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
Price 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 put in front of a board.