though, is for a perfect, sunny day. You will not see the same level of output when you have overcast conditions or if a part of your roof is frequently blocked or shaded by trees or other buildings. How many panels you need, though, will come down to two things: how much energy you use, and how much you have or want to spend on the solar panel system. An additional consideration will be the size of the roof where you’re placing the panels, as there is only so much space available for them.

Understanding Electricity Consumption Patterns to Determine Output

The ways in which you use electricity matter when deciding how many solar panels you will need or what size system will be the best for your specific situation. Using electricity more evenly throughout the day can mean the need for a smaller system, mostly because there is not going to be a large drain on the system at any point during a 24-hour period. If you have a large home and family, though, or you use a large amount of electricity at one time, having a large system or more panels can be the right choice.

How Much Are You Prepared to Spend?

The amount you want to spend for your solar system is an important factor to consider. Some people even borrow against their mortgage in order to buy a larger system with the idea that it will pay off for them in the long run. That is not right for everyone, but it is well worth discussing when it comes to how you plan to fund your system and whether you should choose a larger one instead of a smaller one that may be more affordable up front.

Average kWh Per System Size

The average number of kWh (kilowatt hours) can be calculated with the understanding that every one kW of solar panels, you can expect to get about four kWh per day of electricity. That’s a rough estimate, and the amount can vary slightly from day to day. How much sunlight you receive, the time of year, and your location, as well as how the panels are oriented, all play a role in the actual production of electricity from your solar system.

By working with a good installer, you can focus on how many panels and the size of the system with confidence that you are getting quality answers to your questions. That will give you the maximum value for your new solar system.

If you are interested in installing solar on your Sydney home, contact Soltek Energy to get a quote.

What Are the Warranties on Panels and Inverters?

Choosing the right panels and inverters for your solar energy system is important, but so is making sure those components are warranted properly. But there is a bit of a catch to the warranty on these items, in that there are actually four separate warranties to be considered. Here is what you need to know about the most common warranties for these products.

Choosing the right panels and inverters for your solar energy system is important, but so is making sure those components are warranted properly. If they stop working for some reason or you have other problems with them, you want them to be covered. But there is a bit of a catch to the warranty on these items, in that there are actually four separate warranties to be considered. Here is what you need to know about the most common warranties for these products.

Panel Performance Warranty

The performance warranty on solar panels is generally for 25 years, although some manufacturers raise this warranty to 30 years, instead. When an installation company talks about the warranty on solar panels being for 25 years, it is generally on the performance only and does not cover other aspects of the system or the panels themselves.

Panel Product Warranty

Typically, the panel product warranty is between ten and fifteen years.
There are panels that also have 25 years product warranty, depending on the company that installs the panels and what they’re offering. This is far different — and far shorter — than the
panel performance warranty. However, many people incorrectly assume that the panel product warranty is the same as the panel performance warranty. That could lead them to thinking they have more coverage than they actually do, and for a longer period of time, as well.

Inverter Warranty

The Inverter warranty is almost always for five years, but there are sometimes upgrade options that can push this warranty to 10 years or longer. These upgrades are generally not free, and may be offered at the time of the sale or the time of the installation. Additional warranties can provide good value if they are low in cost, but it is important to understand how much the price will rise.

Installation Warranty

The warranty for the installation is provided by the installer, not the manufacturer of the solar panels or other system components. Usually this warranty is for one or two years. In some cases, installation warranties can be 10 years long, but this is not common. Asking your installer about the length of their warranty is vital to having the knowledge you need about your system.

What Should You Ask Your Installer About Warranties?

Before choosing an installation company for your solar panels and inverters, make sure to ask that company about their warranties. The installer may say there is a 25 year warranty, but it is important to understand that does not cover everything. While it may cover the panel performance, other aspects of the job have warranties that are much shorter. It is very important to understand exactly what you are getting.

Who Should You Speak to About Product Issues or Safety Risks?

If you have product issues or you see something you believe is a safety risk, contacting your installer is the first step. They are knowledgeable about the job they completed for you, and have all the information about the manufacturers of the products they installed, as well. Whether or not your panels or inverters are still under warranty, it is very important that you address safety risks and other problems promptly. With care and proper maintenance, your solar panels and inverters can provide good value and last a long time.

If you are interested in installing solar on your Sydney home, contact Soltek Energy to get a quote.

True or False? Solar is too expensive

Solar panels have a wide range in purchase prices. Some 5 kW systems can be purchased for under $4000. On the higher end, these systems can cost upwards of $10,000. For those interested in purchasing solar panels, one of the first questions they normally ask is whether or not there is a huge difference in the efficiency and effectiveness of solar panels sitting on the lower and higher ends of the price range. The answer is yes, there is, and we would encourage you to understand the benefit of investing in a quality solar system.

Solar Panel Study in Australia

There hasn’t been a lot of research on the differences between lower and higher-end solar panels. This is mainly because the solar boom didn’t start until the turn of the century. In Australia, the solar boom hit in 2007. This means solar panel researchers now have about a decade’s worth of Australian data to analyse to see whether the higher-end panels performed better than the cheaper ones.

Recent studies conducted using the data confirm that you get what you pay for when it comes to solar panels. When you pay a bit more, this results in the system having a more robust inverter. This translates into higher levels of efficiency, meaning a higher output. During the life of the system, the higher quality parts making up the more expensive panels produce a higher return on investment.

It was also found that not only did the cheaper systems produce less efficiency, but their inverters didn’t last nearly as long as the inverters on the more expensive systems. Inverters on cheaper systems lasted an average of five years while higher-end inverters lasted anywhere from 10 to 13 years. This is a clear indication that the more expensive systems are made using higher quality parts than the cheaper systems, and the use of higher quality parts results in a longer-lasting system that provides a greater return on investment.

It’s also been found that higher-quality parts make solar panel systems safer than ones with cheaper parts. Furthermore, many of the cheaper systems don’t come with warranties or don’t meet certain criteria to qualify for some rebate programs.

How to Choose Solar Panel System

When shopping for a solar panel system, it is important to compare systems. You want a system that comes with high-quality parts, a warranty, customer service options, and more. It’s also important to purchase one from a company with good reviews and that has been working in the industry for many years.

There is no one-size-fits-all system package that works for every customer. Your system has to be customized to meet your needs. This will largely impact the total overall cost of the system and its installation time. However, there’s no need to think solar systems are too expensive. They can be if you go with the cheap systems and have to replace their inverters every five years, but when you go with a system that has quality parts, you can definitely achieve a good return on your investment.

If you are interested in installing solar on your Sydney home, contact Soltek Energy to get a quote.