British renewable energy startup Octopus Energy spins off its AI arm, Kraken, in what could create a stand-alone entity worth $15B (Yusuf Khan/Wall Street Journal)

Yusuf Khan / Wall Street Journal:
British renewable energy startup Octopus Energy spins off its AI arm, Kraken, in what could create a stand-alone entity worth $15B  —  Kraken could look to go public within the next year as it aims for U.S. growth  —  British renewable-energy startup Octopus Energy is spinning off …