Energy

In HRV terms, a binding constraint is one whose shadow price on growth is demonstrably high — where relaxing it yields a first-order output response, and where agents visibly reorganise behaviour to economise on it. Electricity in South Africa clears that bar unambiguously. Load-shedding shaved an estimated 2 percentage points off GDP growth in 2023, Eskom's energy availability factor fell below 55% at its nadir, and firms across the size distribution — from smelters to spaza shops — have been sinking scarce capital into diesel gensets and rooftop PV rather than productive capacity. The constraint is not merely the megawatt gap but the institutional architecture around it: a vertically integrated monopoly with a R400bn-plus debt stock, a transmission grid whose northern Cape evacuation corridors are saturated precisely where renewable resources are best, and municipal distributors whose non-cost-reflective tariffs have hollowed out the utility's revenue base.

The database reads as a coherent sequencing story rather than a grab-bag. The structural spine runs through Eskom Restructuring — Generation, Transmission, and Distribution Unbundling and the Electricity Regulation Amendment Act — Competitive Electricity Market, which together convert a monopoly into a market; the National Transmission Company Capitalisation and Grid Expansion is the physical precondition for that market to clear, since without wires the IPP pipeline chokes. Quick-win demand-side and self-generation measures — notably Energy Bounce-Back and Industrial Energy Self-Generation — bought political time for these slower institutional reforms, while the IRP 2024 Update and Koeberg Nuclear Power Plant Long-Term Operation Extension address the medium-term mix. A common thread is that DMRE and DPE-era reforms are converging on a DoEE-led market design, with NERSA's tariff rationalisation as the quiet linchpin that determines whether any of it is financially sustainable.

Watch three indicators over the next year: the energy availability factor and load-shedding hours (the outcome variable); MW of new transmission capacity contracted under the NTCSA's independent procurement, since grid is now the tighter sub-constraint; and whether NERSA approves genuinely cost-reflective municipal tariffs without triggering a political reversal. Movement on all three would suggest the constraint is loosening from binding to merely difficult.