Generation
Hourly or annual energy balance
Generation profile, buyer load, matching assumptions, excess energy, shortfall and residual grid supply.
Corporate power · PPA · wheeling
Know what a private power deal actually costs and saves.
Commercial and financial analysis for corporate PPAs, wheeling structures and private power transactions across African electricity markets.
Commercial question
The headline PPA tariff is not the delivered power price.
Wheeling economics depend on more than the generator tariff. Grid charges, electrical losses, balancing, residual utility supply, curtailment, escalation and load shape can materially change the buyer's realised saving and the generator's return.
I model those moving parts together so the commercial case can be tested before a project team treats an attractive tariff as a bankable transaction.
Analysis
What the PPA and wheeling model can test
From generator output to the buyer's delivered cost.
Tariff
PPA price and escalation
Contract tariff, indexation, annual escalation, minimum take or contracted volumes and scenario comparisons.
Grid
Network charges and losses
Wheeling charges, use-of-system costs, technical losses, balancing and other delivery costs where applicable.
Buyer
Delivered cost and savings
Compare the wheeled energy cost with the buyer's utility alternative and quantify savings by year.
Generator
Revenue and returns
Translate contracted energy into project revenue, debt service capacity and investor return implications.
Risk
Curtailment and non-delivery
Test lost generation, grid constraints, take-or-pay structure, payment risk and allocation of curtailment exposure.
Example
South Africa corporate PPA and wheeling model
A public case from the portfolio.
Buyer and generator economics
Modelled generation, buyer load, grid charges, losses, utility residual supply and generator revenue to test the true delivered cost of power.
Buyer saving17.3% in Year 1
FocusDelivered cost
Public wheeling model
Interactive sample showing how tariff, network cost and load assumptions move the commercial answer.
MarketSouth Africa
FormatPublic sample
When useful
Use this before commercial terms harden.
- A developer is comparing possible buyers or tariff structures.
- A corporate buyer needs to test whether a private PPA genuinely beats grid supply.
- An adviser needs an independent commercial model before negotiations or investment approval.
- A project team needs to understand how curtailment, losses or network charges affect bankability.
- Management needs a concise note explaining the transaction economics without reading the full model.
Related services
Connect the PPA to finance and market risk
The contract is one part of the project.
Finance
Project finance support
Debt capacity, cover ratios, PPA risk and downside cases.
Models
Solar & BESS modelling
Revenue, cash flow, debt and returns.
Markets
Market due diligence
Rules, tariffs, buyers, grid and project pipeline analysis.
Next step
Need to test a PPA or wheeling case?
Share the market, buyer type, tariff structure and the decision you need to make.