Updated March 2026: Solar adoption in Sabah and Sarawak is accelerating faster than ever, with ATAP quota allocations still 60-70% available in East Malaysia. With 10-15% higher solar irradiance and supportive SESB/SESCO policies, East Malaysia offers some of the best solar ROI in the country. However, unique challenges remain: different grid operators (SESB/SESCO vs TNB), higher logistics costs, and distinct Solar ATAP programs. This complete guide covers everything you need to know.
SESB, SESCO, and TNB: Key Differences for Solar
| Feature | SESB (Sabah) | SESCO (Sarawak) | TNB (West Malaysia) |
|---|---|---|---|
| Operator | Sabah Electricity Sdn Bhd | Sarawak Energy Berhad | Tenaga Nasional Berhad |
| NEM Program | Solar ATAP Sabah (mirrored from TNB) | NEM Sarawak (separate program) | Solar ATAP |
| Export Credit Rate | RM 0.218/kWh | RM 0.250/kWh (higher!) | RM 0.218/kWh |
| Residential Tariff | RM 0.34-0.58/kWh | RM 0.31-0.52/kWh | RM 0.218-0.571/kWh |
| Solar ATAP Cap | 75% of peak demand | 100% of peak demand | 75% of peak demand |
| Approval Time | 8-12 weeks | 6-10 weeks | 4-8 weeks |
| Grid Stability | Moderate (frequent outages rural areas) | Good (hydro-backed) | Excellent |
Key Takeaway: Sarawak's Higher Export Credit
SESCO pays RM 0.250/kWh for exported solar (vs RM 0.218 in TNB/SESB areas). This 15% premium makes solar ROI 0.3-0.5 years faster in Sarawak. Combined with lower residential tariffs, Sarawak homeowners see 2.0-2.3 year payback periods (vs 2.4-2.7 years in West Malaysia).
Solar Irradiance: East Malaysia's Natural Advantage
Sabah and Sarawak receive 10-15% more annual solar irradiance than West Malaysia due to:
- Lower latitude: Closer to equator = more direct sunlight year-round
- Less monsoon impact: Northeast monsoon affects East Coast (Kelantan, Terengganu) more than Sabah/Sarawak
- Hydro-backed grid: Less haze from coal plants (clearer skies)
| Location | Annual Irradiance (kWh/m²/year) | Daily Sun Hours (Average) | 6kW System Output (kWh/month) |
|---|---|---|---|
| Kota Kinabalu, Sabah | 1,850 | 4.5 hours | 810 kWh |
| Kuching, Sarawak | 1,820 | 4.4 hours | 792 kWh |
| Miri, Sarawak | 1,870 | 4.6 hours | 828 kWh |
| Sandakan, Sabah | 1,840 | 4.5 hours | 810 kWh |
| Klang Valley (West) | 1,650 | 4.0 hours | 720 kWh |
| Penang (West) | 1,600 | 3.9 hours | 702 kWh |
Real-World Impact: A 6kW system in Kota Kinabalu generates 810 kWh/month vs 720 kWh in Shah Alam. That's +90 kWh/month = +RM 51 extra savings (at RM 0.57/kWh). Over 20 years, that's +RM 12,240 in total savings.
NEM Sarawak vs Solar ATAP TNB: Program Differences
NEM Sarawak (SESCO) Unique Features
- 100% Peak Demand Cap: You can install solar up to your peak demand (vs 75% in TNB/SESB). If your peak is 10kW, you can install 10kW solar (vs 7.5kW maximum in West Malaysia).
- Higher Export Credit: RM 0.250/kWh vs RM 0.218 (15% more income from excess generation)
- Separate Application Portal: Apply via SESCO's portal, not SEDA (different forms, different process)
- Faster Approval: 6-10 weeks vs 8-12 weeks (SESB) and 4-8 weeks (TNB)
- Hydro Integration: SESCO's grid is 80% hydro-powered, making renewable integration smoother
Solar ATAP Sabah (SESB) Mirrored from TNB
- 75% Peak Demand Cap: Same as TNB (if peak is 10kW, max solar is 7.5kW)
- RM 0.218/kWh Export Credit: Same as TNB
- SEDA Submission: Same process as West Malaysia (apply via myseda.seda.gov.my)
- Slower Approval: 8-12 weeks (SESB processes applications slower due to smaller team)
Verdict: Sarawak's Solar ATAP program is more generous than Sabah and West Malaysia. If you're deciding between Sabah and Sarawak, Sarawak offers 15% better export income and 25% higher installation cap.
