Green tech needs spark
It’s a great relief for owners of Nissan’s 30 kilowatt-hour (kWh) Leaf to learn it’s not their cars’ costly electric batteries that are faulty but rather some of the more easily fixed software that monitors them. And yet this whole avoidable episode has proved an important lesson for New Zealand in our uptake of new, green technology. We know wide uptake of the Leaf – New Zealand’s bestselling electric car – and its ilk would have a swift effect on emissions reduction. In terms of sequestering carbon, an electric vehicle (EV) is, on average, the equivalent per year of 22 pine trees averaged over a 30-year growth cycle. Given the alarming new scientific assessment, published in the National Academy of Sciences journal of proceedings, PNAS, revealing that even a modest continuation of…