This week on Update From The Coal-Face,  publishing editor of Engineering News and Mining Weekly Martin Creamer looks at South Africa's first hydrogen corridor now under development will generate a minimum of 14 000 jobs a year, the Mining Indaba heard this week, President Ramaphosa this week expressed huge delight on being able to drive in the massive world-first hydrogen dump truck, built from scratch right here in South Africa and the big South Deep gold mine, west of Johannesburg, will be generating its own solar power at a mere 8.5% of what it costs from the Eskom electricity grid.