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Guides7 min read

Solar Panel Installation Process 2026: A Step-by-Step Guide

CR
Chandra Rau
Founder & CEO
25 January 2026
Chandra Rau profile photo - Founder & CEO
· Founder & CEO

Going solar involves paperwork with SEDA and TNB. Here is what happens when you sign up with Trexon, from booking to switching on; for the full process and what we need from you at each stage, see our How it works page.

Week 1: Quote & Design Review

We start from your TNB bill and roof photos. We review your roof structure and electrical distribution board (DB) from your photos; no site visit is needed to quote.

Weeks 2-6: Solar ATAP Application

We submit your technical drawings to SEDA for Solar ATAP approval.

After Approval: Installation Day

The exciting part! Our team arrives in the morning. Complete installation for a standard terrace house takes 1 to 2 days.

  • Day 1: Mounting rails and panels.
  • Day 2: Inverter, AC/DC cabling, and Earthing.

Weeks 7-10: TNB Meter Swap

Once installed, we notify TNB. They will process the application and come to your home to swap your old meter for a bi-directional Solar ATAP meter. Once the meter is swapped, you can turn on the system!

Before you begin, use our solar calculator to find the right system size for your home. Then browse our packages to choose a bundle that fits your budget and energy goals.

See your estimated savings

Get a free, no-obligation solar quote online.

Tags
#Installation#Process#TNB#SEDA
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CR
Chandra Rau
Founder & CEO
Solar Energy Expert
Drill, safety rope and stacked panels on a tiled roof

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