On the GreenBeat: Electric car charger Coulomb gets new CEO, Gevo's biofuels shares rise

Here’s the latest action we’re following on the GreenBeat: Gevo shares rise after $107 million biofuels IPO — Gevo’s shares have climbed about 13 percent today to $16.94 at the time of this posting, up from its initial offering price of $15. The company IPO’d on the Nasdaq at the high end of its range, selling 7.1 million shares at that price. Gevo plans to use the proceeds in part to retrofit an ethanol facility in Minnesota to produce isobutanol, a versatile alcohol compound used in rubber and lubricants. The company is backed by Khosla Ventures and Richard Branson’s Virgin Green Fund.

How secure is the smart grid?

What if a burglar could browse data which reveals which houses in an area are empty, or a cyberattack could create an electricity blackout? What if you unwittingly paid for your neighbour’s electricity, or a hacker could hijack control of your washing machine?