Solar energy has been touted as the energy source of the future. A clean, renewable, and unlimited source of power that can help reduce our dependence on fossil fuels and curb the worst effects of climate change.
The widespread adoption of solar panels in Canada has been promoted as a key strategy for achieving a more sustainable and equitable energy system.
However, as with any technology, solar energy has both benefits and drawbacks that need to be considered.
In this article, we will take an objective look at the pros and cons of residential solar energy, exploring its potential as well as its limitations, and considering the challenges that must be overcome if it is to play a major role in meeting our future energy needs.
Pros
Net Metering allows you to utilize solar energy without the need for batteries
With net metering, your solar panels are connected to your home AND the electrical grid. You can utilize solar energy when there is a demand for power in the home. Excess power is sent back to the grid as credits, which can be used at night. This eliminates the need for expensive battery systems and reduces the overall cost of your system.
Solar panels work in all weather conditions
Although strong, direct sunlight is best for solar energy production, solar panels will still be effective in low-light conditions. On cloudy days, panels will produce about 25% of their full potential. In the winter, panels run cooler which makes them more efficient. Canada is a surprisingly excellent spot for solar. In most cases, you will produce more power than you need during the summer months, which will offset deficits during the winter months. This creates consistent energy savings throughout the year.
The cost of solar panels is more affordable than ever!
Since 2010, the price of solar panels has dropped over 70%. This is mainly due to improved manufacturing processes, more efficient panel technology, and government rebates.
On average, solar panels will increase your home’s value by 4.1% or $6,000 for every 1kw installed. A 10kw solar system can add $60,000 to your home’s value, which is more than the average system cost. You can understand why this happens in further detail here.
High-quality solar panels will last over 40 years
A tier 1 solar panel will typically come with a 25-year warranty. During that time, the drop in efficiency is no more than 0.5%. This means the solar panel will be at least 85% efficient once the warranty period ends providing a very long life.
A solar system will greatly reduce or eliminate your power bill
By producing the energy that you normally purchase from the utility company, your energy charges will be reduced or eliminated with solar energy. The percentage will depend on the space on your roof, and the amount of energy you require. It is very common to have 100% coverage!
Solar energy is clean and highly abundant
Solar energy is created by nuclear fusion that occurs in the sun. Our sun will be shining bright for another 5 billion years. In one hour, the Earth receives enough energy from the sun to meet all of mankind’s energy needs for one year!
Cons
Solar panels may require a large upfront investment
Most solar panel installers will require you to purchase the system with your own funds. This can be done using cash or through a loan, which makes the upfront costs unrealistic if you do not have the funds available. However most reputable installer should have access to 3rd party financing. You may also qualify for financing from the Federal Government through the Canada Greener Homes Program.
Net metering does not allow for backup power during outages
Solar panels installed through net metering are connected to the power grid. If the grid is down, your solar panels will not function. This is because, during power outages, it is unsafe for energy to be flowing through the power lines. Batteries can be installed for backup power, but costs are high.
Solar panels may decrease the curb appeal of your home
Although this point is subjective, a common downside of solar panels is their look. Not everyone will like how the panels look on their roof, and potential buyers may see the panels as a drawback when looking to purchase a new home.
Although less damaging than energy production from fossil fuels, manufacturing solar panels is a dirty process from start to finish. The production of solar panels uses a lot of energy, water, and toxic chemicals. They also create waste at the end of their life which is difficult to recycle. A solar panel will end in a net positive at the end of its life, however, it is not a perfectly clean solution.
Not all roofs are suitable for solar panels
For those of us that live in the Northern Hemisphere, panels face south. This is due to how to sun rises and sets in the sky. East and west-facing panels are also effective, but not as effective as south-facing panels because the sun will only hit them directly for a portion of the day. If your home faces north, with little space on the south, east or west side, your home is likely a poor candidate for solar energy.
Removing the solar system for roof repairs can be costly
If your roof needs work or replacement, the cost to remove the solar panels can be high. Sometimes as high as $3,000 - $5,000. It is important to discuss these costs with your solar panel installer.
Peak Solar energy production is weather dependent
Solar panels work best when there are no clouds in the sky, and the days are at their longest. Shade, fog, rain, and clouds will all greatly affect the output of your solar system. Heavy snow can reduce output to zero under certain conditions.
What do you think, are solar panels worth it? Let us know in the comments.
Comments