Solar Panel Pricing in Sabah & Sarawak (2026)
Solar systems in East Malaysia cost 8-15% more than West Malaysia due to:
- Shipping costs: Panels/inverters shipped from Port Klang to Kota Kinabalu/Kuching (RM 2,000-3,500 per container)
- Limited installers: Fewer SEDA-licensed installers = less price competition
- Travel costs: Installers from West Malaysia charge transport + accommodation
| System Size | West Malaysia (Selangor) | Sabah (Kota Kinabalu) | Sarawak (Kuching) | Price Difference |
|---|---|---|---|---|
| 4kW | RM 15,500 | RM 17,200 | RM 16,800 | +8-11% |
| 6kW | RM 22,000 | RM 24,500 | RM 23,800 | +8-11% |
| 10kW | RM 32,000 | RM 36,000 | RM 35,200 | +10-13% |
However: The 10-15% higher generation (more sun hours) and 15% higher export credit (Sarawak) offset the higher upfront cost. Net payback period is similar or faster than West Malaysia.
ROI Comparison: Sabah vs Sarawak vs West Malaysia
6kW System Payback Period:
- West Malaysia (Selangor): ~3.8 years (RM 22,000 cost, 720 kWh/month generation, RM 0.218/kWh export)
- Sabah (Kota Kinabalu): ~3.7 years (RM 24,500 cost, 810 kWh/month generation, RM 0.218/kWh export)
- Sarawak (Kuching): ~3.5 years (RM 23,800 cost, 792 kWh/month generation, RM 0.250/kWh export)
Winner: Sarawak has the fastest payback despite higher upfront cost, thanks to 15% better export credits.
Installation Challenges in Sabah & Sarawak
1. Limited SEDA-Licensed Installers
Sabah: ~25 active EPCC installers (vs 200+ in Selangor). Sarawak: ~35 active installers. This means:
- Longer waitlists (2-4 months vs 1-2 weeks in West Malaysia)
- Less price competition (harder to get 3-5 quotes)
- Some rural areas (interior Sabah, interior Sarawak) have no local installers
2. Shipping Logistics & Lead Time
Panels/inverters shipped from China/West Malaysia take 4-6 weeks to reach Sabah/Sarawak (vs 1-2 weeks in West Malaysia). Add customs clearance (1-2 weeks), and total lead time is 6-8 weeks vs 2-3 weeks in Selangor.
3. Grid Stability (Sabah Interior)
Rural Sabah (interior districts like Keningau, Tenom, Ranau) experiences frequent grid outages. Solar systems without battery backup shut down during outages (inverters need grid reference voltage). Solution: Hybrid inverter + battery (adds RM 10,000-15,000).
4. Access to Remote Areas
Interior Sarawak (Kapit, Belaga, Bario) and rural Sabah require 4WD access or boat transport. Installers charge RM 1,500-3,000 extra for mobilization to remote sites.
Solar ATAP in Sabah & Sarawak
Solar ATAP (bill credit programme) applies nationwide, including Sabah and Sarawak. Sarawak operates under SESCo's NEM framework with slightly different export credit rates. In both states, you export surplus solar energy to the grid and receive credits that offset your electricity bill — no cash subsidy is involved.
Note: There is no government cash subsidy programme for solar panels in Malaysia. Solar ATAP provides bill credits for exported energy — not upfront discounts or cash payments.
