Given that the African Development Bank approved funding to the Northern Cape amounting to R3 billion and further funding amounting to USD658 million from a Saudi Arabian renewable energy developer company ACWA Power, meant to create more than 800 jobs and supply power to more than 210 000 homes once operational, what (a) progress has been made to date on the 100MW Redstone concentrated solar thermal power plant, noting that the specified project was meant to be in its commissioning stage in 2018 and (b)(i) total number of jobs have been created and (ii) in what trades?