How Solar Panel Work?

Jan 11, 2024

Solar Energy Essentials: Understanding Solar Panels for Your Home and Business

What You Should Know About Solar Panels: Residential and Commercial Application

Introduction to Solar Panels: Solar energy has revolutionized how we power our lives, offering a sustainable and eco-friendly alternative to traditional energy sources. Understanding solar panels is the first step in embracing this technology. These ingenious devices convert sunlight into electricity, harnessing solar energy to power homes and businesses.
Determining Your Solar Needs: When considering solar panels, one of the first questions is, “How much solar do I need?” The answer varies based on several factors. Residential needs differ significantly from commercial requirements. To determine your solar needs, consider your average energy consumption, roof size, and sun exposure. Solar panels are typically sized in kilowatts (kW), and the average home may require anywhere from 4 to 8 kW, while businesses might need more, depending on their scale and energy usage.

Evaluating the Worth of Solar Panels: A Cost-Benefit Analysis

Financial Considerations: Investing in solar panels can seem daunting due to the initial cost. However, it’s crucial to consider the long-term savings. Over time, solar panels significantly reduce electricity bills, eventually paying for themselves. Additionally, many regions offer incentives and rebates for solar installation, further reducing the financial burden.

Environmental Impact: Beyond financial savings, solar panels contribute immensely to environmental conservation. By using solar clean energy, you reduce reliance on fossil fuels, thereby decreasing your carbon footprint. This switch to renewable energy is not just a personal gain but a global benefit, aiding in the fight against climate change.

The Mechanics and Benefits of Active Solar Energy

How Active Solar Energy Works: Active solar energy systems use solar panels, either photovoltaic for electricity or solar thermal for heat, to capture the sun’s energy. These systems convert sunlight into usable energy, providing a reliable and efficient power source. The technology behind solar panels, particularly photovoltaic cells, is fascinating. These cells are made from semiconductor materials, like silicon, which generate electricity when exposed to sunlight.

Advantages of Solar Energy: The advantages of solar energy are manifold. Solar panels offer a reliable source of clean energy, reducing electricity bills and providing energy independence. In regions with high electricity rates or unreliable power grids, solar panels are particularly advantageous. Additionally, solar energy is infinitely renewable, ensuring a consistent and sustainable power source.

Solar Panel Energy Generation Potential

Calculating Energy Output: The energy output of solar panels depends on several factors, including their efficiency, the amount of sunlight they receive, and their size. The average solar panel has an efficiency of around 15-20%, meaning it converts 15-20% of the sunlight it receives into electricity. To calculate the potential energy output, consider the number of sunlight hours in your region and the total wattage of your solar panel system.

Real-World Examples and Case Studies: In Auckland, where overcast conditions are common, solar panels like SunPower, known for their high efficiency in low-light conditions, can significantly benefit. Coupling these with Enphase microinverters, which optimize energy conversion, ensures maximum energy generation even on cloudy days. For instance, a typical Auckland home with a 5 kW SunPower system can generate substantial energy, reducing reliance on the grid and lowering electricity bills.


Embracing solar panels for your home or business is not just a smart financial decision but also a commitment to a more sustainable future. Understanding how solar panels work, their benefits and their potential to generate clean energy can empower you to make an informed decision. With technological advancements and increasing affordability, solar energy is more accessible than ever, offering a practical and eco-friendly solution to our energy needs.
By harnessing the power of the sun, we’re not just illuminating our homes and powering our businesses; we’re also lighting the way to a greener, cleaner world.

Our guarantee

With extensive experience and certification by New Zealand Master Electricians, we are the trusted solar energy systems provider for Kiwi homes and businesses. With the highest level of compliance available in solar installation, we only work with products covered by a manufacturer’s warranty and we guarantee all our workmanship.

Our commitment

Vital Solar is a proud member of SEANZ, the Sustainable Energy Association of New Zealand.

SEANZ is an independent organisation that works hard to drive our sustainable energy future, leading the promotion, support and innovation of solar PV and energy storage technologies.

Because we’re members of SEANZ, we work to a strict SEANZ Code of Conduct. It also means you can apply for financing from your bank for solar energy systems from Vital Solar.

From start to finish, our solar journey with Vital Solar has been superb. We did extensive research and obtained 5 quotes before (easily) deciding on Cam, Maryann and the Vital Solar team. Cam (MD) is highly knowledgeable about all matters solar, and patiently answered all our questions. (Ours is a tricky South facing site, so there were many questions). Maryann was super helpful and kept the ball rolling with logistics and other queries. We decided to get Sun Power panels with Enphase microinverters and two Enphase IQ 5P batteries. Vital Solar’s installation and service team (including Sam and Keenan) was very professional, helpful and tidy. After the installation was complete, Maryann also helped us get the grid connection sorted. Such great people! We did our solar due diligence, and recommend the Vital Solar team very highly. Thank you guys!😊💯
Suki Harding
Suki Harding
For our small installation onto our villa the discussion, ongoing communication, installation, and final product was all excellent. We highly recommend this company
Tom Robinson
Tom Robinson
Vital Solar are awesome. They will listen to what you want, and educate you where necessary so that you can get a system that works best for you and your home. They take pride in their work and do a tidy job with quality equipment. I had a few extra requests such as a Solar hot water power diverter, and that was provided and installed with no hassle. I've asked for more information about extras (e.g. batteries) since the install, and have received friendly advice and follow up. I would recommend them over the big guys who you will either never hear back from, or they will quote something from their computer without even visiting your site.
Ryan Maxwell
Ryan Maxwell
Cannot recommend highly enough. Vital Solar took the time to understand our issues and come back with excellent information- waaayyyyyy more information than the original installer had ever shared. Which meant we could make good decisions. GREAT service, fantastic communication and just lovely individuals to work with. Highly recommended.
sandy pearson
sandy pearson
Cameron and Maryann are engaged and knowledgeable. Dealing directly with the owner is a distinct advantage, and the fact that Cameron visited and assessed the site before quoting was a key point in our choosing Vital Electric.
Alan Merry
Alan Merry
Had vital come through for a consult, and ended up going with an Enphase system, knowledge with the whole process and incredibly happy with total install.They truly went above and beyond my expectations a awesome crew
Andrew Dick
Andrew Dick
Vital Solar really know their stuff. I appreciated the education on solar as part of the sales process. The Vital Solar installation team, in their Vital Solar uniforms, were professional and kept us well informed as the installation progressed. Having a 25 year guarantee backs up the quality of both the product and the service from Vital Solar, giving us peace of mind. It's been worth paying a bit more with Vital Solar than some of the other providers we approached, to get quality. We're delighted with our new system. Did someone say power prices just went up again - not for us. Thanks Vital Solar.
David Schischka
David Schischka
Cam and his team at Vital Solar were recommended through a mutual friend. Definitely made the right choice to go with them for our residential PV install. A pleasure to deal with.
Luke Gowing
Luke Gowing

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5 Collard Place, Henderson, Auckland 0610