Tweet by @MMalkamaki Published 16 March 2017 12:36 PM I recall some people saying 20-20 target was too tight. Wasn't. @AureliaTurbines #renewableenergy #energyefficiency https://t.co/UxF0OpdFtY, — Matti Malkamäki (@MMalkamaki) March 16, 2017 10:33