In mid-2025, Malaysia upgraded its net-metering scheme for rooftop solar PV — refining export-credit treatment and tightening operational rules that fed forward into the Solar ATAP successor. pv magazine reported the changes in early July 2025. For us as installers, the upgrade fixed several billing-reconciliation headaches that had been generating customer-service tickets through 2024.
- Refined export-credit treatment for rooftop PV
- Improved alignment between meter export data and TNB billing cycles
- Updated commercial sizing guidance ahead of the Solar ATAP 100% MD change
- Set technical precedent for Solar ATAP design
- Affected both NEM 3.0 applicants in 2025 and downstream Solar ATAP
What changed in mid-2025
The upgrade refined how exported energy was credited against imported energy on a customer's TNB bill — improving alignment between meter data and billing cycles, and clarifying how surplus credits roll month to month. The technical changes weren't headline-grabbing, but they materially improved the customer experience: fewer billing surprises, cleaner reconciliation, and clearer expectations of what credits could and couldn't do. We saw the difference immediately in customer queries.
How the upgrade fed into Solar ATAP
The 2025 NEM upgrade was effectively a preparation phase for Solar ATAP. The Energy Commission and SEDA used it as a real-world test of refined credit mechanics before rolling those mechanics into the new programme. By the time Solar ATAP launched on 1 January 2026, the underlying net-metering framework had already been stress-tested under live NEM 3.0 conditions for six months.
What this means for you
For new customers in 2026, the 2025 net-metering upgrade is invisible — you just get the cleaner version of credit accounting as part of standard Solar ATAP operation. For NEM 3.0 contract holders who installed before the upgrade, the new rules generally apply forward, with installer support if billing reconciliation needs sorting out. If you want to understand how the credits actually work month by month, see our NEM 3.0 / net-metering primer.
Source
This summary is based on reporting from pv magazine. Read the full original report at the source link for the publisher's complete coverage.