How Much Could You Save?
Choose the calculator that matches your electricity tariff. Not sure? Check the bottom of your SESB bill for your tariff code, or just WhatsApp us.
Residential Calculator
For homeowners on the Domestic (DM) tariff. NEM Rakyat gives you 1:1 export credit — solar you don't use gets credited back to your bill at the same rate.
- SESB Domestic (DM) tiered tariff
- 1:1 kWh export credit (NEM Rakyat)
- Single or 3-phase systems
- 0.5 kWp sizing increments
Commercial Calculator
For businesses on the CM1 Commercial tariff. SELCO is a zero-export system — all solar generated is consumed on-site during business hours.
- SESB CM1 two-block tariff
- Zero-export (self-consumption only)
- 5 / 5.5 / 6 / 7 day operating schedules
- 1 kWp sizing increments
Not Sure Which One?
Check the tariff code on your SESB bill. If it says DM (Domestic), use the Residential calculator. If it says CM1, use the Commercial calculator. Still unsure? Just ask us.
How Our Calculators Work
Enter Your Bill
We reverse-engineer your monthly kWh usage from your SESB bill using the exact tariff tiers — not averages.
Size Your System
We calculate the optimal kWp based on Sabah solar yield (1,350 kWh/kWp/yr), your phase, and your operating pattern.
See Your Savings
Get a 10-year projection with 0.4%/yr panel degradation, environmental impact, and instant WhatsApp quote request.
Want an Exact Number?
Our engineers will assess your actual roof, usage patterns, and shading to give you a precise system design and savings projection — completely free.