At 15:35 GMT, the South African currency was one percent firmer at 14.79 per United States dollar.
The Integrated Resource Plan (IRP) 2019 will replace a previous blueprint not updated for almost a decade. It explains the electricity generation strategy and covers the energy mix the country will rely on in the immediate future.
“The news comes as a great relief after months of uncertainty, in the midst of yet another round of load shedding [power cuts] implemented by Eskom,” said Bianca Botes, treasury partner at Peregrine Treasury Solutions.
South Africa was hit by power cuts for a second day on Thursday, with Eskom saying that a number of generating units were still out of service and may not be back up and running for a few days.
Debilitating power cuts in February and March pushed South Africa’s first-quarter economic growth into contraction and raised the likelihood of the country losing an investment-grade rating.
Moody’s is the last of the big three credit rating agencies to have an investment-grade rating on South Africa, and is due to deliver its latest credit review on November 1.
Equities fell slightly on Thursday, with the broader Johannesburg All-Share Index down 0.17 percent, while the blue-chip Top 40 index edged 0.28 percent lower.
Diversified miners were among the losers, with Anglo American down 1.27 percent to 360.54 rand ($24.30), while BHP Group shed 2.01 percent to 305.93 rand ($20.62).
“Commodity prices are under pressure at the moment, so all the diversified miners are trading weaker because of that – and a stronger rand causing a pullback,” said Jean Wessels, a trader at AG Capital.
DRDGOLD Limited gained 2.5 percent to 6.95 rand ($0.47), Harmony Gold Mining Co rose 2.07 percent to 45.41 rand ($3.06), and Sibanye-Stillwater was up 1.96 percent at 25.45 rand ($1.72).
The yield – which moves in the opposite direction as the price – on the benchmark government bond due in 2026 fell 1.3 basis points to 8.26 percent.