Datum Markets

We check what electricity really costs.

Businesses in southern Africa spend millions on power through bills almost nobody verifies. We rebuild the numbers from the regulator's and the utility's own published documents.

What we do

Check the bill

We recompute an Eskom invoice line by line against the published rules.

Check the deal

Wheeling is sold on claimed savings of 20 to 30%. We test the claim.

Make the market measurable

Southern Africa's traded prices exist only inside PDF reports. We turn them into usable data.

Every figure is traced to the document it came from, so buyers, lenders and traders know what power actually costs, and whether a promised saving is real.

Who this suits

Large electricity users

On Eskom Megaflex, above 1 MVA.

Lenders and credit teams

Financing wheeling and corporate power purchase agreements.

Anyone modelling a wheeled PPA

Where the credits that do not apply decide the saving.

What a review covers

A finding we have published

Eskom's 2026/27 generation capacity charge is about 1.5 times the 2025/26 rate, and NERSA excludes it from the wheeling energy credit. A model that credits it back overstates the saving.

Read the analysis

Start with one invoice

Send the figures from a recent Eskom invoice. The reconciliation comes back in five working days, free.