We are specialists in PV system registration and professional engineering sign-off — handling SSEG applications, site inspections, and commissioning reports with Eskom and municipalities across South Africa.
Getting your system registered — we're with you, side by side, to the end.
Tell us which you are — we'll tailor our response.
We prepare and submit your Small-Scale Embedded Generation application to the relevant supply authority, with all required documentation handled for you.
Professional PV system design documentation prepared by registered engineers — meeting supply authority standards for residential and commercial installations.
Compliant SLD and technical drawings that meet municipal and Eskom requirements — a critical part of every registration submission.
Physical verification of your installation for compliance and safety. Our team inspects every detail before engineer sign-off is issued.
Final submission and professional engineer sign-off to the supply authority — completing the registration process with full compliance documentation.
We manage all paperwork, follow-ups, and communication with supply authorities — keeping you updated from application to final approval.
Unified Engineering Solutions reflects our commitment to bringing every part of the PV registration process together under one roof. We unify design, inspection, sign-off, and administration — so homeowners and installers deal with one professional partner, not a chain of disconnected service providers.
TPA Engineering (Pty) Ltd, trading as Unified Engineering Solutions, is a professional electrical engineering firm based in Cape Town with a service offering that extends nationwide. We provide registered engineer sign-off, SSEG registration, and full compliance support for residential and commercial PV systems. With 250+ registrations completed and deep experience across Western Cape municipalities and Eskom, we ensure every project is executed with competence, collaboration, and regulatory precision.
See our workFast Turnaround
We action new projects immediately. No waiting in a queue — your registration process starts as soon as you're ready.
Regulation-Ready
We stay current with NERSA and SANS requirements and proactively inform installers when regulations change.
Collaboration
We work closely with solar installers and homeowners, adapting our communication to fit how you operate with your clients.
250+ Registrations
Residential registrations completed across South Africa — a track record built on consistent, compliant deliverables.
Western Cape Expertise
City of Cape Town, Stellenbosch, Drakenstein, Overberg, George, Theewaterskloof, Eskom, and municipalities nationwide.
Transparency
A fixed, predictable process with clear scope. Pricing on request — no hidden steps or surprise requirements.
We prepare and submit the application with professional PV system design documentation. Required documents are confirmed upfront.
Once accepted, the supply authority issues a PTI letter. We then schedule your site inspection.
Our team inspects for compliance and safety. Registered engineers provide final sign-off and prepare the commissioning report.
The commissioning report is submitted for final approval. Timelines vary by municipality — we keep you updated throughout.
What homeowners and installers ask us most often.
Registration with your supply authority is typically an insurance requirement. Unregistered systems can risk fines, penalties, and voided cover. We handle the application so your installation is properly on record.
Most municipalities require registered Professional Engineer sign-off — even if you already have a Certificate of Compliance. UES prepares the engineering deliverables authorities expect.
A registered PV system allows you to apply to feed back to the grid — adding long-term value and shortening payback time. Ask us how registration fits your municipality's process.
For installers
PV yield calculator, verify approved inverter (CoCT list), battery runtime, AC cable/breaker, DC/PV cable, and volt drop calculators — in one place.
Open installer toolsHigh-level helpers for quotes and registration readiness. Guidance only — not a stamped design. The volt drop tool still uses our copper table, Voltex CCC ratings, and the 5% UES specification.
Experienced with supply authorities across the Western Cape and nationwide.
Our official EFT account for invoice payments.
Homeowners: leave your name and how to reach you — we'll reply with clear next steps for registration and sign-off.
Installer partners: leave your name and how to reach you — we'll help with client registration and documentation.
General enquiry: leave your name and how to reach you — tell us what you need in the notes.
Choose homeowner, installer partner, or general enquiry, then tell us how to reach you.