The Nation: Power Plants

The yellow roses of—Minnesota?

No one is singing about them yet, but power company officials are whistling about 130,000 long-stemmed beauties they grew in an experimental greenhouse in Sherburne County, Minn. The structure needs no fuel: excess heat from a coal-burning electricity plant near by is used to keep temperatures in the 60°-to-75° range. Hot waste water from the plant is pumped into the greenhouse through pipes buried in the soil. The sponsors of the $700,000 experiment —the Northern States Power Co., the University of Minnesota and the Environmental Protection Agency—found its potential intriguing. Along with the roses, some 25,000 Ibs. of...

Want the full story?

Subscribe Now


Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!