Knowledge Centre
Practical, data-backed guidance on commercial solar, battery storage, finance and asset performance in South Africa — written from the numbers our operating fleet produces, not industry averages.
Finance
What 40+ operating systems actually returned — payback periods, IRR ranges and the variables that move them, drawn from metered data rather than proposal projections.
Procurement
Two proposals for the same roof can differ by 30% on projected savings. The assumptions to check, the line items that hide cost, and the questions that separate engineering from sales.
Finance
The three ways to fund a commercial installation, compared on balance-sheet impact, ownership, risk allocation and lifetime cost — including when R0-upfront is the wrong answer.
Storage
Demand charges are billed on your highest half-hour. How peak shaving works, how to size a battery from interval data, and when the arithmetic does and doesn't justify the capital.
Operations
Beyond the diesel bill: scrapped batches, restart time, overtime and missed dispatch windows. A framework for putting a defensible rand figure on interrupted production.
Performance
Generation alone doesn't tell you if a system is healthy. What performance ratio measures, how to calculate it from your monitoring data, and the thresholds that should trigger a service call.
These articles are being written from our fleet's measured data and will be published here as they're completed. Have a question on any of these topics in the meantime? Ask us directly →
Available now
The three business tariffs and who each applies to, the 2026/27 rates, the peak/standard/off-peak clock, what solar changes on each, and three years of increases from the approved schedules.
Read the tariff referenceThe three main business tariffs from the NERSA-approved schedule, the seasonal peak hours, demand and network access charges, real export credits, and what solar changes on each.
Read the tariff referenceEvery line up 8.80% on 1 July 2026: the three main business tariffs, the seasonal clock with holidays billed as weekdays, how demand is billed, and what solar changes on each.
Read the tariff referencePrice bands by system size, what sits inside the scope, why quotes for the same roof differ by 30–50%, and the modelled payback and IRR behind all 17 of our published installations.
Read the cost guideDemand charges, time-of-use tariffs, PPA terms, performance ratio, LCOE and the rest — defined plainly, with worked examples built on Johannesburg tariff structures.
Read the glossary
Tell us your monthly electricity usage and we’ll model your consumption, system options and payback. Numbers you can rely on.