Comments by "Diana Pennepacker" (@dianapennepacker6854) on "The Unexpected Genius of Contra-Rotating Propellers" video.

@darthnihilus511 lol, have you been living under a rock since 2000? Work for the oil industry? I don't think you know what you're talking about. Clearly you are ignorant on the subject. Wind is the cheapest form of new energy production now, and only getting cheaper. The percentage of total wind will rise significantly. There are literal swathes of areas running off of offshore or land based wind across the world. Any failures happen due to operator error or poorly designed grids. Like in Texas - but wind didn't just fail. Their gas plants also failed. Practical Engineering has a break down on what happened. Stop getting your information off tiktok or Fox News.
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When 3d printing becomes better then definitely for smaller blades. For grid? Right now cost is everything... It just wouldn't make sense when you can purchase much larger designs of a less efficent design for the same price. Afterall the bigger/taller the blade the more power you get by a big factor. It is why we've constantly pushed for bigger standard designs. For example the world's biggest design is coming out at 140m. Just making the blades 10m bigger of the previous record holder netted you 2 more megawatts. Once we hit the limit where going bigger is no longer feasible or wanted then definitely. When that happens I have no idea. China will launch a turbine with some truly monstrous blades at 140m and over 50 tons a piece. Generating like I said 18 megawatts total. Soon we will have ones that are skyscraper tall at 150m plus! Wild.
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