PowerCurve Recovers India AEP, Silent Edge Cuts Noise

Nicholas Gaudern, CTO at PowerCurve, joins to discuss India AEP gains, DragonScale VGs, and Silent Edge noise reduction.

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Allen Hall: Nicholas, welcome back to the podcast. 

Nicholas Gaudern: Thanks, Allen. Great to be back. 

Allen Hall: So there’s a lot going on at Power Curve, and I saw some news online about Power Curve in India. 

Nicholas Gaudern: Yes. 

Allen Hall: Which is a new development. 

Nicholas Gaudern: Yeah, so we’ve been working in India for, for some years now, and we have, uh, more than 100 turbines out there with our equipment on, primarily vortex generators so far.

And what we’re seeing in India is some of the highest AEP gains we’ve ever recorded with our vortex generators And I think a lot of this is being driven by the fact that in certain parts of India, there’s some very unique, uh, environmental conditions, climatic conditions, and there’s parts of the year, like the dry season up in [00:01:00] the north of India, where you’re getting this very sticky dirt accumulating on the blades.

And it’s really quite dramatic when you see the photographs, but that means that the blades are actually starting to, to stall, have flow separation on them. 

Allen Hall: I’ve seen pictures of that. Yeah. I was really shocked at the time, uh, ’cause I didn’t know it was just kind of a black, gooey- Yeah … kind of tar-like substance- Yeah, yeah

on the blades, and, uh, it, it was only on there a limited time. As soon as the monsoons come through and the rains hit, it would wash, eventually wash it off. Yes. But while it’s there, you could see the airflow over the blade surfaces. You, you could definitely see separation happening really early on those blades.

Dramatic. 

Nicholas Gaudern: Yeah, absolutely, and I think the, um… Like you say, it’s not all year. No. But it doesn’t have to be all year to have a huge impact on, on how many, you know, megawatt hours you’re getting out the other