Power Technologies
For landed homes
Solar ATAP for Malaysian homes
Solar ATAP — the Solar Accelerated Transition Action Programme — is the rooftop solar scheme that succeeded NEM 3.0, which closed on 30 June 2025. Unlike NEM Rakyat, it carries no quota cap, which makes it the practical route for most new home installations. EVOLTS handles the roof assessment, system design, TNB submission and installation — with the mounting and structural discipline of a company that has been detailing roofs for 45 years.
Is your home suitable?
Solar ATAP works best on landed property with meaningful daytime or evening consumption — typically households running multiple air-conditioners. The three things that decide feasibility are roof area, roof orientation and condition, and your current monthly bill.
| Property type | Usable roof | Typical system | Best suited to |
|---|---|---|---|
| Bungalow | 80–150 m² | 8–15 kWp | Bills above RM 600/month |
| Semi-detached | 50–90 m² | 5–10 kWp | Bills above RM 400/month |
| Corner terrace | 35–60 m² | 4–7 kWp | Bills above RM 300/month |
| Intermediate terrace | 25–40 m² | 3–5 kWp | Case by case — shading is the constraint |
Your electrical supply constrains size before your roof does. Under Solar ATAP, domestic assessment thresholds sit around 5 kW on single-phase and 15 kW on three-phase supply; above those a technical assessment is required. A single-phase home is therefore unlikely to run the larger systems in this table without a supply upgrade. Residential systems typically cost RM 3.00–4.20 per Wp installed. See full pricing and payback →
What homeowners are actually worried about
In our experience the decision is rarely about panel efficiency. It is about three fears, and they are reasonable ones.
“Will it leak?”
Roof penetration done badly is the single most common failure in Malaysian residential solar. We survey the roof condition before quoting, use non-penetrative mounting where the tile or metal profile allows, and water-test every penetration we do make. If your roof needs attention before an array goes on it, we will tell you that rather than build over the problem.
“Will the roof hold it?”
We run a load calculation rather than assuming. Malaysian residential roof structures vary enormously, particularly on older properties and extensions.
“What if the installer disappears?”
A fair concern in this market. Ask any contractor for their company registration, their SEDA registration status, and the names of the engineers who will sign off the work. We publish ours. We also take over systems abandoned by other installers, which tells you how often this happens.
Frequently asked
What is Solar ATAP?
Solar ATAP is the Solar Accelerated Transition Action Programme, the rooftop solar scheme that succeeded NEM 3.0 when it closed on 30 June 2025. It allows a property to generate its own electricity and offset consumption, and unlike NEM it does not operate under a fixed national quota.
How is Solar ATAP different from NEM 3.0?
NEM 3.0 comprised NEM Rakyat (700 MW), NEM GoMEn (100 MW) and NOVA (1,700 MW), and closed on 30 June 2025. Solar ATAP replaced it with no quota cap. Credit treatment also differs: domestic users offset at the regulated retail tariff, non-domestic users are credited on the System Marginal Price. See the scheme comparison.
How much can I save each month?
It depends on your consumption pattern more than your roof. Households with heavy daytime or early-evening air-conditioning use see the largest offsets. We model this from your actual TNB bills rather than quoting a headline percentage.
Do I need a battery at home?
Not usually, and it materially increases cost. A home battery makes sense if you experience frequent outages or want genuine backup for essential circuits. Otherwise the grid acts as your storage.
How long does installation take?
The physical installation on a typical landed home is a matter of days. The overall timeline is driven by TNB application and approval, which we handle and track on your behalf.
What maintenance does a home system need?
Periodic cleaning and an annual health check. Malaysian dust and bird fouling reduce yield more than most homeowners expect. See our maintenance service.