Almost every week, a Kenyan technician pays an application fee for a licence class that does not match the work they do or the evidence they hold. The classes are not a ladder you climb by ambition; they describe scope, and scope decides what you may legally take on and what an assessor may reasonably ask you to demonstrate.
This is a plain-language explanation of how T1, T2 and T3 differ. EPRA publishes the definitive requirements and is the only authority that issues a licence — verify everything here against their current guidance before you apply.
T1 — small standalone DC systems
Solar home systems, DC lighting, small standalone installations. It is tempting to treat this as the easy class, and that is precisely why so many T1 installations fail early. The competence being tested is not complexity, it is discipline: isolating and proving dead on the DC side, sizing the DC side correctly rather than by habit, and producing a commissioning record another person could check.
If your work is rural electrification, solar home system rollouts, or small institutional lighting, this is your class — and doing it properly is a genuine trade, not a stepping stone to be endured.
T2 — medium systems with inverters and storage
Once an inverter and a battery bank enter the picture, two things change. AC and DC hazards now coexist on the same site, and the system holds stored energy independently of both the sun and the grid. Switching the array off does not make the installation safe.
Diagnostically, T2 is where technicians separate cleanly into two groups. One group replaces the most expensive component and hopes. The other isolates the question first: is the loss on the array side, in the charge path, in the storage, in the inverter, or in the load profile? The second group is the one that passes and the one that keeps clients.
T3 — grid-tied and hybrid
T3 adds the utility. Anti-islanding behaviour, protection coordination, changeover under real grid conditions, and the connection procedure itself. Kenyan grid conditions make this harder than the textbook version: frequent switching stresses changeover logic and cycles batteries far more than a design assumption might allow for.
Grid-connected work also brings KPLC's connection procedure into your project timeline. Confirm the current process with KPLC for the specific site rather than assuming last year's experience still applies.
Choosing correctly
Three honest questions:
- What do I actually get called to do? Not what you hope to do next year — what appears in your job history now.
- What can I evidence? Supervised site experience, documented, with dates and your real role. This is the part no course substitutes.
- Can I demonstrate the method under observation? If your isolation sequence is not automatic, the class is not yet yours regardless of what you know.
What to do next
Read the EPRA licence guide for the class tables, prerequisites, fees and application process, and the step-by-step licensing route if you are starting from scratch. If your gap is method rather than knowledge, the Kenya solar technician training track drills the graded diagnostic sequence assessors watch for.
Training prepares you. EPRA licenses you. Keep those two facts separate and you will make better decisions than most applicants.