Eskom did a brilliant job for decades whilst it operated as a self-owned (not state-owned) independent utility since 1923.
There's a history. The Electricity Act was amended after the ANC came to power, and Eskom was effectively nationalised. Most people do not realise that Eskom was NOT state-owned since 1923. My uncle, an electrical engineer, was head of both Generation and Transmission at the time, and he and others on the Eskom management board strenuously opposed the nationalisation, but of course lost.
Shortly after the nationalisation, the Mbeki government replaced the experienced management and moved many cadres into the upper levels of organisation. It then came up with various plans to "privatise" Eskom, really a way to shift large State assets to friends. None of them came to fruition and it was decided to keep Eskom ownership in State hands.
It's all been downhill since then.
It's not Eskom that's to blame - they were a fine organisation. It is Ceasar that seized ownership of Eskom and then ruined it by using it as a tool for cadre enrichment under the guise of BEE.
Broken Eskom is a consequence of a broken State. Eskom cannot be fixed unless and until we fix Caesar.
We should remind the media and journalists and every person we meet whenever the topic comes up that it is the State that is to blame, not Eskom. Especially in the election season we must make sure they don't get away with deflecting criticism back to Eskom.