These are independent reviews of the products mentioned, but TIME receives a commission when purchases are made through affiliate links at no additional cost to the purchaser.
Wind power is among the greenest sources of energy around, but the sheer size and weight of wind turbines makes building and transporting them challenging. Keystone Tower Systems, aided by more than $7 million in funding from the U.S. Department of Energy, solved these issues with a spiral welding technique previously used to make steel pipelines. The process lets the company ship flat sheets of steel, then curl them into cylinders onsite, which means the towers can be built twice as tall as regular turbines, at 10 times the speed.
More Must-Reads from TIME
- Biden Drops Out of Presidential Race, Endorses Harris to Replace Him
- Why Biden Dropped Out
- The Chaos and Commotion of the RNC in Photos
- Why We All Have a Stake in Twisters’ Success
- 8 Eating Habits That Actually Improve Your Sleep
- Stop Feeling Bad About Sweating
- Welcome to the Noah Lyles Olympics
- Get Our Paris Olympics Newsletter in Your Inbox