Hacker News new | past | comments | ask | show | jobs | submit login

Sure, wind turbines are large structures that take energy to build. But they are mostly made from steel, one of the most recycled materials. Glass is equally well recyclable. And you make wind turbines once and they need little resources for the rest of their lifespan. Currently their lifespan is 20-25 years, but as the technology matures and new turbines stop being massive improvements over older designs that lifespan will go up. For comparison a coal plant lasts about 40-50 years, and is also a massive heap of steel and concrete.

500M tonnes of steel over 10 years is ~3% of the worldwide steel production, for some context.




Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact

Search: