Choosing the Best Solar System for Your Home

Thinking about going solar? That's fantastic! Harnessing the power of the sun is a smart move for your wallet and the planet. But before you jump in, one crucial question needs answering: What size solar system is best for my home?

While carefully matching your current energy needs is important, there's also a strong argument for maximising your solar panel installation to future-proof your home.   

Slapping as many panels as possible on your roof might seem like overkill, but in many cases, it's a wise long-term strategy. Conversely, going too small might leave you still heavily reliant on the grid. Finding that sweet spot, or even leaning towards a larger system, is key.

So, how do you navigate this solar sizing puzzle? Let's break it down step-by-step, with a focus on future-proofing:

1. Understand Your Current Energy Consumption:

This is a crucial first step, but don't let it limit your thinking.

• Look at your bills from the past 12 months. Most bills will show your monthly or even daily energy consumption in kilowatt-hours (kWh).   

• Calculate your average daily usage: Add up your total kWh consumption for the year and divide by 365. This will give you a good average of your daily energy needs today.

• Identify peak usage periods: Note if your energy consumption spikes during certain times of the year (e.g summer for air conditioning, winter for heating) or specific times of the day.

2. Consider Your Future Energy Goals:

This is where the future-proofing comes in.

• Offset your entire electricity bill (and then some): This is a great starting point. But think beyond your current usage.

• Future energy needs: This is the key. Are you planning any major changes that could increase your energy consumption? Think about:

  • Electric vehicles (EVs): Charging an EV can significantly increase your electricity demand.   

  • Pools or hot tubs: These require pumps and heaters.   

  • Home expansions or renovations: More space means more lights, appliances, and potential HVAC needs.

  • Working from home: Increased daytime energy use.

  • Future appliances: Consider the energy consumption of new appliances you might purchase.

  • Home Batteries: You need to produce enough power to ensure you can charge a home battery.

• Anticipate technological advancements: We are heading towards a future with increased electrification. Even if you don't have specific plans now, having extra solar capacity can prepare you for future energy needs you might not even foresee.

3. Evaluate Your Roof Space and Orientation:

This is where maximizing your panel installation comes into play.

• Available area: How much unobstructed roof space do you have that receives good sunlight? The more, the better, even if it seems like more than you need right now.

• Roof orientation: North-facing roofs typically receive the most sunlight however all orientations including the south face can have solar installed with great results. Consider using all available suitable roof space.

• Roof pitch: The angle of your roof can also affect energy production.   

4. Factor in Sunlight Hours and Climate:

The amount of sunlight your location receives impacts energy generation.   

• Sunlight hours (Peak Sun Hours): Find this information for your area. A larger system will generate more even on less sunny days.

• Climate: Consider cloudy days and seasonal variations.

Putting It All Together: Go Big (Within Reason)

While you can do some initial calculations yourself, the best way to determine the ideal solar system size is to book in a consultation and we can:

• Conduct a thorough site assessment of your roof.

• Analyse your energy consumption data (past and potential future).

• Discuss your energy goals, emphasising future-proofing.

• Use specialised software to calculate the optimal system size. Don't be afraid to ask for options that maximise panel coverage, even if they seem slightly larger than your current needs suggest.

• Provide accurate estimates of energy production and cost savings.

• Explain different panel options and system configurations.

Investing in a solar system is a significant decision. By carefully considering your future energy needs and seeking expert advice, you can confidently determine the best size solar system – set up a consultation now with one of our experts and we can provide you directly up to 3 quotes from our trusted installers catered towards your specific home energy needs.