Trexon's Coverage in Sabah & Sarawak
Trexon Energy now serves East Malaysia through partnerships with local EPCC installers:
Sabah Coverage
- Kota Kinabalu: Full coverage (in-house team)
- Sandakan, Tawau, Lahad Datu: Partner installer network
- Keningau, Ranau, Tenom: On-demand (minimum 6kW system)
Sarawak Coverage
- Kuching, Miri, Sibu: Full coverage (partner installer network)
- Bintulu, Sri Aman: On-demand (minimum 5kW system)
- Interior (Kapit, Belaga): Case-by-case basis (10kW+ systems only)
Pricing & Warranty (East Malaysia)
- System Cost: +8-12% vs West Malaysia (logistics premium)
- Warranty: Same 25/15/10 years (panel/inverter/workmanship)
- After-Sales: Remote monitoring + local partner support (3-5 working days response time)
Best Solar Panel Systems for East Malaysia Climate
Recommended Panel Brands
- Longi Hi-MO 7: Best for high humidity (dual-glass construction resists moisture)
- Trina Vertex S+: Coastal-resistant (anti-corrosion frame, tested for salt spray)
- Jinko Tiger Neo: Best value (22.3% efficiency, 25-year warranty, RM 1.05/watt)
Recommended Inverter Brands
- Huawei SUN2000: IP65 rating (dustproof, waterproof), 98.6% efficiency, 4G monitoring
- Sungrow SG-RS: Anti-corrosion coating (ideal for coastal Sabah/Sarawak), 98.4% efficiency
Mounting Considerations
- Coastal areas (Kota Kinabalu, Sandakan, Miri): Stainless steel mounting (RM 500-800 extra) to resist salt corrosion
- Interior areas: Standard aluminum rail (no corrosion risk)
- High wind zones: Reinforced mounting with extra bracing (cyclone-rated, RM 300-500 extra)
Case Studies: Real Solar Installations in Sabah & Sarawak
Case Study 1: 8kW Bungalow in Kota Kinabalu, Sabah
- Property: 2-storey bungalow, Likas Bay
- Pre-Solar Bill: RM 820/month (SESB Tariff A)
- System Cost: RM 26,900 (Longi 560W panels + Huawei 8kW inverter, all-inclusive)
- Monthly Generation: 1,080 kWh (8kW × 4.5 sun hours)
- Monthly Savings: RM 720 (bill dropped to RM 100)
- Payback Period: ~3.2 years
- 20-Year Net Profit: RM 152,400
Case Study 2: 6kW Terrace in Kuching, Sarawak
- Property: Corner terrace, Semariang
- Pre-Solar Bill: RM 580/month (SESCO Tariff R1)
- System Cost: RM 20,900 (Trina 550W panels + Sungrow 6kW inverter, all-inclusive)
- Monthly Generation: 792 kWh (6kW × 4.4 sun hours)
- Monthly Savings: RM 520 (bill dropped to RM 60, higher SESCO export credit)
- Payback Period: ~3.5 years
- 20-Year Net Profit: RM 109,000
FAQ: Solar Panels in Sabah & Sarawak 2026
Can I use TNB's Solar ATAP program in Sabah and Sarawak?
No. Sabah uses SESB's Solar ATAP Sabah (mirrored from TNB). Sarawak uses SESCO's NEM Sarawak (separate program with 100% cap and RM 0.250/kWh export). You must apply through SESB/SESCO, not TNB.
Why are solar panels more expensive in Sabah and Sarawak?
Shipping costs from West Malaysia add RM 2,000-3,500 per container (passed to customers as 8-15% markup). Limited installer competition also keeps prices higher. However, 10-15% higher generation offsets the higher upfront cost.
Is Solar ATAP available in East Malaysia?
Yes. Solar ATAP (bill credit programme) is available nationwide including Sabah and Sarawak. Sarawak operates under SESCo's NEM framework with slightly different export rates. Both states offer strong solar ROI due to higher solar irradiance.
Does Trexon install solar panels in Sabah and Sarawak?
Yes. Trexon covers Kota Kinabalu, Sandakan, Tawau, Kuching, Miri, and Sibu through in-house teams and partner installers. We offer the same 25/15/10-year warranty and handle Solar ATAP registration and applications. Pricing is 8-12% higher than West Malaysia due to logistics.
Which is better for solar: Sabah or Sarawak?
Sarawak generally has better payback periods due to 15% higher export credits (RM 0.250 vs RM 0.218 in Peninsular Malaysia) and higher solar irradiance. Both states offer strong ROI compared to West Malaysia.
Conclusion: East Malaysia is Solar's New Frontier
Sabah and Sarawak offer some of Malaysia's best solar ROI thanks to 10-15% higher irradiance and (in Sarawak) higher export credits. While upfront costs are 8-15% higher due to logistics, payback periods are competitive with or better than West Malaysia.
If you're in Kota Kinabalu, Sandakan, Kuching, or Miri, solar is a no-brainer. Even interior areas can benefit from solar (though logistics costs are higher).
Ready to go solar in Sabah or Sarawak? Book the RM100 priority site visit — Trexon's East Malaysia team will provide a customized quote with SESB/SESCO-specific calculations. We handle all paperwork, shipping, and installation end-to-end.
Not sure what size system you need? Use our solar savings calculator to estimate your monthly savings based on your actual TNB/SESB bill — it works for Sabah and Sarawak tariffs too. For location-specific pricing and installer availability, visit our Sabah solar installation page or our Sarawak solar installation page.
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