What Are Three Different Kinds Of Solar Panels For Alternative Energy. Today we’re diving into solar panels—what types are available, how they work, and what you need to watch out for when choosing the right system. This video is the start of a multi-part series on solar installation, so make sure to check out our other videos and subscribe to stay updated.
At Conqueror Electrical, we have an extensive solar setup right here on the property. While we’re not as deep into solar installs as we once were, we still love sharing our knowledge and experience.
Inside Our Solar Setup
Behind me, you’ll see our system in action. We have:
- Two Magnum Sign inverters – fantastic, reliable units.
- An inverter controller and a generator start module.
- Multiple charge controllers from the panels.
- A massive bank of 88 batteries (we’ll talk about those in a future video).
This system isn’t your typical on-grid or off-grid setup. It’s technically off-grid, but smartly designed. It checks for solar input every hour and switches between solar and the grid depending on available energy. It’s a hybrid system that took a lot of time and planning to perfect.
Types of Solar Panel Technology
Let’s get into the main topic: solar panel technologies. There are three core types:
1. Amorphous Panels
- These are older-generation panels.
- Low efficiency: around 13%.
- Cheap and mass-produced.
- Common in trickle-charge setups (like a 12V battery tender for camping).
- Not great for high-power applications.
2. Polycrystalline Panels
- Mid-tier technology.
- Efficiency ranges from 15–17%.
- They were a decent option several years ago but are becoming less common.
- Replaced quickly by monocrystalline due to better performance at comparable cost.
3. Monocrystalline Panels
- Currently the best tech on the market.
- Efficiency is around 18–20%, with the highest pushing just over 20%.
- Built with better materials—tempered glass, anodized aluminum frames.
- Extremely durable and widely used today.
- This is what I use on my home system.
Efficiency Comparison
To put this into perspective, even the best photovoltaic (PV) panels only convert about 20% of sunlight into usable electricity. If you’re looking for higher efficiency, you’d need evacuated tube solar collectors—used for hot water—that reach 66–70% efficiency.
The “Wattage Rating” Sales Trap
Important note: pay attention to real vs. advertised wattage.
Salespeople often label solar panels (and other energy products) by peak wattage, not sustained output. It’s like buying a stereo labeled “1000 watts” when it only provides 500 watts continuously. Solar panels are no different.
Some polycrystalline panels labeled as “100W” may only output 50W in real-world use. Monocrystalline panels are more likely to live up to their nameplate ratings. Always read the specs carefully and buy from reputable sources.
Real-World Setup Advice
- My system is 8kW, powering my home for most of the year—except winter, when snow covers the panels and days are shorter.
- I automated the system so it flips to the grid when the solar or battery bank can’t keep up.
- I don’t recommend mounting directly on asphalt roofs without proper standoffs—this causes heat buildup and can damage shingles.
- Metal roofs or ground-mounted tracking systems are much better options.
- Always consider wind loading for stand-alone panel mounts—solar panels can act like sails in a storm.
Construction Tips
- For wiring: use UV-rated outdoor wire, like SOW cord.
- Be aware of local electrical codes—requirements can vary.
- MC4 connectors are common and convenient but can get expensive in large-scale setups.
Final Thoughts
So there you have it—amorphous, polycrystalline, and monocrystalline solar panel technologies explained. Monocrystalline is currently the most efficient and cost-effective choice.
We’ll include links to recommended products on our website conkerelectric.com. These are items we’ve tested and trust. You can buy them—or not—it’s completely up to you. We just want to share what works.
We’ve been doing this for over 20 years, and we’ve learned a lot—both good and bad. If you’re getting into alternative energy, be wary of exaggerated marketing claims and always aim for real-world performance.
Thanks for tuning in—don’t forget to like, comment, and subscribe.
Have a great weekend, and we’ll see you in the next video!
