Category: Solar Energy

Solar panels need sunlight. That sounds obvious, but the moment you put something between the sun and the panel, things become more interesting. A sheet of glass, a piece of plastic, or even a fine screen may look almost transparent to our eyes. We can still see the solar panel underneath, so it is tempting […]

Hello Friends, I told homeowners their solar panels didn’t need much cleaning — maybe once or twice a year, rinse if visibly dusty, move on. I treated it like optional car washing, not mission-critical. Then I decided to test this assumption. I set up two identical 400-watt panels side by side, kept one meticulously clean, […]

I’m Sudeep, and I’ll be direct: I thought I understood solar panel shading well enough that testing it wouldn’t teach me anything new. I’ve spent 25 years explaining to homeowners why a small tree branch shadow cost them more power than the branch’s size would suggest. I knew the theory — bypass diodes, series string […]

I’m Sudeep, and I get asked constantly by US homeowners and installers: “Which panel should I buy? The salesman keeps pushing TOPCon, but standard monocrystalline seems fine. Is bifacial worth the extra cost?” I’ve consulted on solar for 25 years and watched panels evolve from thick multicrystalline to modern high-efficiency options. But there’s always been […]

One of the most common questions I hear when discussing rooftop solar is surprisingly simple: what is the best angle for a solar panel? Many people assume that if a panel is pointed toward the sun at some point during the day, the job is done. In practice, tilt has a direct effect on how […]

One of the most common calls I get from homeowners in the US who regret their solar installations isn’t about the panels themselves — it’s about decisions made before installation even began. “Sudeep, why is my inverter shutting down from overheating? Why did the electrician run the wiring right through my attic where it gets […]

I’m Sudeep, and for 25 years I’ve been installing and troubleshooting solar systems across India. Much of my time now goes to phone and video consultations with homeowners and installers across the USA, Canada, and Europe who’ve noticed sudden production drops. Someone reaches out saying, “Sudeep, my system was producing fine for years, and now […]

I’m Sudeep, and I’ll be honest — I’ve told clients plenty of times that partial shading on solar panels is worse than you’d expect, based on pure logic. A tree branch blocking maybe 15% of a panel’s surface shouldn’t cause a 15% power loss, right? Wrong. But knowing something intellectually and actually watching it happen […]

I’m Sudeep, and if you’ve read my work before, you know I have a soft spot for turning vague claims into actual numbers. “Solar panels still work on cloudy days” is one of those lines I’ve said to clients probably a hundred times over the years, usually followed by a slightly uncertain “…just less.” That […]