Is it really possible to reduce your electricity bill to RM 0? Technically, you will still pay the minimum charge (RM 3), but yes—you can wipe out 90%+ of your variable costs.
The Concept of 'Offset'
A solar system generates power during the day (10am - 3pm peak). 1. First, this power runs your house directly (free). 2. Excess power is exported to TNB as credits.
Case Study: 2-Storey Terrace in Subang
- Average Bill: RM 450
- System Installed: 6.6 kWp
- Monthly Solar Generation: ~800 kWh
- New Bill: RM 35 - RM 60
Why 90% and not 100%?
While you can offset all energy charges, you cannot offset the Minimum Monthly Charge (RM 3) and the 1.6% KWTBB Fund levy on any imported energy.
ROI Sweet Spot
The highest ROI comes from offsetting the most expensive tariff tiers (Tier 4 & 5, which are > RM 0.50/kWh).
Enter your TNB bill amount into our solar savings calculator to see exactly how much you can slash. For a high-bill home looking to maximise offset, the 8kW solar system is our most popular choice for achieving 90%+ bill reduction.