Pros & Cons of Solar Energy


Solar to a home is veggie garden to a human. Wait, what? We’re basically saying it’s a way to manage your own sustenance. In the case of solar specifically, we’re talking about a way to generate energy that you can then use to power all the appliances and gadgets around your house. But whilst starting a veggie patch might just need you to pop down to Bunnings, solar panels require a bit more thought. We’re going to break this down in a classic pros and cons battle to help you decide whether they’re right for you.

The Pros & Cons of Solar Energy

Solar Energy Advantages Solar Energy Disadvantages
Reduces your power bill High upfront cost
Creates renewable energy Takes up a lot of roof space
Lowers your household carbon emissions Less production on overcast or short days
Excess power can be sold back into the grid Become less efficient with time
Low maintenance Less effective on certain rooftops/in certain climates

Advantages of solar energy

It’s hard to deny that getting solar has its benefits, but how far those benefits stretch may be new info to some. We’ve listed out five advantages you’ll face when installing solar.

Reduces your power bill

It’s why your neighbours have them and why your dad won’t stop talking about them – solar panels are designed to cut your power bill. When you’re generating your own electricity, you’re not using or paying for the electricity that comes from the grid. During the day, your solar panels will generate energy that is used in real time to power any appliances, lights or technology you have around the home, with any excess energy either stored in a battery for night usage or sold back to the grid.

Creates renewable energy

Undoubtedly one of the most common reasons people get solar panels – you’re relying less on the grid! But what does this actually mean? Well, for most of Australia, electricity is sourced from the National Electricity Market, which is made up by generation from a variety of energy sources, including coal, wind and hydro amongst others. A residential household can’t purchase electricity solely from a renewable energy generator, so creating your own renewable energy is the next best thing.

Lowers your household carbon emissionssolar panel roof

Most of us are doing our part to be more environmentally-friendly, but with the energy industry contributing to a large portion of Australia’s emissions, reducing your reliance on the grid is one of the biggest individual impacts you can make. When households adopt a solar system, they’re reducing the demand for non-renewable energy that dominate our grid such as coal firing. This, in combination with practicing general energy-efficiency, is a big leap in the right direction when considering your carbon footprint from energy consumption.

Excess power can be sold back into the grid

When you’re not using the energy generated by your solar panels, it’s either stored in a battery or put back into the grid, for which you’ll receive compensation called a ‘feed-in tariff’. Feed-in tariffs are set by your retailer and some have even been known to set payment amounts to more than 20 cents per kilowatt hour (c/kWh) exported. However, unless you have quite a few panels, you probably won’t be making a killing from that money. Instead, it’ll help lower your power bills, even if only slightly.

Low maintenance

Much like with your car, you won’t always be able to rely on the rain to give your solar panels a decent clean. That being said, most people will only have to take a good look at their panels every six months or so, clearing them of dirt build-up if need be. Professional maintenance is also recommended by most installers, though this’ll only happen every few years and might even be covered by your upfront payment. Be sure to ask your supplier about any upcoming maintenance costs.

Disadvantages of solar energy

Where there’s an up, there’s a down, and there’s no exception when it comes to solar. Before making any costly decision, you have to weigh up the pros and cons, so we’ve listed out some of the biggest negatives to do with solar power.

High upfront cost

There’s no denying it, solar systems aren’t cheap. You’ll pay for the panels themselves and then someone to come and install them for you. This can cost a pretty penny – an average of $5,918 according to our survey data. However, you may be eligible for a subsidy depending on the time and which state you live in, so be sure to check before you dive right in.

Battery storage is expensive

There’s no point sugar-coating it, the upfront cost of a battery storage system isn’t cheap. Not only that, but the more storage you need, the more expensive it will get. Starting from around $2,000 and reaching upwards of $20,000 for a higher capacity, battery storage systems are pricey even at the shallow end. The silver lining is that solar companies often run promotions when customers purchase solar panels and storage at the same time, so make sure you do your research before making a commitment.

May not suit your roof

The concentration of homes with solar panels decreases the closer you get to high-density cities. Why? There are many different reasons, but a big one is that the close proximity in which people live can impact a roof’s exposure to the sun. If you’ve got big trees or buildings near you, your roof may be partially shaded depending on the time of day. It’s always best to get a professional to come and inspect your home and lay out your best options.

Less production on overcast days

We all feel a little gloomy on overcast days, but solar panels do more than most. How much energy your solar panels generate will depend on how much sun is hitting them. On cloudier days, your panels won’t be working at max capacity, meaning you might have to make up the shortfall in power from the grid.

Become less efficient with time

As with any technology ever, solar panels and batteries will deteriorate over time. Solar panels are directly exposed to the elements, and while built with heavy duty materials and made to last, as a rule of thumb it’s thought that panels decrease in efficiency by 20% in approximately as many years. Batteries, whilst normally stored inside, will typically last for about 10 years before they begin to become significantly less effective. Make sure you check the warranty of your solar system to ensure the longevity of your investment.

Image credits: Federico Rostagno/, amophoto_au/, Milleflore Images/, Rvector/

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