OUR SPECIFICATION STANDARD
How We Specify Your System
We are hardware-agnostic. We are not an agent for any single brand — which means every system we design has to earn its place against a fixed set of engineering standards. This is the standard your inverter, battery and panels must meet before we will install them.
The Six Standards Every System Must Meet
No exceptions. If a product cannot satisfy all six, we do not put our name on it.
Battery That Lasts
A minimum cycle life well beyond the market norm, with 100% of the rated capacity usable — no hidden buffer held back. High-voltage architecture for efficiency and safety.
Seamless Grid Protection
South Africa’s grid is dirty — voltage spikes, brownouts, phase faults and load-shedding. The system must switch to battery seamlessly, so sensitive electronics never feel the disruption.
Integrated, Not Assembled
Inverter, battery and management from a single manufacturer — the fewest possible points of failure, and one company accountable for the whole system rather than a patchwork of brands.
Swap-Out Warranty
If something fails, the unit is replaced — not left on your wall waiting weeks for a repair technician and parts. Accountability sits with one manufacturer.
Genuinely Smart
Whole-home energy management — automating geyser, pool and heavy loads by solar surplus, battery level or tariff — plus best-in-class monitoring of real production, consumption and battery health.
Grade A, Bankable Warranty
Latest N-type cell technology (TOPCon / ABC) using Grade A cells, bifacial where it adds real yield, backed by a bankable product and performance warranty. The panel is the 25-year part — it has to be right.
Panel Brands We Specify
We work with leading Grade A manufacturers backed by bankable warranties rather than tying you to one. The brand is chosen per project on efficiency, warranty and value — but every option meets the same standard: Grade A cells, the latest cell technology, and a bankable warranty.
THE SYSTEM THAT MEETS THE STANDARD
For residential and light-commercial projects, one system meets every standard on this page.
After testing what’s on the market against these criteria, the system that consistently ticks every box is SigenEnergy. It’s our default recommendation — not because we’re an agent, but because it wins on the measures above. Where a project needs something different, we say so.