Blockchain: Green building blocks

The technology is helping to expand the uptake of renewables worldwide, Ewald Hesse, CEO of Grid Singularity, tells World Energy Focus

Q. What is Grid Singularity, and why did you decide to start the company? A. I was a mechanical engineer, and worked for the energy group ABB in Austria for six years. I first dived into blockchain five years ago, working with bitcoin mining, and then I supported the development of Ethereum which received $18m in crowdfunding and then took one and a half years to build. It is still so far the most advanced blockchain platform. Two years ago, we decided to open a new company, Grid Singularity, with the purpose of further developing the blockchain technology suitable for energy markets. Q. Can you explain how a blockchain transaction works, from beginning to end? A. Bitcoin, which is a currenc