That’s why earlier this year, she pulled together a mostly Israeli team to fly from Tel Aviv to a “hackathon” in Berlin, where they designed a prototype for a virtual currency called ElectroEuro. The currency could allow European utilities to price and trade clean power. “It’s like a bitcoin for energy,” she says. The Ecomagination Challenge Hackathon took place alongside GE’s Minds + Machines Europe digital summit, and team ElectroEuro was one of the winners sharing in €50,000 ($56,000) in cash prizes.
Some 100 developers took part in the event on a sightseeing boat anchored in one of Berlin’s industrial harbors. Most of the participants were men, but Kohen, 32, wasn’t intimidated. The American native has a degree in electrical and computer engineering from Cornell University. Upon graduation, she joined Raytheon, where she worked on radar and missile technology. Still wanting to learn more, she moved to Israel’s Bar Ilan University in Tel Aviv and enrolled in a master’s program focusing on computer science, artificial intelligence and natural language processing.
But she never stopped looking for opportunities. A few years ago, she applied for Google’s prestigious Anita Borg Memorial Scholarship designed to bring more women into computer science. She made it into the final round, but she didn't make the cut. So she founded her own group in Israel for female computer scientists called FemTech, which now has more than 1,000 members.
Kohen learned of the hackathon when Ira Blekhman, a GE employee in Israel, posted information about it on FemTech’s Facebook page. It said that GE would fly the first 10 applicants to Germany. “I knew that women don’t usually step out of their comfort zone and compete in coding competitions,” Kohen says. “Naturally, I jumped on it.”
Kohen put together a small team and called on the skills she’d learned through Google Outstanding, a public speaking training program. “I didn’t want to leave anything to chance,” she says.
The team arrived in Berlin on Sunday and went straight to the “hacker boat,” as the venue became known. She and her teammates, which included Ran Koretzki, a computer science graduate student from Israel’s Technion technical university, got to work. They gathered information about the amount of electricity different European countries produced and consumed and from what sources. Next, they designed an algorithm that allowed utilities to trade the surplus. “It’s like an energy bank,” Koretzki says. “You can use the ElectroEuro to buy and sell electricity, based on the source.”
In addition to Kohen and Koretzki, the team included Haim Bender, Isaack Rasmussen and Idan Nesher. Bender and Rasmussen integrated the prototype with GE’s Predix platform for the Industrial Internet, and Nesher created its user interface.
When connected to Predix, the prototype would monitor energy production data from eight different sources, including wind and solar, but also coal and nuclear. It could then price the electrons based on availability, distance, stability and friendliness to the environment. “Wind, for example, is very green, but it’s also fickle,” Kohen says. “Coal, on the other hand, is very predictable, but also pollutes the air.”
The team says its solution would enable European governments to promote “clean” energy by allowing utilities to bid on power from the energy source they want. “The whole idea is to promote decarbonization,” Kohen says.
The two-day hackathon featured two main challenge areas: electrification (moving to renewable power use and generation) and advanced manufacturing to decarbonize the economy. Kohen’s team won in the electrification category and placed second in building solutions on Predix. (See all the winners here.)
Various European industries had submitted real-world problems for competitors to solve. “It’s really powerful, because they have a real need and are hoping one of the teams finds a solution,” says Elizabeth Wayman, GE’s global director for Ecomagination, which sponsored the hackathon. Eurelectric and Intel also partnered on the hackathon while ESB Networks, European Heat Pump Association, Fraunhofer and Stelia Aerospace contributed data. Competitors, working individually or in groups, had about 36 hours to design a working app prototype.
As the winners in the electrification category, Kohen and her team will be invited to present their app next week at the European electric utility consortium Eurelectric’s annual convention and conference in Brussels.