For years, the golden rule of Malaysian solar was simple: “Fill up the roof!” Under the old NEM 3.0 policy, bigger systems meant bigger export credits that rolled over for 12 months. But as of January 1, 2026, the game has changed completely.
With the introduction of Solar ATAP, oversizing your system isn’t just unnecessary—it’s actively wasting your money.
⚠️ The “Use-It-or-Lose-It” Rule
Unlike NEM 3.0, Solar ATAP credits reset to zero at the end of every billing month. There is NO rollover to the next month. If you generate 500kWh but only use 300kWh, the remaining 200kWh credits are forfeited (burned) instantly on the 30th/31st.
Why “Bigger” is Now Bad ROI
Under the new 2026 framework, the goal is no longer to export as much as possible. The goal is Self-Consumption (SelCo). You only save money when your solar power is used immediately by your appliances (air-cond, fridge, EV charger) during the day.
| Feature | Old NEM 3.0 (Expired) | Solar ATAP 2026 (New) |
|---|---|---|
| Credit Rollover | 12 Months | None (Monthly Reset) |
| Export Rate | 1-to-1 (Retail Price) | SMP / Energy Charge Only |
| Best Strategy | Max out roof capacity | Precision Sizing |
The Solution: HOMI Precision Sizing™
At HOMI, we’ve updated our engineering algorithms for 2026. We don’t just sell you a standard 10kW or 15kW package. Instead, we analyze your Load Profile (when you use electricity) to design a system that generates exactly what you need.
For example, a household with a RM 800 bill might have needed 10kW under NEM 3.0. Under Solar ATAP, we might recommend a 7.2kW system optimized for daytime usage. This reduces your upfront cost by RM 8,000+ while delivering a faster ROI of ~3.5 years (vs 5+ years for an oversized system).
🌤️ Solar ATAP Quick Sizer
Estimate your optimal system size, not the maximum size.
Key Takeaway for 2026
Don’t let contractors push you into “maxing out” your roof if you can’t consume the power. The most profitable solar system in 2026 is the one that wastes zero energy. Smaller, smarter, and perfectly sized.
Get My Precision Sizing ReportFAQ: Solar ATAP 2026
Does Solar ATAP allow ANY export?
Yes, you can still export excess energy to the grid, and it will offset your bill for that specific month. The catch is that any “extra” credits remaining after your bill is offset to zero (for Energy Charge) will not be saved for next month.
Is it still worth installing solar in 2026?
Absolutely. Electricity tariffs are still rising. While the “banking” benefit is gone, the immediate savings from not buying expensive grid electricity (RM 0.57/kWh) remains huge. The ROI is excellent if the system is sized correctly.
How do I know my daytime usage?
Check your myTNB app’s “Smart Meter” section (if available) to see your hourly usage graph. Or, let HOMI install a power logger for 7 days to get precise data before you buy.
