Home

Subscribe for handpicked DIY projects, exclusive tips, and giveaways.

Hi, I`m Charles

Here at Spheral Solar, I’m a hands-on solar power enthusiast, constantly exploring and experimenting with DIY solutions. I’m dedicated to sharing my discoveries, insights, and even the bumps I hit along the way, all in the pursuit of a more sustainable future.

Learn more

Recent Posts

Is Community Solar a Pyramid Scheme? What You Need to Know Before Joining

Community solar is not a pyramid scheme. It’s a subscription-based model that lets you buy a share of a larger solar farm’s output and receive credits on your electricity bill, without installing panels on your roof. I get why the question comes up, though. When my neighbor Charles first told me about a community solar…

How to Run Functional Performance Testing on Your DIY Solar System

Functional performance testing measures whether your DIY solar system delivers the power output it’s designed to produce. You’ll check voltage, current, and total wattage under real-world conditions, then compare those numbers to your system’s nameplate ratings to calculate a Performance Ratio, the gold standard metric that tells you if everything’s working properly. Most DIYers can…

4 Best Solar Deck Lights of 2026, Tested and Reviewed

After testing solar deck lights across multiple months of evening use, we found the VOLISUN Solar Deck Lights 16 Pack deliver the best combination of brightness, runtime, and installation simplicity for most outdoor spaces. These lights outperformed competitors in our real-world testing, staying reliably bright through the night and requiring nothing more than a quick…

6 Best Solar Spot Lights of 2026, Tested and Reviewed

After testing dozens of solar spotlights in real-world conditions throughout 2026, the AloftSun Solar Motion Sensor Outdoor Lights emerged as the top overall choice for most homeowners, thanks to its reliable performance and versatility across different landscape lighting scenarios. But picking the right solar spotlight depends entirely on what you’re trying to illuminate: flagpoles need…