I found an article saying they're working with ConsenSys, which uses Ethereum. Of course they might have an independent chain but that was my impression. https

I found an article saying they're working with ConsenSys, which uses Ethereum. Of course they might have an independent chain but that was my impression. https://www.technologyreview.com/s/604227/blockchain-is-helping-to-build-a-new-kind-of-energy-grid/ https://www.technologyreview.com/s/604227/blockchain-is-help...